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(-) Description

Title :  SOLUTION STRUCTURE OF SFTI-1(6,5), AN ACYCLIC PERMUTANT OF THE PROTEINASE INHIBITOR SFTI-1, TRANS-TRANS-TRANS CONFORMER (TT-A)
 
Authors :  U. C. Marx, D. J. Craik
Date :  09 Dec 02  (Deposition) - 13 Mar 03  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
Keywords :  Protease Inhibitor, Bowman-Birk Inhibitor, Sfti-1, Acyclic Permutant (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  U. C. Marx, M. Korsinczky, H. Schirra, A. Jones, B. Condie, L. Otvos, D. J. Craik
Enzymatic Cyclization Of A Potent Bowman-Birk Protease Inhibitor, Sunflower Trypsin Inhibitor-1, And Solution Structure Of An Acyclic Precursor Peptide
J. Biol. Chem. V. 278 21782 2003
PubMed-ID: 12621047  |  Reference-DOI: 10.1074/JBC.M212996200

(-) Compounds

Molecule 1 - CYCLIC TRYPSIN INHIBITOR
    Chains: A
    Organism Common: SUNFLOWER
    Organism Scientific: HELIANTHUS ANNUUS L.
    Organism Taxid: 4232
    Other Details: ACYCLIC PERMUTANT OF SFTI-1, OPEN BETWEEN RESIDUES K5 AND S6
    Synonym: SFTI-1
    Synthetic: YES
    Tissue: SEED

 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 1O8Y)

(-) Sites  (0, 0)

(no "Site" information available for 1O8Y)

(-) SS Bonds  (1, 1)

NMR Structure
No.Residues
1A:3 -A:11

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1O8Y)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1O8Y)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1O8Y)

(-) Exons   (0, 0)

(no "Exon" information available for 1O8Y)

(-) 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
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:14
 aligned with SFTI1_HELAN | Q4GWU5 from UniProtKB/Swiss-Prot  Length:56

    Alignment length:14
                                    49    
           SFTI1_HELAN   40 GRCTKSIPPICFPD 53
               SCOP domains d1o8ya_ A:     SCOP domains
               CATH domains -------------- CATH domains
               Pfam domains -------------- Pfam domains
         Sec.struct. author .ee.......ee.. Sec.struct. author
                 SAPs(SNPs) -------------- SAPs(SNPs)
                    PROSITE -------------- PROSITE
                 Transcript -------------- Transcript
                  1o8y A  1 GRCTKSIPPICFPD 14
                                    10
   Legend:   → Mismatch (orange background)
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    → 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  (1, 1)

NMR Structure
(-)
Class: Peptides (792)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1O8Y)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1O8Y)

(-) Gene Ontology  (4, 4)

NMR Structure(hide GO term definitions)
Chain A   (SFTI1_HELAN | Q4GWU5)
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.

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 Related Entries

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

UniProtKB/Swiss-Prot
        SFTI1_HELAN | Q4GWU5: 1jbl 1jbn 1o8z 1sfi 1t9e 2ab9 3p8f 4abi 4abj 4hgc 4k1e 4k8y 4kel 4xoj

(-) Related Entries Specified in the PDB File

1jbl SOLUTION STRUCTURE OF SFTI-1,A CYCLIC TRYPSIN INHIBITOR FROM SUNFLOWER SEEDS
1jbn SOLUTION STRUCTURE OF SFTI-1(14,1), AN ACYCLIC PERMUTANT OF THE PROTEINASE INHIBITOR SFTI-1
1o8z SOLUTION STRUCTURE OF SFTI-1(6,5), AN ACYCLIC PERMUTANT OF THE PROTEINASE INHIBITOR SFTI-1,CIS-TRANS-TRANS CONFORMER (CT-A)
1sfi HIGH RESOLUTION STRUCTURE OF A POTENT, CYCLIC PROTEASE INHIBITOR FROM SUNFLOWER SEEDS