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Database: PDB
Entry: 3M7U
LinkDB: 3M7U
Original site: 3M7U 
HEADER    HYDROLASE                               17-MAR-10   3M7U              
TITLE     CRYSTAL STRUCTURE OF ALPHA-LYTIC PROTEASE SB1+2 R64A/E182Q MUTANT     
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ALPHA-LYTIC PROTEASE;                                      
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: MATURE PROTEASE DOMAIN (RESIDUES 1-198);                   
COMPND   5 SYNONYM: ALPHA-LYTIC ENDOPEPTIDASE;                                  
COMPND   6 EC: 3.4.21.12;                                                       
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MUTATION: YES;                                                       
COMPND   9 MOL_ID: 2;                                                           
COMPND  10 MOLECULE: SELF-PROTEOLYSIS PRODUCT (RESIDUES 184-187);               
COMPND  11 CHAIN: B;                                                            
COMPND  12 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: LYSOBACTER ENZYMOGENES;                         
SOURCE   3 ORGANISM_TAXID: 69;                                                  
SOURCE   4 GENE: ALPHA-LP, LYSOBACTER;                                          
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PALP12;                                   
SOURCE   9 MOL_ID: 2;                                                           
SOURCE  10 SYNTHETIC: YES                                                       
KEYWDS    HYDROLASE, DISULFIDE BOND, PROTEASE, SERINE PROTEASE, ZYMOGEN         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.A.AGARD,F.P.ERCIYAS BAILEY,C.A.WADDLING                             
REVDAT   3   06-SEP-23 3M7U    1       REMARK                                   
REVDAT   2   06-OCT-21 3M7U    1       REMARK SEQADV                            
REVDAT   1   09-FEB-11 3M7U    0                                                
JRNL        AUTH   F.P.ERCIYAS BAILEY,C.A.WADDLING,D.A.AGARD                    
JRNL        TITL   QUANTIFYING PROTEIN UNFOLDING COOPERATIVITY WITH ACID        
JRNL        TITL 2 SENSITIVE PROBES: INTERDOMAIN SALT BRIDGE CONTRIBUTIONS TO   
JRNL        TITL 3 UNFOLDING COOPERATIVITY ARE COMBINED EFFICIENTLY IN          
JRNL        TITL 4 ALPHA-LYTIC PROTEASE                                         
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   C.N.FUHRMANN,B.A.KELCH,N.OTA,D.A.AGARD                       
REMARK   1  TITL   THE 0.83 A RESOLUTION CRYSTAL STRUCTURE OF ALPHA-LYTIC       
REMARK   1  TITL 2 PROTEASE REVEALS THE DETAILED STRUCTURE OF THE ACTIVE SITE   
REMARK   1  TITL 3 AND IDENTIFIES A SOURCE OF CONFORMATIONAL STRAIN.            
REMARK   1  REF    J.MOL.BIOL.                   V. 338   999 2004              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1  PMID   15111063                                                     
REMARK   1  DOI    10.1016/J.JMB.2004.03.018                                    
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   S.D.RADER,D.A.AGARD                                          
REMARK   1  TITL   CONFORMATIONAL SUBSTATES IN ENZYME MECHANISM: THE 120 K      
REMARK   1  TITL 2 STRUCTURE OF ALPHA-LYTIC PROTEASE AT 1.5 A RESOLUTION.       
