PDB Short entry for 4YVB
HEADER    BIOTIN BINDING PROTEIN                  19-MAR-15   4YVB              
TITLE     STRUCTURE OF D128N STREPTAVIDIN                                       
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: STREPTAVIDIN;                                              
COMPND   3 CHAIN: A, B, C, D;                                                   
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: STREPTOMYCES AVIDINII;                          
SOURCE   3 ORGANISM_TAXID: 1895;                                                
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    STREPTAVIDIN, BIOPHYSICS, DYNAMICS, BIOTIN BINDING PROTEIN            
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    L.BAUGH,I.LE TRONG,P.S.STAYTON,R.E.STENKAMP,T.P.LYBRAND               
REVDAT   5   27-SEP-23 4YVB    1       REMARK                                   
REVDAT   4   25-DEC-19 4YVB    1       REMARK                                   
REVDAT   3   22-NOV-17 4YVB    1       REMARK                                   
REVDAT   2   06-SEP-17 4YVB    1       REMARK                                   
REVDAT   1   23-MAR-16 4YVB    0                                                
JRNL        AUTH   L.BAUGH,I.LE TRONG,P.S.STAYTON,R.E.STENKAMP,T.P.LYBRAND      
JRNL        TITL   A STREPTAVIDIN BINDING SITE MUTATION YIELDS AN UNEXPECTED    
JRNL        TITL 2 RESULT                                                       
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.35 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0110                                      
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) : 1.35                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 33.97                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 97.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 96132                          
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) : 0.129                           
REMARK   3   R VALUE            (WORKING SET) : 0.127                           
REMARK   3   FREE R VALUE                     : 0.170                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 5081                            
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) : 1.35                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.39                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 6685                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 91.97                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2530                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 371                          
REMARK   3   BIN FREE R VALUE                    : 0.2860                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3569                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 64                                      
REMARK   3   SOLVENT ATOMS            : 406                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 16.92                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.05000                                              
REMARK   3    B22 (A**2) : -0.64000                                             
REMARK   3    B33 (A**2) : 0.57000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : -0.03000                                             
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.047         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.049         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.033         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.842         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.982                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.971                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3831 ; 0.018 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  2389 ; 0.001 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  5256 ; 1.770 ; 1.910       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  5819 ; 0.991 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   481 ; 6.801 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   156 ;29.902 ;23.462       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   526 ;11.482 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    19 ;15.639 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   605 ; 0.115 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  4328 ; 0.009 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   823 ; 0.002 ; 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):  2367 ; 3.611 ; 4.000       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  1019 ; 3.326 ; 4.000       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  3792 ; 4.638 ; 6.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1464 ; 4.606 ; 6.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1464 ; 5.870 ;10.000       
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):  6220 ; 2.419 ; 3.000       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):   407 ;10.829 ; 3.000       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  6123 ; 6.837 ; 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 : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
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 U VALUES : REFINED INDIVIDUALLY                           
REMARK   4                                                                      
REMARK   4 4YVB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-MAR-15.                  
REMARK 100 THE DEPOSITION ID IS D_1000208154.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 19-JAN-11                          
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               : SSRL                               
REMARK 200  BEAMLINE                       : BL12-2                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.0                                
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : PSI PILATUS 6M                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : SCALA 3.3.16, XDS                  
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 101243                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.351                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 34.672                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.0                               
REMARK 200  DATA REDUNDANCY                : 4.500                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.04200                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 16.6000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.35                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.42                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 93.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.50                               
REMARK 200  R MERGE FOR SHELL          (I) : 1.09600                            
REMARK 200  R SYM FOR SHELL            (I) : 1.09600                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 0.700                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS            
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: 1MEP                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 48.67                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.40                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.05 M HEPES, PH 7.5 WITH 7.5% PEG       
REMARK 280  8000, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K               
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,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       49.47500            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
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 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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 11620 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 18410 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -41.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, 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 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     PRO A   135                                                      
REMARK 465     LYS C   134                                                      
REMARK 465     PRO C   135                                                      
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 B   317     O    HOH B   409              1.85            
REMARK 500   O    VAL B   133     O    HOH B   301              1.96            
REMARK 500   O    HOH B   399     O    HOH B   412              2.13            
REMARK 500   O    HOH B   348     O    HOH B   394              2.14            
REMARK 500   O    HOH D   324     O    HOH D   365              2.15            
REMARK 500   O    HOH A  5117     O    HOH C   369              2.18            
REMARK 500   O    HOH A  5179     O    HOH B   330              2.19            
REMARK 500   O    HOH B   344     O    HOH D   354              2.19            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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    ARG A 103   NE  -  CZ  -  NH1 ANGL. DEV. =   4.4 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    SER A  52     -157.77     66.54                                   
REMARK 500    GLU A 101       62.86   -116.97                                   
REMARK 500    SER B  52     -152.07     58.47                                   
REMARK 500    SER C  52     -159.97     65.67                                   
REMARK 500    SER D  52     -155.68     64.15                                   
REMARK 500    GLU D 101       66.11   -118.03                                   
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 A5204        DISTANCE =  6.03 ANGSTROMS                       
REMARK 525    HOH A5205        DISTANCE =  6.52 ANGSTROMS                       
REMARK 525    HOH B 428        DISTANCE =  6.19 ANGSTROMS                       
REMARK 525    HOH B 429        DISTANCE =  6.32 ANGSTROMS                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue BTN A 5001                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue BTN B 201                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue BTN C 201                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue BTN D 201                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3RY2   RELATED DB: PDB                                   
REMARK 900 3RY2 IS THE STRUCTURE OF WILD-TYPE STREPTAVIDIN BOUND TO BIOTIN.     
