PDB Short entry for 3B3S
HEADER    HYDROLASE                               22-OCT-07   3B3S              
TITLE     CRYSTAL STRUCTURE OF THE M180A MUTANT OF THE AMINOPEPTIDASE FROM      
TITLE    2 VIBRIO PROTEOLYTICUS IN COMPLEX WITH LEUCINE                         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: BACTERIAL LEUCYL AMINOPEPTIDASE;                           
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: RESIDUES 107-397;                                          
COMPND   5 EC: 3.4.11.10;                                                       
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: VIBRIO PROTEOLYTICUS;                           
SOURCE   3 ORGANISM_TAXID: 671;                                                 
SOURCE   4 STRAIN: DSM 30189 / IFO 13287 / LMG 3772 / NCIMB 1326;               
SOURCE   5 ATCC: 15338;                                                         
SOURCE   6 GENE: AAP;                                                           
SOURCE   7 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21;                            
SOURCE   8 EXPRESSION_SYSTEM_TAXID: 511693;                                     
SOURCE   9 EXPRESSION_SYSTEM_STRAIN: BL21;                                      
SOURCE  10 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  11 EXPRESSION_SYSTEM_PLASMID: PET21B                                    
KEYWDS    ALPHA BETA, AMINOPEPTIDASE, HYDROLASE, METAL-BINDING, PROTEASE,       
KEYWDS   2 SECRETED, ZINC, ZYMOGEN                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    N.J.ATAIE,Q.Q.HOANG,G.A.PETSKO,D.RINGE                                
REVDAT   6   20-OCT-21 3B3S    1       REMARK SEQADV LINK                       
REVDAT   5   25-OCT-17 3B3S    1       REMARK                                   
REVDAT   4   24-FEB-09 3B3S    1       VERSN                                    
REVDAT   3   12-AUG-08 3B3S    1       JRNL                                     
REVDAT   2   19-FEB-08 3B3S    1       AUTHOR JRNL                              
REVDAT   1   27-NOV-07 3B3S    0                                                
JRNL        AUTH   N.J.ATAIE,Q.Q.HOANG,M.P.ZAHNISER,Y.TU,A.MILNE,G.A.PETSKO,    
JRNL        AUTH 2 D.RINGE                                                      
JRNL        TITL   ZINC COORDINATION GEOMETRY AND LIGAND BINDING AFFINITY: THE  
JRNL        TITL 2 STRUCTURAL AND KINETIC ANALYSIS OF THE SECOND-SHELL SERINE   
JRNL        TITL 3 228 RESIDUE AND THE METHIONINE 180 RESIDUE OF THE            
JRNL        TITL 4 AMINOPEPTIDASE FROM VIBRIO PROTEOLYTICUS.                    
JRNL        REF    BIOCHEMISTRY                  V.  47  7673 2008              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   18576673                                                     
JRNL        DOI    10.1021/BI702188E                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.18 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0019                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.18                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 17.21                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 97.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 102599                         
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.168                           
REMARK   3   R VALUE            (WORKING SET) : 0.166                           
REMARK   3   FREE R VALUE                     : 0.196                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 5139                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.18                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.21                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 7205                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.66                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2050                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 367                          
REMARK   3   BIN FREE R VALUE                    : 0.2530                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2208                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 25                                      
REMARK   3   SOLVENT ATOMS            : 299                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 15.45                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.03000                                             
REMARK   3    B22 (A**2) : -0.03000                                             
REMARK   3    B33 (A**2) : 0.04000                                              
REMARK   3    B12 (A**2) : -0.01000                                             
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.038         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.039         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.029         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.402         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.972                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.962                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  2444 ; 0.015 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  3370 ; 1.618 ; 1.937       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   341 ; 5.950 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   109 ;36.633 ;25.688       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   380 ;11.304 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     6 ;18.838 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   381 ; 0.102 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1924 ; 0.009 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1340 ; 0.235 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  1735 ; 0.313 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   255 ; 0.175 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):     9 ; 0.177 ; 0.200       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    61 ; 0.311 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    57 ; 0.436 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):     2 ; 0.170 ; 0.200       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  1569 ; 1.776 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2545 ; 2.528 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   875 ; 3.228 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   806 ; 4.433 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  2444 ; 1.715 ; 3.000       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):   309 ; 7.965 ; 3.000       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  2370 ; 5.446 ; 3.000       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 3B3S COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 24-OCT-07.                  
