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(-) Description

Title :  COMPLEX OF TWO FRAGMENTS OF CI2 [(1-40)(DOT)(41-64)]
 
Authors :  B. J. Davis, A. R. Fersht
Date :  02 Oct 95  (Deposition) - 29 Jan 96  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A,B  (20x)
Keywords :  Serine Protease Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. L. Neira, B. Davis, A. G. Ladurner, A. M. Buckle, P. Gay Gde, A. R. Fersht
Towards The Complete Structural Characterization Of A Protein Folding Pathway: The Structures Of The Denatured, Transition And Native States For The Association/Folding Of Two Complementary Fragments Of Cleaved Chymotrypsin Inhibitor 2. Direct Evidence For A Nucleation-Condensation Mechanism
Structure Fold. Des. V. 1 189 1996
PubMed-ID: 9079381  |  Reference-DOI: 10.1016/S1359-0278(96)00031-4
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CHYMOTRYPSIN INHIBITOR 2
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PTZ18U
    Expression System Taxid: 562
    Organism Scientific: HORDEUM VULGARE
    Organism Taxid: 4513
    Other Details: CLEAVED BETWEEN RESIDUES 40 AND 41
    Strain: HIPROLY
    Synonym: CI2
 
Molecule 2 - CHYMOTRYPSIN INHIBITOR 2
    Chains: B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PTZ18U
    Expression System Taxid: 562
    Organism Scientific: HORDEUM VULGARE
    Organism Taxid: 4513
    Other Details: CLEAVED BETWEEN RESIDUES 40 AND 41
    Strain: HIPROLY
    Synonym: CI2

 Structural Features

(-) Chains, Units

  
NMR Structure (20x): 

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1CIR)

(-) Sites  (0, 0)

(no "Site" information available for 1CIR)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1CIR)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1CIR)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1CIR)

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1POTATO_INHIBITORPS00285 Potato inhibitor I family signature.ICI2_HORVU25-36  1A:5-16

(-) Exons   (0, 0)

(no "Exon" information available for 1CIR)

(-) Sequences/Alignments

NMR Structure
   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
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Chain A from PDB  Type:PROTEIN  Length:39
 aligned with ICI2_HORVU | P01053 from UniProtKB/Swiss-Prot  Length:84

    Alignment length:39
                                    30        40        50         
            ICI2_HORVU   21 LKTEWPELVGKSVEEAKKVILQDKPEAQIIVLPVGTIVT 59
               SCOP domains d1cir.1 A:,B:                           SCOP domains
               CATH domains 1cirA00 A:1-39                          CATH domains
               Pfam domains --------------------------------------- Pfam domains
         Sec.struct. author .....hhh....hhhhhhhh.........eee....... Sec.struct. author
                 SAPs(SNPs) --------------------------------------- SAPs(SNPs)
                    PROSITE ----POTATO_INHIB----------------------- PROSITE
                 Transcript --------------------------------------- Transcript
                  1cir A  1 MKTEWPELVGKSVEEAKKVILQDKPEAQIIVLPVGTIVT 39
                                    10        20        30         


Chain B from PDB  Type:PROTEIN  Length:24
 aligned with ICI2_HORVU | P01053 from UniProtKB/Swiss-Prot  Length:84

    Alignment length:24
                                    70        80    
            ICI2_HORVU   61 EYRIDRVRLFVDKLDNIAQVPRVG 84
               SCOP domains d1cir.1 A:,B:            SCOP domains
               CATH domains ------------------------ CATH domains
               Pfam domains ------------------------ Pfam domains
         Sec.struct. author .......eee.............. Sec.struct. author
                 SAPs(SNPs) ------------------------ SAPs(SNPs)
                    PROSITE ------------------------ PROSITE
                 Transcript ------------------------ Transcript
                  1cir B 41 EYRIDRVRLFVDKLDNIAQVPRVG 64
                                    50        60
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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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  (1, 1)

NMR Structure
(-)
Class: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (1, 1)

NMR Structure
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1CIR)

(-) Gene Ontology  (5, 5)

NMR Structure(hide GO term definitions)
Chain A,B   (ICI2_HORVU | P01053)
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.
    GO:0009611    response to wounding    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating damage to the organism.

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  1cir
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  ICI2_HORVU | P01053
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 Related Entries

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

UniProtKB/Swiss-Prot
        ICI2_HORVU | P01053: 1ciq 1cis 1coa 1cq4 1lw6 1ypa 1ypb 1ypc 2ci2 2sni 3ci2 5fbz 5ffn

(-) Related Entries Specified in the PDB File

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