DBREF  4YVB A   16   135  UNP    P22629   SAV_STRAV       40    159             
DBREF  4YVB B   16   135  UNP    P22629   SAV_STRAV       40    159             
DBREF  4YVB C   16   135  UNP    P22629   SAV_STRAV       40    159             
DBREF  4YVB D   16   135  UNP    P22629   SAV_STRAV       40    159             
SEQADV 4YVB ASN A  128  UNP  P22629    ASP   152 ENGINEERED MUTATION            
SEQADV 4YVB ASN B  128  UNP  P22629    ASP   152 ENGINEERED MUTATION            
SEQADV 4YVB ASN C  128  UNP  P22629    ASP   152 ENGINEERED MUTATION            
SEQADV 4YVB ASN D  128  UNP  P22629    ASP   152 ENGINEERED MUTATION            
SEQRES   1 A  120  GLY ILE THR GLY THR TRP TYR ASN GLN LEU GLY SER THR          
SEQRES   2 A  120  PHE ILE VAL THR ALA GLY ALA ASP GLY ALA LEU THR GLY          
SEQRES   3 A  120  THR TYR GLU SER ALA VAL GLY ASN ALA GLU SER ARG TYR          
SEQRES   4 A  120  VAL LEU THR GLY ARG TYR ASP SER ALA PRO ALA THR ASP          
SEQRES   5 A  120  GLY SER GLY THR ALA LEU GLY TRP THR VAL ALA TRP LYS          
SEQRES   6 A  120  ASN ASN TYR ARG ASN ALA HIS SER ALA THR THR TRP SER          
SEQRES   7 A  120  GLY GLN TYR VAL GLY GLY ALA GLU ALA ARG ILE ASN THR          
SEQRES   8 A  120  GLN TRP LEU LEU THR SER GLY THR THR GLU ALA ASN ALA          
SEQRES   9 A  120  TRP LYS SER THR LEU VAL GLY HIS ASN THR PHE THR LYS          
SEQRES  10 A  120  VAL LYS PRO                                                  
SEQRES   1 B  120  GLY ILE THR GLY THR TRP TYR ASN GLN LEU GLY SER THR          
SEQRES   2 B  120  PHE ILE VAL THR ALA GLY ALA ASP GLY ALA LEU THR GLY          
SEQRES   3 B  120  THR TYR GLU SER ALA VAL GLY ASN ALA GLU SER ARG TYR          
SEQRES   4 B  120  VAL LEU THR GLY ARG TYR ASP SER ALA PRO ALA THR ASP          
SEQRES   5 B  120  GLY SER GLY THR ALA LEU GLY TRP THR VAL ALA TRP LYS          
SEQRES   6 B  120  ASN ASN TYR ARG ASN ALA HIS SER ALA THR THR TRP SER          
SEQRES   7 B  120  GLY GLN TYR VAL GLY GLY ALA GLU ALA ARG ILE ASN THR          
SEQRES   8 B  120  GLN TRP LEU LEU THR SER GLY THR THR GLU ALA ASN ALA          
SEQRES   9 B  120  TRP LYS SER THR LEU VAL GLY HIS ASN THR PHE THR LYS          
SEQRES  10 B  120  VAL LYS PRO                                                  
SEQRES   1 C  120  GLY ILE THR GLY THR TRP TYR ASN GLN LEU GLY SER THR          
SEQRES   2 C  120  PHE ILE VAL THR ALA GLY ALA ASP GLY ALA LEU THR GLY          
SEQRES   3 C  120  THR TYR GLU SER ALA VAL GLY ASN ALA GLU SER ARG TYR          
SEQRES   4 C  120  VAL LEU THR GLY ARG TYR ASP SER ALA PRO ALA THR ASP          
SEQRES   5 C  120  GLY SER GLY THR ALA LEU GLY TRP THR VAL ALA TRP LYS          
SEQRES   6 C  120  ASN ASN TYR ARG ASN ALA HIS SER ALA THR THR TRP SER          
SEQRES   7 C  120  GLY GLN TYR VAL GLY GLY ALA GLU ALA ARG ILE ASN THR          
SEQRES   8 C  120  GLN TRP LEU LEU THR SER GLY THR THR GLU ALA ASN ALA          
SEQRES   9 C  120  TRP LYS SER THR LEU VAL GLY HIS ASN THR PHE THR LYS          
SEQRES  10 C  120  VAL LYS PRO                                                  