REMARK 100 THE DEPOSITION ID IS D_1000045042.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 8.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 14-BM-C                            
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.90010                            
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 102599                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.180                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 17.210                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: MOLREP                                                
REMARK 200 STARTING MODEL: PDB ENTRY 1AMP                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 51.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.51                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: HEPES, KSCN, NACL, PH 8.0, VAPOR         
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 298K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 2 2                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   -X,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+5/6                                            
REMARK 290       6555   X-Y,X,Z+1/6                                             
REMARK 290       7555   Y,X,-Z+1/3                                              
REMARK 290       8555   X-Y,-Y,-Z                                               
REMARK 290       9555   -X,-X+Y,-Z+2/3                                          
REMARK 290      10555   -Y,-X,-Z+5/6                                            
REMARK 290      11555   -X+Y,Y,-Z+1/2                                           
REMARK 290      12555   X,X-Y,-Z+1/6                                            
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       30.34067            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       60.68133            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       45.51100            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       75.85167            
REMARK 290   SMTRY1   6  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       15.17033            
REMARK 290   SMTRY1   7 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       30.34067            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   9 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   9  0.000000  0.000000 -1.000000       60.68133            
REMARK 290   SMTRY1  10  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  10 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000       75.85167            
REMARK 290   SMTRY1  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  11  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000       45.51100            
REMARK 290   SMTRY1  12  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  12  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       15.17033            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 300 REMARK: AUTHORS STATE THAT THE BIOLOGICAL UNIT OF THIS PROTEIN IS    
REMARK 300 UNKNOWN.                                                             
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 379  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 428  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 602  LIES ON A SPECIAL POSITION.                          
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    HOH A   363     O    HOH A   595              1.68            
REMARK 500   NE2  GLN A    44     O    HOH A   525              1.79            
REMARK 500   O    HOH A   333     O    HOH A   538              2.00            
REMARK 500   O    HOH A   475     O    HOH A   521              2.02            
REMARK 500   O    HOH A   363     O    HOH A   443              2.10            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A   573     O    HOH A   578     8556     0.82            
REMARK 500   O    HOH A   376     O    HOH A   593     5554     1.20            
REMARK 500   O    HOH A   355     O    HOH A   557     5554     1.53            
REMARK 500   O    HOH A   533     O    HOH A   571    10555     1.65            
REMARK 500   ND2  ASN A   249     O    HOH A   496     8556     2.17            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    GLU A  86      -40.37   -130.14                                   
REMARK 500    ASP A 179     -138.67    -95.92                                   
