PDB Short entry for 4XKL
HEADER    PROTEIN BINDING/METAL BINDING PROTEIN   12-JAN-15   4XKL              
TITLE     CRYSTAL STRUCTURE OF NDP52 ZF2 IN COMPLEX WITH MONO-UBIQUITIN         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: UBIQUITIN;                                                 
COMPND   3 CHAIN: A, C;                                                         
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: CALCIUM-BINDING AND COILED-COIL DOMAIN-CONTAINING PROTEIN  
COMPND   7 2;                                                                   
COMPND   8 CHAIN: B, D;                                                         
COMPND   9 FRAGMENT: ZINC FINGER, UNP RESIDUES 414-446;                         
COMPND  10 SYNONYM: ANTIGEN NUCLEAR DOT 52 KDA PROTEIN,NUCLEAR DOMAIN 10 PROTEIN
COMPND  11 NDP52,NUCLEAR DOMAIN 10 PROTEIN 52,NUCLEAR DOT PROTEIN 52;           
COMPND  12 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: UBA52;                                                         
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3);                                
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET3C;                                    
SOURCE  11 MOL_ID: 2;                                                           
SOURCE  12 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE  13 ORGANISM_COMMON: HUMAN;                                              
SOURCE  14 ORGANISM_TAXID: 9606;                                                
SOURCE  15 GENE: CALCOCO2, NDP52;                                               
SOURCE  16 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE  17 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE  18 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3);                                
SOURCE  19 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  20 EXPRESSION_SYSTEM_PLASMID: PET3C                                     
KEYWDS    NDP52, UBIQUITIN, ZINC FINGER, AUTOPHAGY RECEPTOR, COMPLEX, PROTEIN   
KEYWDS   2 BINDING-METAL BINDING PROTEIN COMPLEX                                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    X.XIE,F.LI,Y.WANG,Z.LIN,X.CHEN,J.LIU,L.PAN                            
REVDAT   2   08-NOV-23 4XKL    1       REMARK                                   
REVDAT   1   11-NOV-15 4XKL    0                                                
JRNL        AUTH   X.XIE,F.LI,Y.WANG,Y.WANG,Z.LIN,X.CHENG,J.LIU,C.CHEN,L.PAN    
JRNL        TITL   MOLECULAR BASIS OF UBIQUITIN RECOGNITION BY THE AUTOPHAGY    
JRNL        TITL 2 RECEPTOR CALCOCO2                                            
JRNL        REF    AUTOPHAGY                     V.  11  1775 2015              
JRNL        REFN                   ESSN 1554-8635                               
JRNL        PMID   26506893                                                     
JRNL        DOI    10.1080/15548627.2015.1082025                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.10 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.7.0029                                      
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) : 2.10                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 36.90                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 95.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 12283                          
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) : 0.196                           
REMARK   3   R VALUE            (WORKING SET) : 0.194                           
REMARK   3   FREE R VALUE                     : 0.243                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 641                             
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) : 2.10                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.15                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 931                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 97.32                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2320                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 48                           
REMARK   3   BIN FREE R VALUE                    : 0.2920                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1721                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 30                                      
REMARK   3   SOLVENT ATOMS            : 106                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 27.00                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 2.77000                                              
REMARK   3    B22 (A**2) : -1.58000                                             
REMARK   3    B33 (A**2) : -1.26000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 1.07000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.266         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.207         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.158         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 6.048         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.931                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.897                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1815 ; 0.008 ; 0.019       
REMARK   3   BOND LENGTHS OTHERS               (A):  1794 ; 0.001 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2447 ; 1.423 ; 1.995       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  4165 ; 0.829 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   227 ; 7.968 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    82 ;36.449 ;25.366       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   348 ;17.723 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     9 ;17.083 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   280 ; 0.082 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  2018 ; 0.015 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):   379 ; 0.007 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
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):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
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):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NCS TYPE: LOCAL                                                    
REMARK   3   NUMBER OF DIFFERENT NCS PAIRS  : 2                                 
REMARK   3  GROUP  CHAIN1    RANGE     CHAIN2     RANGE    COUNT RMS  WEIGHT    
REMARK   3    1     A    -1     76       C    -1     76    4751  0.16  0.05     
REMARK   3    2     B   417    445       D   417    445    1328  0.18  0.05     
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: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 4XKL COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 21-JAN-15.                  
REMARK 100 THE DEPOSITION ID IS D_1000205840.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-JAN-14                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRF                               
REMARK 200  BEAMLINE                       : BL17U                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.979                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315R                  
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 12924                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.100                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 36.900                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.3                               
REMARK 200  DATA REDUNDANCY                : 3.330                              
REMARK 200  R MERGE                    (I) : 0.08000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 9.5800                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.21                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 97.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.34                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.25000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 4.600                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: 1UBQ                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 46.16                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.28                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M MAGNESIUM ACETATE TETRAHYDRATE,    
REMARK 280  20% W/V POLYETHYLENE GLYCOL 3350, PH 7.5, VAPOR DIFFUSION,          
REMARK 280  SITTING DROP, TEMPERATURE 289K                                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y,-Z                                                 
REMARK 290       3555   X+1/2,Y+1/2,Z                                           
REMARK 290       4555   -X+1/2,Y+1/2,-Z                                         
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 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   3  1.000000  0.000000  0.000000       41.97500            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       36.90000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       41.97500            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       36.90000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
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 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 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 1020 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 6290 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -10.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
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 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 1080 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 6400 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -8.0 KCAL/MOL                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, D                                  
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 225  LIES ON A SPECIAL POSITION.                          
