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(-) Description

Title :  STRUCTURE OF THE COMPLEX OF STREPTOMYCES GRISEUS PROTEASE B AND THE THIRD DOMAIN OF THE TURKEY OVOMUCOID INHIBITOR AT 1.8 ANGSTROMS RESOLUTION
 
Authors :  R. J. Read, M. Fujinaga, A. R. Sielecki, M. N. G. James
Date :  21 Jan 83  (Deposition) - 12 Jul 83  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.80
Chains :  Asym./Biol. Unit :  E,I
Keywords :  Complex(Serine Proteinase-Inhibitor) (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  R. J. Read, M. Fujinaga, A. R. Sielecki, M. N. James
Structure Of The Complex Of Streptomyces Griseus Protease B And The Third Domain Of The Turkey Ovomucoid Inhibitor At 1. 8-A Resolution.
Biochemistry V. 22 4420 1983
PubMed-ID: 6414511  |  Reference-DOI: 10.1021/BI00288A012
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROTEINASE B (SGPB)
    Chains: E
    Engineered: YES
    Organ: PANCREATIC
    Organism Scientific: STREPTOMYCES GRISEUS
    Organism Taxid: 1911
 
Molecule 2 - TURKEY OVOMUCOID INHIBITOR (OMTKY3)
    Chains: I
    Engineered: YES

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : EI

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 3SGB)

(-) Sites  (0, 0)

(no "Site" information available for 3SGB)

(-) SS Bonds  (5, 5)

Asymmetric/Biological Unit
No.Residues
1E:42 -E:58
2E:191 -E:220
3I:8 -I:38
4I:16 -I:35
5I:24 -I:56

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Phe E:94 -Pro E:99A
2Tyr I:11 -Pro I:12

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3SGB)

(-) PROSITE Motifs  (3, 3)

Asymmetric/Biological Unit (3, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1KAZAL_1PS00282 Kazal serine protease inhibitors family signature.IOVO_MELGA86-108
145-167		  1-
I:16-38
2TRYPSIN_HISPS00134 Serine proteases, trypsin family, histidine active site.PRTB_STRGR143-148  1E:53-58
3TRYPSIN_SERPS00135 Serine proteases, trypsin family, serine active site.PRTB_STRGR249-260  1E:191-200

(-) Exons   (0, 0)

(no "Exon" information available for 3SGB)

(-) Sequences/Alignments

Asymmetric/Biological 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:185
 aligned with PRTB_STRGR | P00777 from UniProtKB/Swiss-Prot  Length:299

    Alignment length:185
                                   124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294     
          PRTB_STRGR    115 ISGGDAIYSSTGRCSLGFNVRSGSTYYFLTAGHCTDGATTWWANSARTTVLGTTSGSSFPNNDYGIVRYTNTTIPKDGTVGGQDITSAANATVGMAVTRRGSTTGTHSGSVTALNATVNYGGGDVVYGMIRTNVCAEPGDSGGPLYSGTRAIGLTSGGSGNCSSGGTTFFQPVTEALSAYGVSVY  299
               SCOP domains d3sgbe_ E: Protease B                                                                                                                                                                     SCOP domains
               CATH domains 3sgbE01 E:16-116,E:231-242 Trypsin-like serine proteases                     3sgbE02 E:117-230 Trypsin-like serine proteases                                                3sgbE01       CATH domains
               Pfam domains Trypsin-3sgbE01 E:16-236                                                                                                                                                           ------ Pfam domains
         Sec.struct. author ...eeeeee..eeeeeeeeeee..eeeeee........eeeee.....eeeeeeeeee.....eeeeeee.......................eeeeeeee...eeeeeeeeeeeeee.......eeeeeeee........eeeeee..eeeeeeeeeeee...eeeeeeehhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ----------------------------TRYPSI------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (1) --------------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER --------------------------------------- PROSITE (1)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3sgb E   16 ISGGDAIYSSTGRCSLGFNVRSGSTYYFLTAGHCTDGATTWWANSARTTVLGTTSGSSFPNNDYGIVRYTNTTIPKDGTVGGQDITSAANATVGMAVTRRGSTTGTHSGSVTALNATVNYGGGDVVYGMIRTNVCAEPGDSGGPLYSGTRAIGLTSGGSGNCSSGGTTFFQPVTEALVAYGVSVY  242
                               ||   34|       48||||    54     || 65  ||    84      |99A       109       119       129       139   ||  161       171       181  ||  |194       208       218       228       237     
                              19|   34|       48A|||          60|    68|           91|||                                         143|                         184|  ||       202|                         235A       
                               29    39        48B||           62     78            93||                                          156                          190  ||        207                                    
                                                48C|                                 94|                                                                         192A|                                               
                                                 48D                                 99A                                                                          192B                                               