REMARK 500    ALA A 180      108.91     73.17                                   
REMARK 500    SER A 265      -96.35    -99.85                                   
REMARK 500    SER A 265     -120.78   -103.27                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 293  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  97   NE2                                                    
REMARK 620 2 ASP A 117   OD1  99.9                                              
REMARK 620 3 ASP A 179   OD1  96.5 126.3                                        
REMARK 620 4 ASP A 179   OD2 101.3  99.8  26.5                                  
REMARK 620 5 HOH A 412   O   109.5 101.5 120.2 138.5                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 292  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 117   OD2                                                    
REMARK 620 2 GLU A 152   OE2  97.0                                              
REMARK 620 3 HIS A 256   NE2  91.8 106.0                                        
REMARK 620 4 HOH A 412   O   101.5 101.3 147.9                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NA A 298  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 THR A 194   O                                                      
REMARK 620 2 THR A 197   O   106.8                                              
REMARK 620 3 HOH A 306   O    92.9  80.7                                        
REMARK 620 4 HOH A 468   O    74.8  76.4 149.3                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NA A 297  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 TYR A 218   OH                                                     
REMARK 620 2 HOH A 373   O   102.4                                              
REMARK 620 3 HOH A 555   O    77.4 174.0                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NA A 295  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 LYS A 273   NZ                                                     
REMARK 620 2 HOH A 564   O    88.6                                              
REMARK 620 N                    1                                               
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 292                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 293                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 294                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 295                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 296                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 297                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 298                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 299                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 300                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 301                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SCN A 302                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SCN A 303                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE LEU A 304                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3B35   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF M180A MUTANT OF AMINOPEPTIDASE FROM VIBRIO      
REMARK 900 PROTEOLYTICUS                                                        
REMARK 900 RELATED ID: 3B3C   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF M180A MUTANT OF AMINOPEPTIDASE FROM VIBRIO      
REMARK 900 PROTEOLYTICUS IN COMPLEX WITH LEUCINE PHOSPHONIC ACID                
REMARK 900 RELATED ID: 3B3T   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF D118N MUTANT OF AMINOPEPTIDASE FROM VIBRIO      
REMARK 900 PROTEOLYTICUS                                                        
REMARK 900 RELATED ID: 3B3V   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF S228A MUTANT OF AMINOPEPTIDASE FROM VIBRIO      
REMARK 900 PROTEOLYTICUS                                                        
REMARK 900 RELATED ID: 3B3W   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF S228A MUTANT OF AMINOPEPTIDASE FROM VIBRIO      
REMARK 900 PROTEOLYTICUS IN COMPLEX WITH LEUCINE                                
DBREF  3B3S A    1   291  UNP    Q01693   AMPX_VIBPR     107    397             
SEQADV 3B3S ALA A  180  UNP  Q01693    MET   286 ENGINEERED MUTATION            
SEQRES   1 A  291  MET PRO PRO ILE THR GLN GLN ALA THR VAL THR ALA TRP          