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     GLY A    -3                                                      
REMARK 465     PRO A    -2                                                      
REMARK 465     GLN B   414                                                      
REMARK 465     MET B   415                                                      
REMARK 465     GLN B   416                                                      
REMARK 465     GLY C    -3                                                      
REMARK 465     PRO C    -2                                                      
REMARK 465     GLN D   414                                                      
REMARK 465     MET D   415                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    GLY A  75   N   -  CA  -  C   ANGL. DEV. = -25.6 DEGREES          
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    LYS A  63      127.90    -33.60                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH B 613        DISTANCE =  6.10 ANGSTROMS                       
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 B 503  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS B 422   SG                                                     
REMARK 620 2 CYS B 425   SG  112.8                                              
REMARK 620 3 HIS B 440   NE2 102.4 115.5                                        
REMARK 620 4 HIS B 444   NE2 105.5 115.5 103.8                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN D 502  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS D 422   SG                                                     
REMARK 620 2 CYS D 425   SG  117.6                                              
REMARK 620 3 HIS D 440   NE2 103.9 114.4                                        
REMARK 620 4 HIS D 444   NE2 102.9 117.6  97.6                                  
REMARK 620 N                    1     2     3                                   
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue GOL A 101                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue ACT B 502                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue ZN B 503                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue GOL C 101                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue ACT C 102                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue ACT D 501                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue ZN D 502                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2MXP   RELATED DB: PDB                                   
DBREF  4XKL A    1    76  UNP    P62987   RL40_HUMAN       1     76             
DBREF  4XKL B  414   446  UNP    Q13137   CACO2_HUMAN    414    446             
DBREF  4XKL C    1    76  UNP    P62987   RL40_HUMAN       1     76             
DBREF  4XKL D  414   446  UNP    Q13137   CACO2_HUMAN    414    446             
SEQADV 4XKL GLY A   -3  UNP  P62987              EXPRESSION TAG                 
SEQADV 4XKL PRO A   -2  UNP  P62987              EXPRESSION TAG                 
SEQADV 4XKL GLY A   -1  UNP  P62987              EXPRESSION TAG                 
SEQADV 4XKL SER A    0  UNP  P62987              EXPRESSION TAG                 
SEQADV 4XKL GLY C   -3  UNP  P62987              EXPRESSION TAG                 
SEQADV 4XKL PRO C   -2  UNP  P62987              EXPRESSION TAG                 
SEQADV 4XKL GLY C   -1  UNP  P62987              EXPRESSION TAG                 
SEQADV 4XKL SER C    0  UNP  P62987              EXPRESSION TAG                 
SEQRES   1 A   80  GLY PRO GLY SER MET GLN ILE PHE VAL LYS THR LEU THR          
SEQRES   2 A   80  GLY LYS THR ILE THR LEU GLU VAL GLU PRO SER ASP THR          
SEQRES   3 A   80  ILE GLU ASN VAL LYS ALA LYS ILE GLN ASP LYS GLU GLY          
SEQRES   4 A   80  ILE PRO PRO ASP GLN GLN ARG LEU ILE PHE ALA GLY LYS          
SEQRES   5 A   80  GLN LEU GLU ASP GLY ARG THR LEU SER ASP TYR ASN ILE          
SEQRES   6 A   80  GLN LYS GLU SER THR LEU HIS LEU VAL LEU ARG LEU ARG          
SEQRES   7 A   80  GLY GLY                                                      
SEQRES   1 B   33  GLN MET GLN PRO LEU CYS PHE ASN CYS PRO ILE CYS ASP          
SEQRES   2 B   33  LYS ILE PHE PRO ALA THR GLU LYS GLN ILE PHE GLU ASP          
SEQRES   3 B   33  HIS VAL PHE CYS HIS SER LEU                                  
SEQRES   1 C   80  GLY PRO GLY SER MET GLN ILE PHE VAL LYS THR LEU THR          
SEQRES   2 C   80  GLY LYS THR ILE THR LEU GLU VAL GLU PRO SER ASP THR          
SEQRES   3 C   80  ILE GLU ASN VAL LYS ALA LYS ILE GLN ASP LYS GLU GLY          
SEQRES   4 C   80  ILE PRO PRO ASP GLN GLN ARG LEU ILE PHE ALA GLY LYS          
SEQRES   5 C   80  GLN LEU GLU ASP GLY ARG THR LEU SER ASP TYR ASN ILE          
SEQRES   6 C   80  GLN LYS GLU SER THR LEU HIS LEU VAL LEU ARG LEU ARG          
SEQRES   7 C   80  GLY GLY                                                      
