PDB Short entry for 2PSA
HEADER    KALLIKREIN                              11-MAR-99   2PSA              
TITLE     KNOWLEDGE BASED MODEL OF PROSTATE SPECIFIC ANTIGEN                    
TITLE    2 (THEORETICAL MODEL) BOUND TO A CONSENSUS PEPTIDE SUBSTRATE           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROTEIN (PROSTATE SPECIFIC ANTIGEN);                       
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: PSA;                                                        
COMPND   5 EC: 3.4.21.77;                                                       
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: PROTEIN (CONSENSUS PEPTIDE SUBSTRATE);                     
COMPND   9 CHAIN: I;                                                            
COMPND  10 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 MOL_ID: 2;                                                           
SOURCE   5 SYNTHETIC: YES;                                                      
SOURCE   6 OTHER_DETAILS: HEXAPEPTIDE                                           
KEYWDS    KALLIKREIN, SERINE PROTEASE, PSA, SUBSTRATE PHAGE DISPLAY             
EXPDTA    THEORETICAL MODEL                                                     
AUTHOR    J.L.PELLEQUER                                                         
REVDAT   1   16-MAR-99 2PSA    0                                                
JRNL        AUTH   G.S.COOMBS,R.C.BERGSTROM,J.L.PELLEQUER,S.I.BAKER,            
JRNL        AUTH 2 M.NAVRE,M.M.SMITH,J.A.TAINER,E.L.MADISON,D.R.COREY           
JRNL        TITL   SUBSTRATE SPECIFICITY OF PROSTATE-SPECIFIC ANTIGEN           
JRNL        TITL 2 (PSA).                                                       
JRNL        REF    CHEM.BIOL.                    V.   5   475 1998              
JRNL        REFN   ASTM CBOLE2  UK ISSN 1074-5521                               
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : NULL                                                 
REMARK   3   AUTHORS     : NULL                                                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NUMBER OF ATOMS USED IN REFINEMENT.       
REMARK   3  PROTEIN ATOMS: 3641 PROTEIN HEAVY ATOMS : 1832 RMS DEVIATIONS       
REMARK   3  FROM IDEAL VALUES. BOND LENGTHS (A): 0.015 BOND ANGLES              
REMARK   3  (DEGREES): 2.459 DIHEDRAL ANGLES (DEGREES): NULL IMPROPER           
REMARK   3  ANGLES (DEGREES) : 2.110 PARAMETER FILE 1 : PARALLH22X.PRO          
REMARK   3  PARAMETER FILE 2 : JLP22ADD.PAR TOPOLOGY FILE 1 :                   
REMARK   3  TOPALLH22X.PRO TOPOLOGY FILE 2 : NULL OTHER REFINEMENT              
REMARK   3  REMARKS: RAMACHANDRAM MAP AS DETERMINED BY PROCHECK MOST            
REMARK   3  FAVOURED : 163 (81.9%) ADDITIONAL ALLOWED REGIONS: 36 18.1%         
REMARK   3  GENEROUSLY ALLOWED REGIONS: 0 0.0% DISALLOWED REGIONS : 0 0.0%      
REMARK   4                                                                      
REMARK   4 2PSA COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998                       
REMARK   6                                                                      
REMARK   6 THE CHYMOTRYPSINOGEN NUMBERING IS MAINTAINED THROUGHOUT              
REMARK   6 THIS FILE. THE MODELED PEPTIDE SUBSTRATE USES THE SAME               
REMARK   6 NUMBERING AS IN THE COMPLEX BETWEEN KALLIKREIN AND                   
REMARK   6 HIRUSTATIN IN 1HIA.PDB (RESIDUE 27 TO 32).                           
REMARK   7                                                                      
REMARK   7 THE FIRST 18 RESIDUES IN PSA FORM THE SIGNAL PEPTIDE.                
REMARK   7 RESIDUES 19 TO 24 FORM THE "ACTIVATION PEPTIDE" THAT                 
REMARK   7 IS CLEAVED IN ACTIVE PSA. THE MODEL PRESENT COORDINATES              
REMARK   7 FOR RESIDUES 25 TO 261 IN PSA NUMBERING.                             