REMARK   1  REF    PROTEIN SCI.                  V.   6  1375 1997              
REMARK   1  REFN                   ISSN 0961-8368                               
REMARK   1  PMID   9232638                                                      
REMARK   1  DOI    10.1002/PRO.5560060701                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.05 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE: DEV_328)                      
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 : TWIN_LSQ_F                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.05                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 46.20                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.330                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 98.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 91149                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.141                           
REMARK   3   R VALUE            (WORKING SET) : 0.141                           
REMARK   3   FREE R VALUE                     : 0.164                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 2.220                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2022                            
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 14.6012 -  2.5273    0.98     6750   153  0.0983 0.1322        
REMARK   3     2  2.5273 -  2.0076    0.98     6536   148  0.1061 0.1288        
REMARK   3     3  2.0076 -  1.7543    0.98     6496   145  0.1215 0.1580        
REMARK   3     4  1.7543 -  1.5942    0.98     6430   148  0.1357 0.1544        
REMARK   3     5  1.5942 -  1.4800    0.98     6467   143  0.1430 0.1496        
REMARK   3     6  1.4800 -  1.3928    0.98     6410   142  0.1502 0.1621        
REMARK   3     7  1.3928 -  1.3231    0.97     6384   147  0.1565 0.1873        
REMARK   3     8  1.3231 -  1.2656    0.97     6383   145  0.1696 0.1913        
REMARK   3     9  1.2656 -  1.2169    0.97     6332   140  0.1783 0.2156        
REMARK   3    10  1.2169 -  1.1749    0.97     6330   142  0.1964 0.2088        
REMARK   3    11  1.1749 -  1.1382    0.97     6328   138  0.2193 0.2290        
REMARK   3    12  1.1382 -  1.1056    0.95     6235   142  0.2542 0.2495        
REMARK   3    13  1.1056 -  1.0766    0.93     6064   138  0.3224 0.3210        
REMARK   3    14  1.0766 -  1.0500    0.90     5876   135  0.3919 0.4479        
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              : 0.42                                          
REMARK   3   B_SOL              : 63.33                                         
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : NULL             
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 16.450           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 8.97                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 13.78                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.47050                                              
REMARK   3    B22 (A**2) : 0.00000                                              
REMARK   3    B33 (A**2) : 0.00000                                              
REMARK   3    B12 (A**2) : 0.47050                                              
REMARK   3    B13 (A**2) : -0.99330                                             
REMARK   3    B23 (A**2) : 0.00000                                              
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      :  0.006           1562                                  
REMARK   3   ANGLE     :  1.109           2133                                  
REMARK   3   CHIRALITY :  0.066            241                                  
REMARK   3   PLANARITY :  0.004            288                                  
REMARK   3   DIHEDRAL  : 13.513            541                                  
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 3M7U COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-MAR-10.                  
REMARK 100 THE DEPOSITION ID IS D_1000058217.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 22-OCT-09                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 8.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ALS                                
REMARK 200  BEAMLINE                       : 8.3.1                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.11588                            
REMARK 200  MONOCHROMATOR                  : KOHZU: DOUBLE CRYSTAL SI(111)      
REMARK 200  OPTICS                         : DOUBLE CRYSTAL SI(111)             
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 91149                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.030                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 46.196                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.7                               
REMARK 200  DATA REDUNDANCY                : 33.10                              
REMARK 200  R MERGE                    (I) : 0.12000                            
REMARK 200  R SYM                      (I) : 0.12000                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 118.4000                           
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.03                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.05                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 18.10                              
REMARK 200  R MERGE FOR SHELL          (I) : 0.64400                            
REMARK 200  R SYM FOR SHELL            (I) : 0.64400                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 9.500                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHENIX DEV_328                                        
REMARK 200 STARTING MODEL: PDB ENTRY 1SSX                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 49.45                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.43                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 1.3 M LITHIUM SULFATE, 20 MM TRIS        
REMARK 280  SULFATE, PH 8.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+2/3                                            
REMARK 290       3555   -X+Y,-X,Z+1/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+1/3                                           
REMARK 290       6555   -X,-X+Y,-Z+2/3                                          
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       53.23733            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       26.61867            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       26.61867            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       53.23733            
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: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 1330 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 7970 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -53.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 211  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 643  LIES ON A SPECIAL POSITION.                          
