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(-) Description

Title :  SOLUTION STRUCTURE OF AN ACYCLIC PERMUTANT OF SFTI-1, A TRYPSIN INHIBITOR FROM SUNFLOWER SEEDS
 
Authors :  M. L. J. Korsinczky, H. J. Schirra, K. J. Rosengren, J. West, B. A. Condie M. A. Anderson, D. J. Craik
Date :  06 Jun 01  (Deposition) - 22 Aug 01  (Release) - 28 Dec 16  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
NMR Structure *:  A  (1x)
Keywords :  Beta Sheet, 1 Disulfide Bridge, Linear Backbone, 14/1-Lsfti-1, Protein Binding (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  M. L. Korsinczky, H. J. Schirra, K. J. Rosengren, J. West, B. A. Condie, L. Otvos, M. A. Anderson, D. J. Craik
Solution Structures By 1H Nmr Of The Novel Cyclic Trypsin Inhibitor Sfti-1 From Sunflower Seeds And An Acyclic Permutant.
J. Mol. Biol. V. 311 579 2001
PubMed-ID: 11493011  |  Reference-DOI: 10.1006/JMBI.2001.4887

(-) Compounds

Molecule 1 - CYCLIC TRYPSIN INHIBITOR
    Chains: A
    Engineered: YES
    Organism Scientific: HELIANTHUS ANNUUS
    Organism Taxid: 4232
    Other Details: ACIRCULAR PERMUTATION OF A NATURALLY OCCURRING CIRCULAR PEPTIDE FROM SUNFLOWER SEEDS.
    Synonym: SFTI-1
    Synthetic: YES

 Structural Features

(-) Chains, Units

  1
NMR Structure (20x): A
NMR Structure * (1x): A

Summary Information (see also Sequences/Alignments below)

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

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

(-) Sites  (0, 0)

(no "Site" information available for 1JBN)

(-) SS Bonds  (1, 1)

NMR Structure
No.Residues
1A:3 -A:11

(-) Cis Peptide Bonds  (1, 20)

NMR Structure
No.ModelResidues
11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20Ile A:7 -Pro A:8

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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(-) PROSITE Motifs  (0, 0)

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(-) Exons   (0, 0)

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(-) 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:14
 aligned with SFTI1_HELAN | Q4GWU5 from UniProtKB/Swiss-Prot  Length:56

    Alignment length:14
                                    49    
           SFTI1_HELAN   40 GRCTKSIPPICFPD 53
               SCOP domains d1jbna_ 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
                  1jbn A  1 GRCTKSIPPICFPD 14
                                    10
   Legend:   → Mismatch (orange background)
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  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 1JBN)

(-) Pfam Domains  (0, 0)

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(-) 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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  Cis Peptide Bonds
    Ile A:7 - Pro A:8   [ RasMol ]  
 

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 Related Entries

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

UniProtKB/Swiss-Prot
        SFTI1_HELAN | Q4GWU5: 1jbl 1o8y 1o8z 1sfi 1t9e 2ab9 3p8f 4abi 4abj 4hgc 4k1e 4k8y 4kel 4xoj

(-) Related Entries Specified in the PDB File

1jbl 1JBL CONTAINS CYCLIC SFTI-1 (PARENT MOLECULE)