SEQRES   2 A  291  LEU PRO GLN VAL ASP ALA SER GLN ILE THR GLY THR ILE          
SEQRES   3 A  291  SER SER LEU GLU SER PHE THR ASN ARG PHE TYR THR THR          
SEQRES   4 A  291  THR SER GLY ALA GLN ALA SER ASP TRP ILE ALA SER GLU          
SEQRES   5 A  291  TRP GLN ALA LEU SER ALA SER LEU PRO ASN ALA SER VAL          
SEQRES   6 A  291  LYS GLN VAL SER HIS SER GLY TYR ASN GLN LYS SER VAL          
SEQRES   7 A  291  VAL MET THR ILE THR GLY SER GLU ALA PRO ASP GLU TRP          
SEQRES   8 A  291  ILE VAL ILE GLY GLY HIS LEU ASP SER THR ILE GLY SER          
SEQRES   9 A  291  HIS THR ASN GLU GLN SER VAL ALA PRO GLY ALA ASP ASP          
SEQRES  10 A  291  ASP ALA SER GLY ILE ALA ALA VAL THR GLU VAL ILE ARG          
SEQRES  11 A  291  VAL LEU SER GLU ASN ASN PHE GLN PRO LYS ARG SER ILE          
SEQRES  12 A  291  ALA PHE MET ALA TYR ALA ALA GLU GLU VAL GLY LEU ARG          
SEQRES  13 A  291  GLY SER GLN ASP LEU ALA ASN GLN TYR LYS SER GLU GLY          
SEQRES  14 A  291  LYS ASN VAL VAL SER ALA LEU GLN LEU ASP ALA THR ASN          
SEQRES  15 A  291  TYR LYS GLY SER ALA GLN ASP VAL VAL PHE ILE THR ASP          
SEQRES  16 A  291  TYR THR ASP SER ASN PHE THR GLN TYR LEU THR GLN LEU          
SEQRES  17 A  291  MET ASP GLU TYR LEU PRO SER LEU THR TYR GLY PHE ASP          
SEQRES  18 A  291  THR CYS GLY TYR ALA CYS SER ASP HIS ALA SER TRP HIS          
SEQRES  19 A  291  ASN ALA GLY TYR PRO ALA ALA MET PRO PHE GLU SER LYS          
SEQRES  20 A  291  PHE ASN ASP TYR ASN PRO ARG ILE HIS THR THR GLN ASP          
SEQRES  21 A  291  THR LEU ALA ASN SER ASP PRO THR GLY SER HIS ALA LYS          
SEQRES  22 A  291  LYS PHE THR GLN LEU GLY LEU ALA TYR ALA ILE GLU MET          
SEQRES  23 A  291  GLY SER ALA THR GLY                                          
HET     ZN  A 292       1                                                       
HET     ZN  A 293       1                                                       
HET     NA  A 294       1                                                       
HET     NA  A 295       1                                                       
HET     NA  A 296       1                                                       
HET     NA  A 297       1                                                       
HET     NA  A 298       1                                                       
HET     NA  A 299       1                                                       
HET     NA  A 300       1                                                       
HET     NA  A 301       1                                                       
HET    SCN  A 302       3                                                       
HET    SCN  A 303       3                                                       
HET    LEU  A 304       9                                                       
HETNAM      ZN ZINC ION                                                         
HETNAM      NA SODIUM ION                                                       
HETNAM     SCN THIOCYANATE ION                                                  
HETNAM     LEU LEUCINE                                                          
FORMUL   2   ZN    2(ZN 2+)                                                     
FORMUL   4   NA    8(NA 1+)                                                     
FORMUL  12  SCN    2(C N S 1-)                                                  
FORMUL  14  LEU    C6 H13 N O2                                                  
FORMUL  15  HOH   *299(H2 O)                                                    
HELIX    1   1 GLN A    6  LEU A   14  1                                   9    
HELIX    2   2 PRO A   15  VAL A   17  5                                   3    
HELIX    3   3 ASP A   18  SER A   31  1                                  14    
HELIX    4   4 THR A   39  ALA A   58  1                                  20    
HELIX    5   5 ASP A  118  ASN A  135  1                                  18    
HELIX    6   6 ALA A  150  GLY A  154  5                                   5    
HELIX    7   7 LEU A  155  GLU A  168  1                                  14    
HELIX    8   8 ASP A  198  LEU A  213  1                                  16    
HELIX    9   9 ASP A  229  ALA A  236  1                                   8    
HELIX   10  10 LYS A  247  TYR A  251  5                                   5    
HELIX   11  11 THR A  261  SER A  265  5                                   5    
HELIX   12  12 GLY A  269  ALA A  289  1                                  21    
