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(-) Description

Title :  MOLECULAR RECOGNITION AT THE ACTIVE SITE OF SUBTILISIN BPN': CRYSTALLOGRAPHIC STUDIES USING GENETICALLY ENGINEERED PROTEINACEOUS INHIBITOR SSI (STREPTOMYCES SUBTILISIN INHIBITOR)
 
Authors :  Y. Mitsui, Y. Takeuchi, K. T. Nakamura
Date :  18 Nov 91  (Deposition) - 31 Jan 94  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym. Unit :  E,I
Biol. Unit 1:  E,I  (2x)
Keywords :  Complex(Proteinase/Inhibitor) (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Y. Takeuchi, S. Noguchi, Y. Satow, S. Kojima, I. Kumagai, K. Miura, K. T. Nakamura, Y. Mitsui
Molecular Recognition At The Active Site Of Subtilisin Bpn': Crystallographic Studies Using Genetically Engineered Proteinaceous Inhibitor Ssi (Streptomyces Subtilisin Inhibitor).
Protein Eng. V. 4 501 1991
PubMed-ID: 1891457  |  Reference-DOI: 10.1093/PROTEIN/4.5.501
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - SUBTILISIN BPN'
    Chains: E
    EC Number: 3.4.21.62
    Engineered: YES
    Organism Scientific: BACILLUS AMYLOLIQUEFACIENS
    Organism Taxid: 1390
 
Molecule 2 - SUBTILISIN INHIBITOR (SSI)
    Chains: I
    Engineered: YES

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : EI
Biological Unit 1 (2x): EI

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric Unit (1, 2)
No.NameCountTypeFull Name
1CA2Ligand/IonCALCIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION

(-) Sites  (6, 6)

Asymmetric Unit (6, 6)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLN E:2 , ASP E:41 , LEU E:75 , ASN E:77 , ILE E:79 , VAL E:81BINDING SITE FOR RESIDUE CA E 501
2AC2SOFTWAREGLY E:169 , LYS E:170 , TYR E:171 , VAL E:174 , GLU E:195 , ASP E:197 , HOH E:631 , HOH E:632BINDING SITE FOR RESIDUE CA E 502
3CATAUTHORASP E:32 , HIS E:64 , SER E:221RESIDUES FORMING THE CATALYTIC TRIAD IN SUBTILISIN
4RACAUTHORLYS I:73 , VAL I:74TWO RESIDUES OF SSI CONNECTED THROUGH A REACTIVE SITE PEPTIDE BOND (OR A SCISSIBLE BOND) WHICH IS POTENTIALLY CLEAVED BY TARGET ENZYMES INCLUDING SUBTILISIN
5S13AUTHORSER E:125 , LEU E:126 , GLY E:127S1-3 SITE, COMPRISES A THREE-RESIDUE POLYPEPTIDE SEGMENT OF SUBTILISIN CAPABLE OF FORMING AN ANTIPARALLEL BETA-SHEET WITH THE P1, P2 AND P3 RESIDUES OF A LIGAND
6S46AUTHORGLY E:102 , GLN E:103 , TYR E:104S4-6 SITE AND COMPRISES A THREE-RESIDUE POLYPEPTIDE SEGMENT OF SUBTILISIN CAPABLE OF FORMING AN ANTIPARALLEL BETA-SHEET WITH THE P4, P5 AND P6 RESIDUES OF A LIGAND

(-) SS Bonds  (2, 2)

Asymmetric Unit
No.Residues
1I:35 -I:50
2I:71 -I:101

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Tyr E:167 -Pro E:168
2Ala I:36 -Pro I:37

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 5SIC)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 5SIC)

(-) Exons   (0, 0)

(no "Exon" information available for 5SIC)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain E from PDB  Type:PROTEIN  Length:275
                                                                                                                                                                                                                                                                                                                   
               SCOP domains d5sice_ E: Subtilisin                                                                                                                                                                                                                                                               SCOP domains
               CATH domains 5sicE00 E:1-275  [code=3.40.50.200, no name defined]                                                                                                                                                                                                                                CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....hhhhhh.hhhhhh.......eeeeeee.............eeeee............hhhhhhhhhhhh..............eeeeeee.......hhhhhhhhhhhhhhh..eeeee.......hhhhhhhhhhhhhh..eeeeee.....................eeeeee.................eeeee..eeeee...eeeee..hhhhhhhhhhhhhhhhhhh...hhhhhhhhhhh......hhhhhh....hhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 5sic E   1 AQSVPYGVSQIKAPALHSQGYTGSNVKVAVIDSGIDSSHPDLKVAGGASMVPSETNPFQDNNSHGTHVAGTVAALNNSIGVLGVAPSASLYAVKVLGADGSGQYSWIINGIEWAIANNMDVINMSLGGPSGSAALKAAVDKAVASGVVVVAAAGNEGTSGSSSTVGYPGKYPSVIAVGAVDSSNQRASFSSVGPELDVMAPGVSIQSTLPGNKYGAYNGTSMASPHVAGAAALILSKHPNWTNTQVRSSLENTTTKLGDSFYYGKGLINVQAAAQ 275
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270     


Chain I from PDB  Type:PROTEIN  Length:107
                                                                                                                                           
               SCOP domains d5sici_ I: Subtilisin inhibitor                                                                             SCOP domains
               CATH domains 5sicI00 I:7-113 Subtilisin Inhibitor                                                                        CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeeeee.........eeeeeee....eee...hhhhhhhhhhh....................eeeeeeeeeee.eeeeeeeee.hhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------- Transcript
                 5sic I   7 YAPSALVLTVGKGVSATTAAPERAVTLTCAPGPSGTHPAAGSACADLAAVGGDLNALTRGEDVGCPKVYDPVLLTVDGVWQGKRVSYERVFSNECEMNAHGSSVFAF 113
                                    16        26        36        46        56        66        76        86        96       106
   Legend:   → Mismatch (orange background)
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  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (2, 2)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (2, 2)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 5SIC)

(-) Gene Ontology  (15, 16)

Asymmetric Unit(hide GO term definitions)

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  5sic
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  SSI_STRAO | P01006
    Comparative Protein Structure Models: ModBase
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  SUBT_BACAM | P00782
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  3.4.21.62
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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        SSI_STRAO | P01006: 2sic 2tld 3sic 3ssi
        SUBT_BACAM | P00782: 1a2q 1ak9 1aqn 1au9 1dui 1gns 1gnv 1lw6 1s01 1s02 1sbh 1sbi 1sbn 1sbt 1sib 1spb 1st2 1sua 1sub 1suc 1sud 1sue 1sup 1tm1 1tm3 1tm4 1tm5 1tm7 1tmg 1to1 1to2 1ubn 1v5i 1y1k 1y33 1y34 1y3b 1y3c 1y3d 1y3f 1y48 1y4a 1y4d 1yja 1yjb 1yjc 2sbt 2sic 2sni 2st1 3bgo 3cnq 3co0 3f49 3sic

(-) Related Entries Specified in the PDB File

2sic COMPLEX OF SUBTILISIN BPN' WITH WILD STRETOMYCES SUBTILISIN INHIBITOR