HEADER    HYDROLASE                               08-DEC-14   4RX3              
TITLE     A TRIPLE MUTANT IN THE OMEGA-LOOP OF TEM-1 BETA-LACTAMASE CHANGES THE 
TITLE    2 SUBSTRATE PROFILE VIA A LARGE CONFORMATIONAL CHANGE AND AN ALTERED   
TITLE    3 GENERAL BASE FOR CATALYSIS                                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: BETA-LACTAMASE TEM;                                        
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: TEM-1 BETA-LACTAMASE;                                      
COMPND   5 SYNONYM: IRT-4, PENICILLINASE, TEM-1, TEM-16/CAZ-7, TEM-2, TEM-      
COMPND   6 24/CAZ-6, TEM-3, TEM-4, TEM-5, TEM-6, TEM-8/CAZ-2;                   
COMPND   7 EC: 3.5.2.6;                                                         
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 562;                                                 
SOURCE   4 GENE: BLA, BLAT-3, BLAT-4, BLAT-5, BLAT-6;                           
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3)                                 
KEYWDS    GLOBULAR, BETA-LACTAMASE, HYDROLASE                                   
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    V.STOJANOSKI,D.CHOW,L.HU,B.SANKARAN,H.GILBERT,B.V.V.PRASAD,T.PALZKILL 
REVDAT   5   16-OCT-24 4RX3    1       REMARK SEQADV                            
REVDAT   4   22-NOV-17 4RX3    1       REMARK                                   
REVDAT   3   06-MAY-15 4RX3    1       JRNL                                     
REVDAT   2   11-MAR-15 4RX3    1       JRNL                                     
REVDAT   1   04-MAR-15 4RX3    0                                                
JRNL        AUTH   V.STOJANOSKI,D.C.CHOW,L.HU,B.SANKARAN,H.F.GILBERT,           
JRNL        AUTH 2 B.V.PRASAD,T.PALZKILL                                        
JRNL        TITL   A TRIPLE MUTANT IN THE OMEGA-LOOP OF TEM-1 BETA-LACTAMASE    
JRNL        TITL 2 CHANGES THE SUBSTRATE PROFILE VIA A LARGE CONFORMATIONAL     
JRNL        TITL 3 CHANGE AND AN ALTERED GENERAL BASE FOR CATALYSIS.            
JRNL        REF    J.BIOL.CHEM.                  V. 290 10382 2015              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   25713062                                                     
JRNL        DOI    10.1074/JBC.M114.633438                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.39 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE: 1.8.4_1496)                   
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.39                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 30.54                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.920                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 121923                         
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.173                           
REMARK   3   R VALUE            (WORKING SET) : 0.172                           
REMARK   3   FREE R VALUE                     : 0.194                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.090                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 6207                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 30.5476 -  4.3151    0.99     3956   117  0.1497 0.1700        
REMARK   3     2  4.3151 -  3.4265    1.00     3884   203  0.1425 0.1524        
REMARK   3     3  3.4265 -  2.9938    1.00     3866   216  0.1631 0.1891        
REMARK   3     4  2.9938 -  2.7203    1.00     3902   179  0.1681 0.1904        
REMARK   3     5  2.7203 -  2.5254    1.00     3934   157  0.1664 0.1987        
REMARK   3     6  2.5254 -  2.3766    1.00     3865   224  0.1626 0.1727        
REMARK   3     7  2.3766 -  2.2576    1.00     3847   244  0.1644 0.1690        
REMARK   3     8  2.2576 -  2.1593    1.00     3895   178  0.1536 0.2132        
REMARK   3     9  2.1593 -  2.0762    1.00     3877   224  0.1571 0.1776        
REMARK   3    10  2.0762 -  2.0046    1.00     3825   238  0.1658 0.2061        
REMARK   3    11  2.0046 -  1.9419    1.00     3855   213  0.1655 0.1800        
REMARK   3    12  1.9419 -  1.8864    1.00     3880   227  0.1664 0.1922        
REMARK   3    13  1.8864 -  1.8368    1.00     3846   217  0.1784 0.1909        
REMARK   3    14  1.8368 -  1.7920    1.00     3861   213  0.1797 0.1851        
REMARK   3    15  1.7920 -  1.7512    1.00     3867   215  0.1808 0.2185        
REMARK   3    16  1.7512 -  1.7140    1.00     3881   199  0.1825 0.1948        
REMARK   3    17  1.7140 -  1.6797    1.00     3833   222  0.1849 0.2078        
REMARK   3    18  1.6797 -  1.6480    0.99     3918   206  0.1920 0.2403        
REMARK   3    19  1.6480 -  1.6186    0.99     3848   214  0.1825 0.1869        
REMARK   3    20  1.6186 -  1.5911    1.00     3846   164  0.1893 0.1996        