Chain I from PDB  Type:PROTEIN  Length:50
 aligned with IOVO_MELGA | P68390 from UniProtKB/Swiss-Prot  Length:185

    Alignment length:50
                                   145       155       165       175       185
          IOVO_MELGA    136 DCSEYPKPACTLEYRPLCGSDNKTYGNKCNFCNAVVESNGTLTLSHFGKC  185
               SCOP domains d3sgbi_ I: Ovomucoid domains                       SCOP domains
               CATH domains 3sgbI00 I:7-56  [code=3.30.60.30, no name defined] CATH domains
               Pfam domains -Kazal_1-3sgbI01 I:8-56                            Pfam domains
         Sec.struct. author ..............eeeee..eeeeehhhhhhhhhhh.......ee.... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------KAZAL_1  PDB: I:16-38  ------------------ PROSITE
                 Transcript -------------------------------------------------- Transcript
                3sgb I    7 DCSEYPKPACTLEYRPLCGSDNKTYGNKCNFCNAVVESNGTLTLSHFGKC   56
                                    16        26        36        46        56
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  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/Biological Unit
(-)
Class: All beta proteins (24004)
(-)
Class: Small proteins (3458)

(-) CATH Domains  (2, 3)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (2, 2)

Asymmetric/Biological Unit
(-)
Clan: Kazal (46)
(-)
Clan: Peptidase_PA (797)

(-) Gene Ontology  (10, 11)

Asymmetric/Biological Unit(hide GO term definitions)
Chain E   (PRTB_STRGR | P00777)
molecular function
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0008233    peptidase activity    Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
    GO:0004252    serine-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
    GO:0008236    serine-type peptidase activity    Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
biological process
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

Chain I   (IOVO_MELGA | P68390)
molecular function
    GO:0030414    peptidase inhibitor activity    Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds.
    GO:0004867    serine-type endopeptidase inhibitor activity    Stops, prevents or reduces the activity of serine-type endopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain; a serine residue (and a histidine residue) are at the active center of the enzyme.
biological process
    GO:0010951    negative regulation of endopeptidase activity    Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
    GO:0010466    negative regulation of peptidase activity    Any process that stops or reduces the rate of peptidase activity, the hydrolysis of peptide bonds within proteins.
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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 Related Entries

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

UniProtKB/Swiss-Prot
        IOVO_MELGA | P68390: 1cho 1cso 1ct0 1ct2 1ct4 1ds2 1ds3 1hja 1m8b 1m8c 1omt 1omu 1ppf 1r0r 1sgd 1sge 1sgn 1sgp 1sgq 1sgr 1sgy 1tur 1tus 1yu6 1z7k 2gkr 2gkt 2gkv 2nu0 2nu1 2nu2 2nu3 2nu4 2sgd 2sge 2sgf 2sgp 2sgq 3sgq
        PRTB_STRGR | P00777: 1cso 1ct0 1ct2 1ct4 1ds2 1sgd 1sge 1sgn 1sgp 1sgq 1sgr 1sgy 2gkv 2nu0 2nu1 2nu2 2nu3 2nu4 2qa9 2qaa 2sgd 2sge 2sgf 2sgp 2sgq 3sgq 4sgb

(-) Related Entries Specified in the PDB File

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