HEADER    HYDROLASE (METALLOPROTEINASE)           16-SEP-95   1AKL              
TITLE     ALKALINE PROTEASE FROM PSEUDOMONAS AERUGINOSA IFO3080                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ALKALINE PROTEASE;                                         
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 3.4.24.40                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: PSEUDOMONAS AERUGINOSA;                         
SOURCE   3 ORGANISM_TAXID: 287;                                                 
SOURCE   4 STRAIN: IFO3080                                                      
KEYWDS    HYDROLASE (METALLOPROTEINASE)                                         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    H.MIYATAKE,Y.HATA,T.FUJII,K.HAMADA,K.MORIHARA,Y.KATSUBE               
REVDAT   6   07-FEB-24 1AKL    1       REMARK LINK                              
REVDAT   5   11-OCT-17 1AKL    1       REMARK                                   
REVDAT   4   12-MAR-14 1AKL    1       REMARK                                   
REVDAT   3   24-FEB-09 1AKL    1       VERSN                                    
REVDAT   2   01-APR-03 1AKL    1       JRNL                                     
REVDAT   1   08-MAR-96 1AKL    0                                                
JRNL        AUTH   H.MIYATAKE,Y.HATA,T.FUJII,K.HAMADA,K.MORIHARA,Y.KATSUBE      
JRNL        TITL   CRYSTAL STRUCTURE OF THE UNLIGANDED ALKALINE PROTEASE FROM   
JRNL        TITL 2 PSEUDOMONAS AERUGINOSA IFO3080 AND ITS CONFORMATIONAL        
JRNL        TITL 3 CHANGES ON LIGAND BINDING.                                   
JRNL        REF    J.BIOCHEM.(TOKYO)             V. 118   474 1995              
JRNL        REFN                   ISSN 0021-924X                               
JRNL        PMID   8690704                                                      
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   H.MIYATAKE,Y.HATA,T.FUJII,K.MORIHARA,Y.KATSUBE               
REMARK   1  TITL   CRYSTAL STRUCTURE DETERMINATION OF ALKALINE PROTEASE FROM    
REMARK   1  TITL 2 PSEUDOMONAS AERUGINOSA STRAIN PAO1                           
REMARK   1  REF    PHOTON FACTORY ACTIVITY       V.  11   108 1993              
REMARK   1  REF  2 REPORT                                                       
REMARK   1  REFN                   ISSN 0912-1803                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.1                                           
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 8.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 75.1                           
REMARK   3   NUMBER OF REFLECTIONS             : 33698                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.197                           
REMARK   3   FREE R VALUE                     : 0.225                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.000                          
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3505                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 9                                       
REMARK   3   SOLVENT ATOMS            : 331                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 38.12                          
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  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.30                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.010                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.595                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 26.12                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.201                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1AKL COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000170932.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 25-MAY-93                          
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : PHOTON FACTORY                     
REMARK 200  BEAMLINE                       : BL-6A                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.00                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : WEIS                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 44289                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.05800                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: X-PLOR 3.1                                            