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 15-MAR-1999.                
REMARK 100 THE RCSB ID CODE IS RCSB000629.                                      
REMARK 220                                                                      
REMARK 220 EXPERIMENTAL DETAILS                                                 
REMARK 220  EXPERIMENT TYPE                : THEORETICAL MODELLING              
REMARK 220                                                                      
REMARK 220 REMARK: PSA WAS MODELED USING THE PORCINE TISSUE KALLIKREIN          
REMARK 220         (2KAI.PDB, 60% IDENTICAL RESIDUES). THE CONSENSUS            
REMARK 220         PEPTIDE SUBSTRATE WAS IDENTIFIED BY A SUBSTRATE PHAGE        
REMARK 220         DISPLAY METHOD WITH AN ITERATIVE OPTIMIZATION OF NATIVE      
REMARK 220         SUBSTRATE SEQUENCES FROM P4 TO P2'. THE CONSENSUS            
REMARK 220         PEPTIDE SUBSTRATE WAS DOCKED IN A CANONICAL CONFORMATION     
REMARK 220         CHARACTERIZED BY A PRECISE SET OF HYDROGEN BONDING           
REMARK 220         PATTERN. THE SUBSTRATE FORMS A TYPE VIA2 TURN AT THE P2-     
REMARK 220         P1 POSITION. A MOLECULAR DYNAMICS SIMULATION WAS CARRIED     
REMARK 220         OUT ON THE LOOP 95-96 (11 RESIDUES) IN THE PRESENCE OF       
REMARK 220         THE PEPTIDE SUBSTRATE: A 50 PS DYNAMICS AT 300K USING        
REMARK 220         THE VERLET ALGORITHM IN XPLOR (GAS PHASE WITH NO             
REMARK 220         ELECTROSTATIC TERM TURNED ON).                               
REMARK 225                                                                      
REMARK 225 THEORETICAL MODEL                                                    
REMARK 225 THE COORDINATES IN THIS ENTRY REPRESENT A MODEL STRUCTURE.           
REMARK 225 PROTEIN DATA BANK CONVENTIONS REQUIRE THAT CRYST1 AND                
REMARK 225 SCALE RECORDS BE INCLUDED, BUT THE VALUES ON THESE                   
REMARK 225 RECORDS ARE MEANINGLESS.                                             
REMARK 600                                                                      
REMARK 600 HETEROGEN                                                            
REMARK 600 THE N-TERMINUS OF CHAIN I IS ACETYLATED.                             
REMARK 600                                                                      
REMARK 600 THE C-TERMINUS OF CHAIN I IS AMIDATED.                               
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: CAT                                                 
REMARK 800 SITE_DESCRIPTION:                                                    
REMARK 800 CATALYTIC TRIAD                                                      
DBREF  2PSA A   16   246  UNP    P07288   PROS_HUMAN      25    261             
SEQRES   1 A  237  ILE VAL GLY GLY TRP GLU CYS GLU LYS HIS SER GLN PRO          
SEQRES   2 A  237  TRP GLN VAL LEU VAL ALA SER ARG GLY ARG ALA VAL CYS          
SEQRES   3 A  237  GLY GLY VAL LEU VAL HIS PRO GLN TRP VAL LEU THR ALA          
SEQRES   4 A  237  ALA HIS CYS ILE ARG ASN LYS SER VAL ILE LEU LEU GLY          
SEQRES   5 A  237  ARG HIS SER LEU PHE HIS PRO GLU ASP THR GLY GLN VAL          
SEQRES   6 A  237  PHE GLN VAL SER HIS SER PHE PRO HIS PRO LEU TYR ASP          
SEQRES   7 A  237  MET SER LEU LEU LYS ASN ARG PHE LEU ARG PRO GLY ASP          
SEQRES   8 A  237  ASP SER SER HIS ASP LEU MET LEU LEU ARG LEU SER GLU          
SEQRES   9 A  237  PRO ALA GLU LEU THR ASP ALA VAL LYS VAL MET ASP LEU          
SEQRES  10 A  237  PRO THR GLN GLU PRO ALA LEU GLY THR THR CYS TYR ALA          