REMARK   3    21  1.5911 -  1.5655    0.99     3920   202  0.2001 0.1925        
REMARK   3    22  1.5655 -  1.5414    0.99     3765   229  0.2118 0.2189        
REMARK   3    23  1.5414 -  1.5187    0.99     3865   217  0.2238 0.2510        
REMARK   3    24  1.5187 -  1.4973    0.99     3802   221  0.2348 0.2683        
REMARK   3    25  1.4973 -  1.4771    0.99     3796   179  0.2357 0.2384        
REMARK   3    26  1.4771 -  1.4579    0.99     3879   212  0.2492 0.2749        
REMARK   3    27  1.4579 -  1.4397    0.98     3751   230  0.2585 0.2691        
REMARK   3    28  1.4397 -  1.4223    0.98     3808   206  0.2711 0.3007        
REMARK   3    29  1.4223 -  1.4058    0.99     3807   213  0.2808 0.2995        
REMARK   3    30  1.4058 -  1.3900    0.98     3837   228  0.2924 0.3193        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.150            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 18.260           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.007           2069                                  
REMARK   3   ANGLE     :  1.114           2800                                  
REMARK   3   CHIRALITY :  0.044            319                                  
REMARK   3   PLANARITY :  0.005            366                                  
REMARK   3   DIHEDRAL  : 14.227            789                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 4RX3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-DEC-14.                  
REMARK 100 THE DEPOSITION ID IS D_1000087903.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 20-JUN-14                          
REMARK 200  TEMPERATURE           (KELVIN) : 200.0                              
REMARK 200  PH                             : 5.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ALS                                
REMARK 200  BEAMLINE                       : 5.0.1                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.997                              
REMARK 200  MONOCHROMATOR                  : SINGLE CRYSTAL, CYLINDRICALLY      
REMARK 200                                   BENT, SI(220)                      
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          : AIMLESS                            
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 64012                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.390                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.540                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.0                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.06900                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 1.9000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.39                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.41                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.1                               
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         : 1.900                              
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: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 54.82                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.72                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.24M CITRATE, 25% W/V PEG 4,000, PH     
REMARK 280  5.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K                
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
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       29.46000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       44.38500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       30.07000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       44.38500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       29.46000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       30.07000            
REMARK 290   SMTRY3   4  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: MONOMERIC                         
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 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    MET A  69     -147.24     53.23                                   
REMARK 500    TYR A 105       85.19     59.79                                   
REMARK 500    LEU A 220     -126.08   -101.19                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FLC A 301                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 4RVA   RELATED DB: PDB                                   
REMARK 900 DIFFERS BY 4RVA BY S70G/P201L SUBSTITUTIONS                          
REMARK 900 RELATED ID: 4RX2   RELATED DB: PDB                                   
REMARK 900 DIFFERS BY 4RX2 BY S70G/T182M SUBSTITUTIONS                          