SEQRES   1 D  120  GLY ILE THR GLY THR TRP TYR ASN GLN LEU GLY SER THR          
SEQRES   2 D  120  PHE ILE VAL THR ALA GLY ALA ASP GLY ALA LEU THR GLY          
SEQRES   3 D  120  THR TYR GLU SER ALA VAL GLY ASN ALA GLU SER ARG TYR          
SEQRES   4 D  120  VAL LEU THR GLY ARG TYR ASP SER ALA PRO ALA THR ASP          
SEQRES   5 D  120  GLY SER GLY THR ALA LEU GLY TRP THR VAL ALA TRP LYS          
SEQRES   6 D  120  ASN ASN TYR ARG ASN ALA HIS SER ALA THR THR TRP SER          
SEQRES   7 D  120  GLY GLN TYR VAL GLY GLY ALA GLU ALA ARG ILE ASN THR          
SEQRES   8 D  120  GLN TRP LEU LEU THR SER GLY THR THR GLU ALA ASN ALA          
SEQRES   9 D  120  TRP LYS SER THR LEU VAL GLY HIS ASN THR PHE THR LYS          
SEQRES  10 D  120  VAL LYS PRO                                                  
HET    BTN  A5001      16                                                       
HET    BTN  B 201      16                                                       
HET    BTN  C 201      16                                                       
HET    BTN  D 201      16                                                       
HETNAM     BTN BIOTIN                                                           
FORMUL   5  BTN    4(C10 H16 N2 O3 S)                                           
FORMUL   9  HOH   *406(H2 O)                                                    
HELIX    1 AA1 ASN A  118  LYS A  121  5                                   4    
HELIX    2 AA2 ASN B  118  LYS B  121  5                                   4    
HELIX    3 AA3 THR C  115  LYS C  121  5                                   7    
HELIX    4 AA4 ASN D  118  LYS D  121  5                                   4    
SHEET    1 AA1 9 GLY A  19  ASN A  23  0                                        
SHEET    2 AA1 9 THR A  28  ALA A  33 -1  O  PHE A  29   N  TRP A  21           
SHEET    3 AA1 9 ALA A  38  GLU A  44 -1  O  THR A  42   N  ILE A  30           
SHEET    4 AA1 9 TYR A  54  TYR A  60 -1  O  GLY A  58   N  LEU A  39           
SHEET    5 AA1 9 THR A  71  LYS A  80 -1  O  THR A  76   N  THR A  57           
SHEET    6 AA1 9 ASN A  85  VAL A  97 -1  O  TRP A  92   N  TRP A  75           
SHEET    7 AA1 9 ARG A 103  SER A 112 -1  O  ARG A 103   N  VAL A  97           
SHEET    8 AA1 9 THR A 123  THR A 131 -1  O  PHE A 130   N  ILE A 104           
SHEET    9 AA1 9 GLY A  19  ASN A  23 -1  N  TYR A  22   O  THR A 131           
SHEET    1 AA2 9 GLY B  19  ASN B  23  0                                        
SHEET    2 AA2 9 THR B  28  ALA B  33 -1  O  PHE B  29   N  TRP B  21           
SHEET    3 AA2 9 ALA B  38  GLU B  44 -1  O  THR B  42   N  ILE B  30           
SHEET    4 AA2 9 TYR B  54  TYR B  60 -1  O  TYR B  54   N  TYR B  43           
SHEET    5 AA2 9 THR B  71  LYS B  80 -1  O  THR B  76   N  THR B  57           
SHEET    6 AA2 9 ASN B  85  VAL B  97 -1  O  ALA B  86   N  TRP B  79           
SHEET    7 AA2 9 ARG B 103  SER B 112 -1  O  GLN B 107   N  SER B  93           
SHEET    8 AA2 9 THR B 123  THR B 131 -1  O  PHE B 130   N  ILE B 104           