SEQRES  11 A  237  SER GLY TRP GLY SER ILE GLU PRO GLU GLU PHE LEU THR          
SEQRES  12 A  237  PRO LYS LYS LEU GLN CYS VAL ASP LEU HIS VAL ILE SER          
SEQRES  13 A  237  ASN ASP VAL CYS ALA GLN VAL HIS PRO GLN LYS VAL THR          
SEQRES  14 A  237  LYS PHE MET LEU CYS ALA GLY ARG TRP THR GLY GLY LYS          
SEQRES  15 A  237  SER THR CYS SER GLY ASP SER GLY GLY PRO LEU VAL CYS          
SEQRES  16 A  237  ASN GLY VAL LEU GLN GLY ILE THR SER TRP GLY SER GLU          
SEQRES  17 A  237  PRO CYS ALA LEU PRO GLU ARG PRO SER LEU TYR THR LYS          
SEQRES  18 A  237  VAL VAL HIS TYR ARG LYS TRP ILE LYS ASP THR ILE VAL          
SEQRES  19 A  237  ALA ASN PRO                                                  
SEQRES   1 I    8  ACE SER SER TYR TYR SER GLY NH2                              
HET    ACE  I  26       6                                                       
HET    NH2  I  33       3                                                       
HETNAM     ACE ACETYL GROUP                                                     
HETNAM     NH2 AMINO GROUP                                                      
FORMUL   2  ACE    C2 H4 O                                                      
FORMUL   2  NH2    H3 N                                                         
HELIX    1   1 ALA A   56  CYS A   58  5                                   3    
HELIX    2   2 ASN A  165  VAL A  171  1                                   7    
HELIX    3   3 VAL A  231  ALA A  244  5                                  14    
SHEET    1   A 7 GLN A  81  GLN A  84  0                                        
SHEET    2   A 7 VAL A  64  LEU A  67 -1  N  LEU A  67   O  GLN A  81           
SHEET    3   A 7 GLN A  30  SER A  35 -1  N  ALA A  34   O  VAL A  64           
SHEET    4   A 7 ARG A  39  HIS A  48 -1  N  GLY A  44   O  VAL A  31           
SHEET    5   A 7 TRP A  51  THR A  54 -1  N  LEU A  53   O  VAL A  45           
SHEET    6   A 7 MET A 104  LEU A 108 -1  N  LEU A 106   O  VAL A  52           
SHEET    7   A 7 VAL A  85  PRO A  90 -1  N  PHE A  89   O  LEU A 105           
SHEET    1   B 7 GLN A 156  HIS A 161  0                                        
SHEET    2   B 7 THR A 135  GLY A 140 -1  N  GLY A 140   O  GLN A 156           
SHEET    3   B 7 PRO A 198  CYS A 201 -1  N  VAL A 200   O  TYR A 137           
SHEET    4   B 7 VAL A 208  TRP A 215 -1  N  GLY A 211   O  LEU A 199           
SHEET    5   B 7 SER A 226  LYS A 230 -1  N  THR A 229   O  ILE A 212           
SHEET    6   B 7 MET A 180  GLY A 184A-1  N  ALA A 183   O  SER A 226           
SHEET    7   B 7 HIS A 161  ILE A 163 -1  N  ILE A 163   O  CYS A 182           
SSBOND   1 CYS A   22    CYS A  157                                             
SSBOND   2 CYS A   42    CYS A   58                                             
SSBOND   3 CYS A  136    CYS A  201                                             
SSBOND   4 CYS A  168    CYS A  182                                             
SSBOND   5 CYS A  191    CYS A  220                                             
CISPEP   1 GLU A  218    PRO A  219          0         9.80                     
SITE     1 CAT  3 HIS A  57  ASP A 102  SER A 195                               
CRYST1    1.000    1.000    1.000  90.00  90.00  90.00 P 1           1          
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      1.000000  0.000000  0.000000        0.00000                         
SCALE2      0.000000  1.000000  0.000000        0.00000                         
SCALE3      0.000000  0.000000  1.000000        0.00000