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 65.03                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.52                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
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       38.58000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       25.56000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       88.34500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       25.56000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       38.58000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       88.34500            
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 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    ASN A  66     -169.89   -113.01                                   
REMARK 500    PRO A 140       20.69    -74.70                                   
REMARK 500    ASP A 189      103.55     77.27                                   
REMARK 500    TYR A 190      -47.78   -170.59                                   
REMARK 500    ALA A 192     -152.16   -158.29                                   
REMARK 500    GLU A 206       20.27    -79.84                                   
REMARK 500    ARG A 209        6.03    -66.47                                   
REMARK 500    LYS A 308       -3.70     76.26                                   
REMARK 500    ASN A 343     -162.91   -111.09                                   
REMARK 500    SER A 384       60.97   -159.06                                   
REMARK 500    ARG A 393        5.19    -64.29                                   
REMARK 500    ASP A 394       45.81   -166.92                                   
REMARK 500    GLN A 399      -52.39   -140.86                                   
REMARK 500    TYR A 434      108.96    179.08                                   
REMARK 500    LYS A 439       32.11     71.59                                   
REMARK 500    ASP A 450       30.61    -90.88                                   
REMARK 500    ALA A 451       19.11     57.65                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 500  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A 176   NE2                                                    
REMARK 620 2 HIS A 180   NE2  99.6                                              
REMARK 620 3 HIS A 186   NE2 104.0  95.0                                        
REMARK 620 4 HOH A1061   O   118.5 114.3 121.0                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 501  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ARG A 253   O                                                      
REMARK 620 2 GLY A 255   O    98.2                                              
REMARK 620 3 THR A 257   OG1  95.8  79.0                                        
REMARK 620 4 ASP A 285   OD1  80.9 149.8 131.2                                  
REMARK 620 5 ASP A 285   OD2  90.0 159.1  81.1  50.4                            
REMARK 620 6 GLY A 287   O    85.1  84.2 163.2  65.6 115.8                      
REMARK 620 7 ASP A 290   OD1 170.5  90.6  82.1  93.4  80.4  99.6                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 502  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY A 288   O                                                      
REMARK 620 2 ASP A 290   OD2  75.1                                              
REMARK 620 3 THR A 327   O   165.9  99.4                                        
REMARK 620 4 GLU A 329   OE1  82.8  86.9  84.0                                  
REMARK 620 5 GLU A 329   OE2  90.1 137.0  85.3  50.9                            
REMARK 620 6 HOH A1028   O   110.6  72.8  79.3 151.0 148.7                      
REMARK 620 7 HOH A1252   O    95.0 142.7  97.0 128.2  77.5  77.6                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 503  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY A 334   O                                                      
REMARK 620 2 GLY A 336   O    96.5                                              
REMARK 620 3 ASP A 338   OD2  82.2  87.0                                        
REMARK 620 4 GLY A 351   O    91.8 171.1  90.6                                  
REMARK 620 5 ALA A 353   O    93.7  93.2 176.0  89.8                            