SHEET    9 AA2 9 GLY B  19  ASN B  23 -1  N  TYR B  22   O  THR B 131           
SHEET    1 AA3 9 GLY C  19  ASN C  23  0                                        
SHEET    2 AA3 9 THR C  28  ALA C  33 -1  O  PHE C  29   N  TRP C  21           
SHEET    3 AA3 9 ALA C  38  GLU C  44 -1  O  THR C  42   N  ILE C  30           
SHEET    4 AA3 9 TYR C  54  TYR C  60 -1  O  GLY C  58   N  LEU C  39           
SHEET    5 AA3 9 THR C  71  LYS C  80 -1  O  THR C  76   N  THR C  57           
SHEET    6 AA3 9 ASN C  85  VAL C  97 -1  O  THR C  90   N  VAL C  77           
SHEET    7 AA3 9 ARG C 103  SER C 112 -1  O  ARG C 103   N  VAL C  97           
SHEET    8 AA3 9 THR C 123  THR C 131 -1  O  PHE C 130   N  ILE C 104           
SHEET    9 AA3 9 GLY C  19  ASN C  23 -1  N  TYR C  22   O  THR C 131           
SHEET    1 AA4 9 GLY D  19  TYR D  22  0                                        
SHEET    2 AA4 9 THR D  28  ALA D  33 -1  O  PHE D  29   N  TRP D  21           
SHEET    3 AA4 9 ALA D  38  GLU D  44 -1  O  THR D  42   N  ILE D  30           
SHEET    4 AA4 9 TYR D  54  TYR D  60 -1  O  GLY D  58   N  LEU D  39           
SHEET    5 AA4 9 THR D  71  LYS D  80 -1  O  THR D  76   N  THR D  57           
SHEET    6 AA4 9 ASN D  85  VAL D  97 -1  O  SER D  88   N  TRP D  79           
SHEET    7 AA4 9 ARG D 103  SER D 112 -1  O  ARG D 103   N  VAL D  97           
SHEET    8 AA4 9 THR D 123  THR D 131 -1  O  PHE D 130   N  ILE D 104           
SHEET    9 AA4 9 GLY D  19  TYR D  22 -1  N  TYR D  22   O  THR D 131           
SITE     1 AC1 14 ASN A  23  LEU A  25  SER A  27  TYR A  43                    
SITE     2 AC1 14 SER A  45  VAL A  47  ASN A  49  TRP A  79                    
SITE     3 AC1 14 SER A  88  THR A  90  TRP A 108  LEU A 110                    
SITE     4 AC1 14 ASN A 128  TRP D 120                                          
SITE     1 AC2 16 ASN B  23  LEU B  25  SER B  27  TYR B  43                    
SITE     2 AC2 16 SER B  45  VAL B  47  ASN B  49  TRP B  79                    
SITE     3 AC2 16 SER B  88  THR B  90  TRP B 108  LEU B 110                    
SITE     4 AC2 16 ASN B 128  HOH B 303  HOH B 317  TRP C 120                    
SITE     1 AC3 15 TRP B 120  ASN C  23  LEU C  25  SER C  27                    
SITE     2 AC3 15 TYR C  43  SER C  45  VAL C  47  GLY C  48                    
SITE     3 AC3 15 ASN C  49  TRP C  79  SER C  88  THR C  90                    
SITE     4 AC3 15 TRP C 108  ASN C 128  HOH C 304                               
SITE     1 AC4 14 TRP A 120  ASN D  23  LEU D  25  SER D  27                    
SITE     2 AC4 14 TYR D  43  SER D  45  VAL D  47  ASN D  49                    
SITE     3 AC4 14 TRP D  79  SER D  88  THR D  90  TRP D 108                    
SITE     4 AC4 14 LEU D 110  ASN D 128                                          
CRYST1   50.597   98.950   52.638  90.00 112.58  90.00 P 1 21 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      0.019764  0.000000  0.008217        0.00000                         
SCALE2      0.000000  0.010106  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.020574        0.00000