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    HOH A   295     O    HOH A   374              2.01            
REMARK 500   O    HOH A   258     O    HOH A   304              2.08            
REMARK 500   O    HOH A   335     O    HOH A   512              2.11            
REMARK 500   O    HOH A   382     O    HOH A   392              2.12            
REMARK 500   O    HOH A   319     O    HOH A   555              2.12            
REMARK 500   O    HOH A   430     O    HOH A   712              2.16            
REMARK 500   O    HOH A   310     O    HOH A   409              2.18            
REMARK 500   O    HOH A   292     O    HOH A   686              2.18            
REMARK 500   O    HOH A   268     O    HOH A   501              2.19            
REMARK 500   O    HOH A   296     O    HOH A   341              2.19            
REMARK 500   O    HOH A   303     O    HOH A   356              2.19            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A   456     O    HOH A   633     6444     2.19            
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    ALA A  14      -91.30   -127.88                                   
REMARK 500    ASN A  41       -5.57     85.39                                   
REMARK 500    PRO A  60     -152.73    -77.69                                   
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 SO4 A 1001                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1002                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1003                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1004                
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3M7T   RELATED DB: PDB                                   
REMARK 900 SB2+3 ALPHA-LYTIC PROTEASE MUTANT AT 1.55A RESOLUTION                
REMARK 900 RELATED ID: 1SSX   RELATED DB: PDB                                   
REMARK 900 WT ALPHA-LYTIC PROTEASE TO 0.83A RESOLUTION                          
REMARK 900 RELATED ID: 1TAL   RELATED DB: PDB                                   
REMARK 900 WT ALPHA-LYTIC PROTEASE TO 1.5A RESOLUTION                           
DBREF  3M7U A    1   198  UNP    P00778   PRLA_LYSEN     200    397             
DBREF  3M7U B 2184  2187  PDB    3M7U     3M7U          2184   2187             
SEQADV 3M7U ALA A   64  UNP  P00778    ARG   263 ENGINEERED MUTATION            
SEQADV 3M7U GLN A  182  UNP  P00778    GLU   381 ENGINEERED MUTATION            
SEQRES   1 A  198  ALA ASN ILE VAL GLY GLY ILE GLU TYR SER ILE ASN ASN          
SEQRES   2 A  198  ALA SER LEU CYS SER VAL GLY PHE SER VAL THR ARG GLY          
SEQRES   3 A  198  ALA THR LYS GLY PHE VAL THR ALA GLY HIS CYS GLY THR          
SEQRES   4 A  198  VAL ASN ALA THR ALA ARG ILE GLY GLY ALA VAL VAL GLY          
SEQRES   5 A  198  THR PHE ALA ALA ARG VAL PHE PRO GLY ASN ASP ALA ALA          
SEQRES   6 A  198  TRP VAL SER LEU THR SER ALA GLN THR LEU LEU PRO ARG          
SEQRES   7 A  198  VAL ALA ASN GLY SER SER PHE VAL THR VAL ARG GLY SER          
SEQRES   8 A  198  THR GLU ALA ALA VAL GLY ALA ALA VAL CYS ARG SER GLY          
SEQRES   9 A  198  ARG THR THR GLY TYR GLN CYS GLY THR ILE THR ALA LYS          
SEQRES  10 A  198  ASN VAL THR ALA ASN TYR ALA GLU GLY ALA VAL ARG GLY          
SEQRES  11 A  198  LEU THR GLN GLY ASN ALA CYS MET GLY ARG GLY ASP SER          
SEQRES  12 A  198  GLY GLY SER TRP ILE THR SER ALA GLY GLN ALA GLN GLY          
SEQRES  13 A  198  VAL MET SER GLY GLY ASN VAL GLN SER ASN GLY ASN ASN          
SEQRES  14 A  198  CYS GLY ILE PRO ALA SER GLN ARG SER SER LEU PHE GLN          
SEQRES  15 A  198  ARG LEU GLN PRO ILE LEU SER GLN TYR GLY LEU SER LEU          
SEQRES  16 A  198  VAL THR GLY                                                  
SEQRES   1 B    4  LEU GLN PRO ILE                                              
HET    SO4  A1001       5                                                       