REMARK 620 6 ASP A 356   OD1 167.8  87.8  86.6  83.5  97.5                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 506  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN A 343   O                                                      
REMARK 620 2 VAL A 345   O    91.4                                              
REMARK 620 3 ASN A 347   OD1  89.0  80.7                                        
REMARK 620 4 GLY A 360   O    95.0 170.7  92.7                                  
REMARK 620 5 LEU A 362   O    94.6  88.8 168.9  97.4                            
REMARK 620 6 ASP A 365   OD1 171.3  84.9  82.7  87.8  93.2                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 504  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY A 352   O                                                      
REMARK 620 2 GLY A 354   O   104.8                                              
REMARK 620 3 ASP A 356   OD2  82.1  80.1                                        
REMARK 620 4 GLY A 369   O    83.3 166.7  90.7                                  
REMARK 620 5 ALA A 371   O    95.3  83.5 162.2 106.6                            
REMARK 620 6 ASP A 374   OD2 141.0 113.3 111.8  61.1  81.3                      
REMARK 620 7 ASP A 374   OD1 162.6  76.7  81.1  92.5 102.1  44.9                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 507  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY A 361   O                                                      
REMARK 620 2 GLY A 363   O   104.8                                              
REMARK 620 3 ASP A 365   OD2  89.6  83.3                                        
REMARK 620 4 GLU A 383   O    93.9 100.4 174.0                                  
REMARK 620 5 ASP A 390   OD1 164.5  84.6  79.1  96.5                            
REMARK 620 6 HOH A1313   O    78.3 160.3  77.3  98.7  88.7                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 505  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY A 370   O                                                      
REMARK 620 2 GLY A 372   O    97.8                                              
REMARK 620 3 ASP A 374   OD2  68.2  74.0                                        
REMARK 620 4 GLN A 399   OE1 124.3  71.4 144.4                                  
REMARK 620 5 ASP A 400   OD1 158.2  86.5  92.8  77.3                            
REMARK 620 6 HOH A1160   O    81.5 146.7  74.9 135.9  83.4                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 508  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 446   OD1                                                    
REMARK 620 2 SER A 448   OG   80.7                                              
REMARK 620 3 ASP A 450   OD1  95.0  89.9                                        
REMARK 620 4 ASP A 450   OD2 113.9  60.6  40.4                                  
REMARK 620 5 HIS A 452   O    66.2 146.9  90.7 130.7                            
REMARK 620 6 ASP A 454   OD1  66.7  85.9 161.6 144.8  83.2                      
REMARK 620 7 ASP A 454   OD2 112.1  78.7 148.1 110.0 115.0  47.9                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: CAT                                                 
REMARK 800 EVIDENCE_CODE: AUTHOR                                                
REMARK 800 SITE_DESCRIPTION: THE ZINC ION AT THE BOTTOM OF CATALYTIC CLEFT      
REMARK 800  HAS FIVE LIGANDS                                                    
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 500                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 501                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 502                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 503                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 504                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 505                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 506                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 507                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 508                  
DBREF  1AKL A    1   470  UNP    Q03023   APRA_PSEAE      10    479             
SEQRES   1 A  470  GLY ARG SER ASP ALA TYR THR GLN VAL ASP ASN PHE LEU          