SEQRES   1 D   33  GLN MET GLN PRO LEU CYS PHE ASN CYS PRO ILE CYS ASP          
SEQRES   2 D   33  LYS ILE PHE PRO ALA THR GLU LYS GLN ILE PHE GLU ASP          
SEQRES   3 D   33  HIS VAL PHE CYS HIS SER LEU                                  
HET    GOL  A 101       6                                                       
HET    ACT  B 501       4                                                       
HET    ACT  B 502       4                                                       
HET     ZN  B 503       1                                                       
HET    GOL  C 101       6                                                       
HET    ACT  C 102       4                                                       
HET    ACT  D 501       4                                                       
HET     ZN  D 502       1                                                       
HETNAM     GOL GLYCEROL                                                         
HETNAM     ACT ACETATE ION                                                      
HETNAM      ZN ZINC ION                                                         
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   5  GOL    2(C3 H8 O3)                                                  
FORMUL   6  ACT    4(C2 H3 O2 1-)                                               
FORMUL   8   ZN    2(ZN 2+)                                                     
FORMUL  13  HOH   *106(H2 O)                                                    
HELIX    1 AA1 THR A   22  GLY A   35  1                                  14    
HELIX    2 AA2 PRO A   37  ASP A   39  5                                   3    
HELIX    3 AA3 LEU A   56  ASN A   60  5                                   5    
HELIX    4 AA4 GLU B  433  HIS B  444  1                                  12    
HELIX    5 AA5 THR C   22  GLY C   35  1                                  14    
HELIX    6 AA6 PRO C   37  ASP C   39  5                                   3    
HELIX    7 AA7 LEU C   56  ASN C   60  5                                   5    
HELIX    8 AA8 GLU D  433  HIS D  444  1                                  12    
SHEET    1 AA1 5 THR A  12  VAL A  17  0                                        
SHEET    2 AA1 5 MET A   1  THR A   7 -1  N  VAL A   5   O  ILE A  13           
SHEET    3 AA1 5 THR A  66  LEU A  71  1  O  LEU A  67   N  LYS A   6           
SHEET    4 AA1 5 GLN A  41  PHE A  45 -1  N  ILE A  44   O  HIS A  68           
SHEET    5 AA1 5 LYS A  48  GLN A  49 -1  O  LYS A  48   N  PHE A  45           
SHEET    1 AA2 2 CYS B 419  ASN B 421  0                                        
SHEET    2 AA2 2 ILE B 428  PRO B 430 -1  O  PHE B 429   N  PHE B 420           
SHEET    1 AA3 4 THR C  12  VAL C  17  0                                        
SHEET    2 AA3 4 MET C   1  THR C   7 -1  N  MET C   1   O  VAL C  17           
SHEET    3 AA3 4 THR C  66  LEU C  71  1  O  LEU C  67   N  LYS C   6           
SHEET    4 AA3 4 GLN C  41  ILE C  44 -1  N  ILE C  44   O  HIS C  68           
SHEET    1 AA4 2 CYS D 419  ASN D 421  0                                        
SHEET    2 AA4 2 ILE D 428  PRO D 430 -1  O  PHE D 429   N  PHE D 420           
SSBOND   1 CYS B  419    CYS D  419                          1555   4758  2.21  
LINK         SG  CYS B 422                ZN    ZN B 503     1555   1555  2.28  
LINK         SG  CYS B 425                ZN    ZN B 503     1555   1555  2.08  
LINK         NE2 HIS B 440                ZN    ZN B 503     1555   1555  2.02  
LINK         NE2 HIS B 444                ZN    ZN B 503     1555   1555  2.25  
LINK         SG  CYS D 422                ZN    ZN D 502     1555   1555  2.31  
LINK         SG  CYS D 425                ZN    ZN D 502     1555   1555  2.33  
LINK         NE2 HIS D 440                ZN    ZN D 502     1555   1555  1.93  
LINK         NE2 HIS D 444                ZN    ZN D 502     1555   1555  2.21  
SITE     1 AC1  9 THR A   7  LEU A   8  THR A   9  LEU A  69                    
SITE     2 AC1  9 VAL A  70  LEU A  71  HOH A 213  LEU C  71                    
SITE     3 AC1  9 HOH D 601                                                     
SITE     1 AC2  4 ASP B 426  LYS B 427  ILE B 428  HOH B 615                    
SITE     1 AC3  4 CYS B 422  CYS B 425  HIS B 440  HIS B 444                    
SITE     1 AC4  8 THR C   7  LEU C   8  THR C   9  LEU C  69                    
SITE     2 AC4  8 VAL C  70  LEU C  71  HOH C 207  HOH C 208                    
SITE     1 AC5  2 LYS C  11  THR C  12                                          
SITE     1 AC6  1 CYS D 419                                                     
SITE     1 AC7  4 CYS D 422  CYS D 425  HIS D 440  HIS D 444                    
CRYST1   83.950   73.800   39.700  90.00 108.49  90.00 C 1 2 1       8          
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      0.011912  0.000000  0.003983        0.00000                         
SCALE2      0.000000  0.013550  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.026560        0.00000