HET    SO4  A1002       5                                                       
HET    SO4  A1003       5                                                       
HET    SO4  A1004       5                                                       
HETNAM     SO4 SULFATE ION                                                      
FORMUL   3  SO4    4(O4 S 2-)                                                   
FORMUL   7  HOH   *527(H2 O)                                                    
HELIX    1   1 ALA A   34  GLY A   38  5                                   5    
HELIX    2   2 PRO A  173  ARG A  177  5                                   5    
HELIX    3   3 LEU A  184  GLY A  192  1                                   9    
SHEET    1   A 3 ASN A   2  GLY A   5  0                                        
SHEET    2   A 3 THR A  74  ASN A  81  1  O  THR A  74   N  ILE A   3           
SHEET    3   A 3 SER A  84  THR A  87 -1  O  SER A  84   N  ASN A  81           
SHEET    1   B 8 SER A  15  SER A  18  0                                        
SHEET    2   B 8 GLU A   8  ILE A  11 -1  N  TYR A   9   O  CYS A  17           
SHEET    3   B 8 THR A  43  ILE A  46 -1  O  ARG A  45   N  SER A  10           
SHEET    4   B 8 ALA A  49  VAL A  58 -1  O  VAL A  51   N  ALA A  44           
SHEET    5   B 8 ALA A  64  LEU A  69 -1  O  ALA A  64   N  VAL A  58           
SHEET    6   B 8 THR A  28  THR A  33 -1  N  PHE A  31   O  VAL A  67           
SHEET    7   B 8 PHE A  21  ARG A  25 -1  N  ARG A  25   O  THR A  28           
SHEET    8   B 8 SER A 194  LEU A 195 -1  O  SER A 194   N  THR A  24           
SHEET    1   C 7 ALA A  99  GLY A 104  0                                        
SHEET    2   C 7 GLY A 108  TYR A 123 -1  O  GLY A 112   N  VAL A 100           
SHEET    3   C 7 GLY A 126  GLY A 134 -1  O  LEU A 131   N  VAL A 119           
SHEET    4   C 7 SER A 179  ARG A 183 -1  O  SER A 179   N  GLY A 134           
SHEET    5   C 7 ALA A 154  GLY A 161 -1  N  GLY A 160   O  LEU A 180           
SHEET    6   C 7 SER A 146  ILE A 148 -1  N  TRP A 147   O  GLN A 155           
SHEET    7   C 7 ALA A  99  GLY A 104 -1  N  CYS A 101   O  ILE A 148           
SSBOND   1 CYS A   17    CYS A   37                          1555   1555  2.03  
SSBOND   2 CYS A  101    CYS A  111                          1555   1555  2.04  
SSBOND   3 CYS A  137    CYS A  170                          1555   1555  2.03  
CISPEP   1 PHE A   59    PRO A   60          0        -3.96                     
SITE     1 AC1 10 ALA A   1  ASN A   2  ARG A 183  PRO A 186                    
SITE     2 AC1 10 HOH A 240  HOH A 245  HOH A 518  HOH A 553                    
SITE     3 AC1 10 HOH A 566  HOH A 574                                          
SITE     1 AC2 11 HIS A  36  ARG A 140  GLY A 141  SER A 143                    
SITE     2 AC2 11 HOH A 218  HOH A 253  HOH A 503  HOH A 541                    
SITE     3 AC2 11 HOH A 595  HOH A 717  LEU B2184                               
SITE     1 AC3 10 ALA A  27  THR A  28  ALA A 127  ARG A 129                    
SITE     2 AC3 10 HOH A 308  HOH A 336  HOH A 543  HOH A 551                    
SITE     3 AC3 10 HOH A 709  HOH A 714                                          
SITE     1 AC4 10 ALA A  95  VAL A  96  LYS A 117  HOH A 230                    
SITE     2 AC4 10 HOH A 296  HOH A 341  HOH A 438  HOH A 461                    
SITE     3 AC4 10 HOH A 470  HOH A 593                                          
CRYST1   65.396   65.396   79.856  90.00  90.00 120.00 P 32 2 1      6          
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      0.015291  0.008829  0.000000        0.00000                         
SCALE2      0.000000  0.017657  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012523        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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