SEQRES   2 A  470  HIS ALA TYR ALA ARG GLY GLY ASP GLU LEU VAL ASN GLY          
SEQRES   3 A  470  HIS PRO SER TYR THR VAL ASP GLN ALA ALA GLU GLN ILE          
SEQRES   4 A  470  LEU ARG GLU GLN ALA SER TRP GLN LYS ALA PRO GLY ASP          
SEQRES   5 A  470  SER VAL LEU THR LEU SER TYR SER PHE LEU THR LYS PRO          
SEQRES   6 A  470  ASN ASP PHE PHE ASN THR PRO TRP LYS TYR VAL SER ASP          
SEQRES   7 A  470  ILE TYR SER LEU GLY LYS PHE SER ALA PHE SER ALA GLN          
SEQRES   8 A  470  GLN GLN ALA GLN ALA LYS LEU SER LEU GLN SER TRP SER          
SEQRES   9 A  470  ASP VAL THR ASN ILE HIS PHE VAL ASP ALA GLY GLN GLY          
SEQRES  10 A  470  ASP GLN GLY ASP LEU THR PHE GLY ASN PHE SER SER SER          
SEQRES  11 A  470  VAL GLY GLY ALA ALA PHE ALA PHE LEU PRO ASP VAL PRO          
SEQRES  12 A  470  ASP ALA LEU LYS GLY GLN SER TRP TYR LEU ILE ASN SER          
SEQRES  13 A  470  SER TYR SER ALA ASN VAL ASN PRO ALA ASN GLY ASN TYR          
SEQRES  14 A  470  GLY ARG GLN THR LEU THR HIS GLU ILE GLY HIS THR LEU          
SEQRES  15 A  470  GLY LEU SER HIS PRO GLY ASP TYR ASN ALA GLY GLU GLY          
SEQRES  16 A  470  ASP PRO THR TYR ALA ASP ALA THR TYR ALA GLU ASP THR          
SEQRES  17 A  470  ARG ALA TYR SER VAL MET SER TYR TRP GLU GLU GLN ASN          
SEQRES  18 A  470  THR GLY GLN ASP PHE LYS GLY ALA TYR SER SER ALA PRO          
SEQRES  19 A  470  LEU LEU ASP ASP ILE ALA ALA ILE GLN LYS LEU TYR GLY          
SEQRES  20 A  470  ALA ASN LEU THR THR ARG THR GLY ASP THR VAL TYR GLY          
SEQRES  21 A  470  PHE ASN SER ASN THR GLU ARG ASP PHE TYR SER ALA THR          
SEQRES  22 A  470  SER SER SER SER LYS LEU VAL PHE SER VAL TRP ASP ALA          
SEQRES  23 A  470  GLY GLY ASN ASP THR LEU ASP PHE SER GLY PHE SER GLN          
SEQRES  24 A  470  ASN GLN LYS ILE ASN LEU ASN GLU LYS ALA LEU SER ASP          
SEQRES  25 A  470  VAL GLY GLY LEU LYS GLY ASN VAL SER ILE ALA ALA GLY          
SEQRES  26 A  470  VAL THR VAL GLU ASN ALA ILE GLY GLY SER GLY SER ASP          
SEQRES  27 A  470  LEU LEU ILE GLY ASN ASP VAL ALA ASN VAL LEU LYS GLY          
SEQRES  28 A  470  GLY ALA GLY ASN ASP ILE LEU TYR GLY GLY LEU GLY ALA          
SEQRES  29 A  470  ASP GLN LEU TRP GLY GLY ALA GLY ALA ASP THR PHE VAL          
SEQRES  30 A  470  TYR GLY ASP ILE ALA GLU SER SER ALA ALA ALA PRO ASP          
SEQRES  31 A  470  THR LEU ARG ASP PHE VAL SER GLY GLN ASP LYS ILE ASP          
SEQRES  32 A  470  LEU SER GLY LEU ASP ALA PHE VAL ASN GLY GLY LEU VAL          
SEQRES  33 A  470  LEU GLN TYR VAL ASP ALA PHE ALA GLY LYS ALA GLY GLN          
SEQRES  34 A  470  ALA ILE LEU SER TYR ASP ALA ALA SER LYS ALA GLY SER          
SEQRES  35 A  470  LEU ALA ILE ASP PHE SER GLY ASP ALA HIS ALA ASP PHE          
SEQRES  36 A  470  ALA ILE ASN LEU ILE GLY GLN ALA THR GLN ALA ASP ILE          
SEQRES  37 A  470  VAL VAL                                                      
HET     ZN  A 500       1                                                       
HET     CA  A 501       1                                                       
HET     CA  A 502       1                                                       
HET     CA  A 503       1                                                       
HET     CA  A 504       1                                                       
HET     CA  A 505       1                                                       
HET     CA  A 506       1                                                       
HET     CA  A 507       1                                                       
HET     CA  A 508       1                                                       
HETNAM      ZN ZINC ION                                                         
HETNAM      CA CALCIUM ION                                                      
FORMUL   2   ZN    ZN 2+                                                        
FORMUL   3   CA    8(CA 2+)                                                     
FORMUL  11  HOH   *331(H2 O)                                                    
HELIX    1   1 ASP A    4  HIS A   14  1                                  11    
HELIX    2   2 VAL A   32  ILE A   39  1                                   8    
HELIX    3   3 ASP A   67  ASN A   70  1                                   4    
HELIX    4   4 PRO A   72  LYS A   74  5                                   3    