DBREF  4RX3 A   26   290  UNP    P62593   BLAT_ECOLX      24    286             
SEQADV 4RX3 GLY A   70  UNP  P62593    SER    68 ENGINEERED MUTATION            
SEQADV 4RX3 TYR A  165  UNP  P62593    TRP   163 ENGINEERED MUTATION            
SEQADV 4RX3 TYR A  166  UNP  P62593    GLU   164 ENGINEERED MUTATION            
SEQADV 4RX3 GLY A  167  UNP  P62593    PRO   165 ENGINEERED MUTATION            
SEQRES   1 A  263  HIS PRO GLU THR LEU VAL LYS VAL LYS ASP ALA GLU ASP          
SEQRES   2 A  263  GLN LEU GLY ALA ARG VAL GLY TYR ILE GLU LEU ASP LEU          
SEQRES   3 A  263  ASN SER GLY LYS ILE LEU GLU SER PHE ARG PRO GLU GLU          
SEQRES   4 A  263  ARG PHE PRO MET MET GLY THR PHE LYS VAL LEU LEU CYS          
SEQRES   5 A  263  GLY ALA VAL LEU SER ARG VAL ASP ALA GLY GLN GLU GLN          
SEQRES   6 A  263  LEU GLY ARG ARG ILE HIS TYR SER GLN ASN ASP LEU VAL          
SEQRES   7 A  263  GLU TYR SER PRO VAL THR GLU LYS HIS LEU THR ASP GLY          
SEQRES   8 A  263  MET THR VAL ARG GLU LEU CYS SER ALA ALA ILE THR MET          
SEQRES   9 A  263  SER ASP ASN THR ALA ALA ASN LEU LEU LEU THR THR ILE          
SEQRES  10 A  263  GLY GLY PRO LYS GLU LEU THR ALA PHE LEU HIS ASN MET          
SEQRES  11 A  263  GLY ASP HIS VAL THR ARG LEU ASP ARG TYR TYR GLY GLU          
SEQRES  12 A  263  LEU ASN GLU ALA ILE PRO ASN ASP GLU ARG ASP THR THR          
SEQRES  13 A  263  MET PRO ALA ALA MET ALA THR THR LEU ARG LYS LEU LEU          
SEQRES  14 A  263  THR GLY GLU LEU LEU THR LEU ALA SER ARG GLN GLN LEU          
SEQRES  15 A  263  ILE ASP TRP MET GLU ALA ASP LYS VAL ALA GLY PRO LEU          
SEQRES  16 A  263  LEU ARG SER ALA LEU PRO ALA GLY TRP PHE ILE ALA ASP          
SEQRES  17 A  263  LYS SER GLY ALA GLY GLU ARG GLY SER ARG GLY ILE ILE          
SEQRES  18 A  263  ALA ALA LEU GLY PRO ASP GLY LYS PRO SER ARG ILE VAL          
SEQRES  19 A  263  VAL ILE TYR THR THR GLY SER GLN ALA THR MET ASP GLU          
SEQRES  20 A  263  ARG ASN ARG GLN ILE ALA GLU ILE GLY ALA SER LEU ILE          
SEQRES  21 A  263  LYS HIS TRP                                                  
HET    FLC  A 301      13                                                       
HETNAM     FLC CITRATE ANION                                                    
FORMUL   2  FLC    C6 H5 O7 3-                                                  
FORMUL   3  HOH   *430(H2 O)                                                    
HELIX    1   1 HIS A   26  GLY A   41  1                                  16    
HELIX    2   2 THR A   71  ALA A   86  1                                  16    
HELIX    3   3 SER A   98  LEU A  102  5                                   5    
HELIX    4   4 VAL A  108  HIS A  112  5                                   5    
HELIX    5   5 VAL A  119  MET A  129  1                                  11    
HELIX    6   6 ASP A  131  ILE A  142  1                                  12    
HELIX    7   7 GLY A  144  MET A  155  1                                  12    
HELIX    8   8 MET A  182  GLY A  196  1                                  15    
HELIX    9   9 THR A  200  ALA A  213  1                                  14    
HELIX   10  10 LEU A  220  LEU A  225  5                                   6    
HELIX   11  11 THR A  271  HIS A  289  1                                  19    
SHEET    1   A 5 ILE A  56  PHE A  60  0                                        
SHEET    2   A 5 ARG A  43  ASP A  50 -1  N  TYR A  46   O  PHE A  60           
SHEET    3   A 5 ARG A 259  THR A 266 -1  O  ILE A 260   N  LEU A  49           
SHEET    4   A 5 ARG A 244  GLY A 251 -1  N  ILE A 246   O  ILE A 263           
SHEET    5   A 5 PHE A 230  ALA A 237 -1  N  PHE A 230   O  GLY A 251           
SHEET    1   B 2 PHE A  66  PRO A  67  0                                        
SHEET    2   B 2 THR A 180  THR A 181 -1  O  THR A 181   N  PHE A  66           
SHEET    1   C 2 ARG A  94  ILE A  95  0                                        
SHEET    2   C 2 MET A 117  THR A 118 -1  O  MET A 117   N  ILE A  95           
SSBOND   1 CYS A   77    CYS A  123                          1555   1555  2.10  
SITE     1 AC1 17 GLU A  28  MET A  69  GLY A  70  LYS A  73                    
SITE     2 AC1 17 TYR A 105  SER A 130  ASN A 132  TYR A 166                    
SITE     3 AC1 17 GLY A 236  ALA A 237  LYS A 288  HIS A 289                    
SITE     4 AC1 17 HOH A 403  HOH A 422  HOH A 432  HOH A 543                    
SITE     5 AC1 17 HOH A 609                                                     
CRYST1   58.920   60.140   88.770  90.00  90.00  90.00 P 21 21 21    4          
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      0.016972  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.016628  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.011265        0.00000