SHEET    1   A 6 ALA A  63  HIS A  70  0                                        
SHEET    2   A 6 TYR A  73  ILE A  82 -1  O  SER A  77   N  VAL A  68           
SHEET    3   A 6 ARG A 141  TYR A 148 -1  O  PHE A 145   N  MET A  80           
SHEET    4   A 6 ALA A  87  HIS A  97  1  N  ILE A  92   O  ALA A 144           
SHEET    5   A 6 ASN A 171  GLN A 177  1  O  ASN A 171   N  TRP A  91           
SHEET    6   A 6 ALA A 240  ALA A 241  1  O  ALA A 241   N  GLN A 177           
SHEET    1   B 3 TYR A 218  ASP A 221  0                                        
SHEET    2   B 3 VAL A 190  ILE A 193  1  N  PHE A 192   O  GLY A 219           
SHEET    3   B 3 PRO A 243  PHE A 244 -1  O  PHE A 244   N  VAL A 191           
SSBOND   1 CYS A  223    CYS A  227                          1555   1555  2.03  
LINK         NE2 HIS A  97                ZN    ZN A 293     1555   1555  1.95  
LINK         OD2 ASP A 117                ZN    ZN A 292     1555   1555  1.91  
LINK         OD1 ASP A 117                ZN    ZN A 293     1555   1555  1.90  
LINK         OE2 GLU A 152                ZN    ZN A 292     1555   1555  2.14  
LINK         OD1BASP A 179                ZN    ZN A 293     1555   1555  2.18  
LINK         OD2AASP A 179                ZN    ZN A 293     1555   1555  1.89  
LINK         O   THR A 194                NA    NA A 298     1555   1555  2.51  
LINK         O   THR A 197                NA    NA A 298     1555   1555  2.68  
LINK         OG  SER A 215                NA    NA A 294     1555   1555  2.78  
LINK         OH  TYR A 218                NA    NA A 297     1555   1555  2.40  
LINK         NE2 HIS A 234                NA    NA A 299     1555   1555  2.01  
LINK         NE2 HIS A 256                ZN    ZN A 292     1555   1555  1.96  
LINK         NZ  LYS A 273                NA    NA A 295     1555   1555  3.00  
LINK        ZN    ZN A 292                 O   HOH A 412     1555   1555  1.89  
LINK        ZN    ZN A 293                 O   HOH A 412     1555   1555  1.97  
LINK        NA    NA A 295                 O   HOH A 564     1555   1555  2.78  
LINK        NA    NA A 297                 O   HOH A 373     1555   1555  2.47  
LINK        NA    NA A 297                 O   HOH A 555     1555   1555  2.49  
LINK        NA    NA A 298                 O   HOH A 306     1555   1555  2.45  
LINK        NA    NA A 298                 O   HOH A 468     1555   1555  2.46  
CISPEP   1 ASP A  117    ASP A  118          0         0.86                     
SITE     1 AC1  6 ASP A 117  GLU A 152  HIS A 256   ZN A 293                    
SITE     2 AC1  6 LEU A 304  HOH A 412                                          
SITE     1 AC2  7 HIS A  97  ASP A 117  GLU A 151  ASP A 179                    
SITE     2 AC2  7  ZN A 292  LEU A 304  HOH A 412                               
SITE     1 AC3  3 LEU A 213  PRO A 214  SER A 215                               
SITE     1 AC4  3 ALA A  19  LYS A 273  HOH A 564                               
SITE     1 AC5  4 ASP A  47  TRP A  48  SER A  51  HOH A 502                    
SITE     1 AC6  7 SER A  20  TYR A 218  HOH A 305  HOH A 358                    
SITE     2 AC6  7 HOH A 373  HOH A 555  HOH A 575                               
SITE     1 AC7  5 THR A 194  THR A 197  HOH A 306  HOH A 381                    
SITE     2 AC7  5 HOH A 468                                                     
SITE     1 AC8  1 HIS A 234                                                     
SITE     1 AC9  1  NA A 301                                                     
SITE     1 BC1  1  NA A 300                                                     
SITE     1 BC2  6 THR A 194  SER A 199  THR A 202  GLN A 203                    
SITE     2 BC2  6 LEU A 262  HOH A 306                                          
SITE     1 BC3  3 ALA A  12  TRP A  13  HOH A 330                               
SITE     1 BC4 13 GLU A 151  GLU A 152  ASP A 179  TYR A 225                    
SITE     2 BC4 13 CYS A 227  PHE A 248  ILE A 255  HIS A 256                    
SITE     3 BC4 13  ZN A 292   ZN A 293  HOH A 363  HOH A 412                    
SITE     4 BC4 13 HOH A 583                                                     
CRYST1  109.485  109.485   91.022  90.00  90.00 120.00 P 61 2 2     12          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.009134  0.005273  0.000000        0.00000                         
SCALE2      0.000000  0.010547  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.010986        0.00000