HELIX    5   5 ALA A   90  SER A  104  1                                  15    
HELIX    6   6 TYR A  169  LEU A  182  1                                  14    
HELIX    7   7 TYR A  199  ASP A  201  5                                   3    
HELIX    8   8 GLU A  219  THR A  222  5                                   4    
HELIX    9   9 LEU A  236  TYR A  246  1                                  11    
HELIX   10  10 ASP A  268  TYR A  270  5                                   3    
HELIX   11  11 ILE A  381  SER A  384  5                                   4    
HELIX   12  12 ASP A  408  VAL A  411  1                                   4    
SHEET    1   A 5 ILE A 109  ASP A 113  0                                        
SHEET    2   A 5 LEU A  55  PHE A  61  1  N  LEU A  55   O  HIS A 110           
SHEET    3   A 5 LEU A 122  PHE A 127  1  N  LEU A 122   O  SER A  60           
SHEET    4   A 5 GLN A 149  LEU A 153  1  N  SER A 150   O  THR A 123           
SHEET    5   A 5 ALA A 135  ALA A 137 -1  N  PHE A 136   O  TRP A 151           
SHEET    1   B 5 VAL A 258  GLY A 260  0                                        
SHEET    2   B 5 THR A 291  ASP A 293  1  N  THR A 291   O  TYR A 259           
SHEET    3   B 5 ASN A 330  ILE A 332  1  N  ASN A 330   O  LEU A 292           
SHEET    4   B 5 VAL A 348  LYS A 350  1  N  VAL A 348   O  ALA A 331           
SHEET    5   B 5 GLN A 366  TRP A 368  1  N  GLN A 366   O  LEU A 349           
SHEET    1   C 2 PHE A 281  VAL A 283  0                                        
SHEET    2   C 2 VAL A 320  ILE A 322  1  N  SER A 321   O  PHE A 281           
SHEET    1   D 5 LYS A 302  ASN A 304  0                                        
SHEET    2   D 5 LEU A 339  ILE A 341  1  N  LEU A 339   O  ILE A 303           
SHEET    3   D 5 ILE A 357  TYR A 359  1  N  ILE A 357   O  LEU A 340           
SHEET    4   D 5 THR A 375  VAL A 377  1  N  THR A 375   O  LEU A 358           
SHEET    5   D 5 LYS A 401  ASP A 403  1  N  LYS A 401   O  PHE A 376           
SHEET    1   E 4 ASP A 390  LEU A 392  0                                        
SHEET    2   E 4 PHE A 455  ILE A 460  1  N  ASN A 458   O  ASP A 390           
SHEET    3   E 4 ALA A 440  ASP A 446 -1  N  ILE A 445   O  PHE A 455           
SHEET    4   E 4 GLN A 429  ASP A 435 -1  N  ASP A 435   O  ALA A 440           
LINK         NE2 HIS A 176                ZN    ZN A 500     1555   1555  2.22  
LINK         NE2 HIS A 180                ZN    ZN A 500     1555   1555  2.20  
LINK         NE2 HIS A 186                ZN    ZN A 500     1555   1555  2.17  
LINK         O   ARG A 253                CA    CA A 501     1555   1555  2.25  
LINK         O   GLY A 255                CA    CA A 501     1555   1555  2.30  
LINK         OG1 THR A 257                CA    CA A 501     1555   1555  2.30  
LINK         OD1 ASP A 285                CA    CA A 501     1555   1555  2.58  
LINK         OD2 ASP A 285                CA    CA A 501     1555   1555  2.52  
LINK         O   GLY A 287                CA    CA A 501     1555   1555  2.35  
LINK         O   GLY A 288                CA    CA A 502     1555   1555  2.30  
LINK         OD1 ASP A 290                CA    CA A 501     1555   1555  2.39  
LINK         OD2 ASP A 290                CA    CA A 502     1555   1555  2.50  
LINK         O   THR A 327                CA    CA A 502     1555   1555  2.38  
LINK         OE1 GLU A 329                CA    CA A 502     1555   1555  2.51  
LINK         OE2 GLU A 329                CA    CA A 502     1555   1555  2.56  
LINK         O   GLY A 334                CA    CA A 503     1555   1555  2.21  
LINK         O   GLY A 336                CA    CA A 503     1555   1555  2.24  
LINK         OD2 ASP A 338                CA    CA A 503     1555   1555  2.66  
LINK         O   ASN A 343                CA    CA A 506     1555   1555  2.29  
LINK         O   VAL A 345                CA    CA A 506     1555   1555  2.33  
LINK         OD1 ASN A 347                CA    CA A 506     1555   1555  2.41  
LINK         O   GLY A 351                CA    CA A 503     1555   1555  2.30  
LINK         O   GLY A 352                CA    CA A 504     1555   1555  2.33  
LINK         O   ALA A 353                CA    CA A 503     1555   1555  2.30  
LINK         O   GLY A 354                CA    CA A 504     1555   1555  2.39  
LINK         OD1 ASP A 356                CA    CA A 503     1555   1555  2.52  
LINK         OD2 ASP A 356                CA    CA A 504     1555   1555  2.46  
LINK         O   GLY A 360                CA    CA A 506     1555   1555  2.26  
LINK         O   GLY A 361                CA    CA A 507     1555   1555  2.38  
LINK         O   LEU A 362                CA    CA A 506     1555   1555  2.37  
LINK         O   GLY A 363                CA    CA A 507     1555   1555  2.30  
LINK         OD1 ASP A 365                CA    CA A 506     1555   1555  2.59  
LINK         OD2 ASP A 365                CA    CA A 507     1555   1555  2.45  
LINK         O   GLY A 369                CA    CA A 504     1555   1555  2.19  
LINK         O   GLY A 370                CA    CA A 505     1555   1555  2.46  
LINK         O   ALA A 371                CA    CA A 504     1555   1555  2.29  
LINK         O   GLY A 372                CA    CA A 505     1555   1555  2.24  
LINK         OD2 ASP A 374                CA    CA A 504     1555   1555  3.09  
LINK         OD1 ASP A 374                CA    CA A 504     1555   1555  2.46  
LINK         OD2 ASP A 374                CA    CA A 505     1555   1555  2.77  
LINK         O   GLU A 383                CA    CA A 507     1555   1555  2.24  
LINK         OD1 ASP A 390                CA    CA A 507     1555   1555  2.46  
LINK         OE1 GLN A 399                CA    CA A 505     1555   1555  2.85  
LINK         OD1 ASP A 400                CA    CA A 505     1555   1555  2.67  
LINK         OD1 ASP A 446                CA    CA A 508     1555   1555  2.69  
LINK         OG  SER A 448                CA    CA A 508     1555   1555  2.46  
LINK         OD1 ASP A 450                CA    CA A 508     1555   1555  2.74  
LINK         OD2 ASP A 450                CA    CA A 508     1555   1555  3.36  
LINK         O   HIS A 452                CA    CA A 508     1555   1555  2.32  
LINK         OD1 ASP A 454                CA    CA A 508     1555   1555  2.70  
LINK         OD2 ASP A 454                CA    CA A 508     1555   1555  2.75  
LINK        ZN    ZN A 500                 O   HOH A1061     1555   1555  2.36  
LINK        CA    CA A 502                 O   HOH A1028     1555   1555  2.46  
LINK        CA    CA A 502                 O   HOH A1252     1555   1555  2.33  
LINK        CA    CA A 505                 O   HOH A1160     1555   1555  2.39  
LINK        CA    CA A 507                 O   HOH A1313     1555   1555  2.33  
SITE     1 CAT  5 HIS A 176  HIS A 180  HIS A 186  TYR A 216                    
SITE     2 CAT  5 HOH A1061                                                     
SITE     1 AC1  5 HIS A 176  HIS A 180  HIS A 186  TYR A 216                    
SITE     2 AC1  5 HOH A1061                                                     
SITE     1 AC2  6 ARG A 253  GLY A 255  THR A 257  ASP A 285                    
SITE     2 AC2  6 GLY A 287  ASP A 290                                          
SITE     1 AC3  6 GLY A 288  ASP A 290  THR A 327  GLU A 329                    
SITE     2 AC3  6 HOH A1028  HOH A1252                                          
SITE     1 AC4  6 GLY A 334  GLY A 336  ASP A 338  GLY A 351                    
SITE     2 AC4  6 ALA A 353  ASP A 356                                          
SITE     1 AC5  8 GLY A 352  ALA A 353  GLY A 354  ASP A 356                    
SITE     2 AC5  8 GLY A 369  GLY A 370  ALA A 371  ASP A 374                    
SITE     1 AC6  6 GLY A 370  GLY A 372  ASP A 374  GLN A 399                    
SITE     2 AC6  6 ASP A 400  HOH A1160                                          
SITE     1 AC7  6 ASN A 343  VAL A 345  ASN A 347  GLY A 360                    
SITE     2 AC7  6 LEU A 362  ASP A 365                                          
SITE     1 AC8  6 GLY A 361  GLY A 363  ASP A 365  GLU A 383                    
SITE     2 AC8  6 ASP A 390  HOH A1313                                          
SITE     1 AC9  5 ASP A 446  SER A 448  ASP A 450  HIS A 452                    
SITE     2 AC9  5 ASP A 454                                                     
CRYST1   77.160  176.690   51.120  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      0.012960  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.005660  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.019562        0.00000