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(-) Description

Title :  AN 1H NMR DETERMINATION OF THE THREE DIMENSIONAL STRUCTURES OF MIRROR IMAGE FORMS OF A LEU-5 VARIANT OF THE TRYPSIN INHIBITOR ECBALLIUM ELATERIUM (EETI-II)
 
Authors :  K. J. Nielsen, D. Alewood, J. Andrews, S. B. H. Kent, D. J. Craik
Date :  04 Jan 94  (Deposition) - 31 May 94  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
Keywords :  Proteinase Inhibitor(Trypsin) (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  K. J. Nielsen, D. Alewood, J. Andrews, S. B. Kent, D. J. Craik
An 1H Nmr Determination Of The Three-Dimensional Structures Of Mirror-Image Forms Of A Leu-5 Variant Of The Trypsin Inhibitor From Ecballium Elaterium (Eeti-Ii).
Protein Sci. V. 3 291 1994
PubMed-ID: 8003965
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TRYPSIN INHIBITOR II
    Chains: A
    Engineered: YES
    Organism Common: JUMPING CUCUMBER
    Organism Scientific: ECBALLIUM ELATERIUM
    Organism Taxid: 3679

 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 2LET)

(-) Sites  (1, 1)

NMR Structure (1, 1)
No.NameEvidenceResiduesDescription
1ACTUNKNOWNARG A:4 , LEU A:5NULL

(-) SS Bonds  (3, 3)

NMR Structure
No.Residues
1A:2 -A:19
2A:9 -A:21
3A:15 -A:27

(-) Cis Peptide Bonds  (0, 0)

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 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SQUASH_INHIBITORPS00286 Squash family of serine protease inhibitors signature.ITR2_ECBEL2-21  1A:2-21

(-) 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    
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SAPs(SNPs) PROSITE motifs Exons
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Chain A from PDB  Type:PROTEIN  Length:28
 aligned with ITR2_ECBEL | P12071 from UniProtKB/Swiss-Prot  Length:30

    Alignment length:28
                                    10        20        
            ITR2_ECBEL    1 GCPRILMRCKQDSDCLAGCVCGPNGFCG 28
               SCOP domains d2leta_ A: Trypsin inhibitor SCOP domains
               CATH domains ---------------------------- CATH domains
               Pfam domains Squash-2letA01 A:1-28        Pfam domains
         Sec.struct. author ......eee.hhhhh....eee...eee Sec.struct. author
                 SAPs(SNPs) ---------------------------- SAPs(SNPs)
                    PROSITE -SQUASH_INHIBITOR    ------- PROSITE
                 Transcript ---------------------------- Transcript
                  2let A  1 GCPRLLMRCKQDSDCLAGCVCGPNGFCG 28
                                    10        20
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 Classification and Annotation

(-) SCOP Domains  (1, 1)

NMR Structure
(-)
Class: Small proteins (3458)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2LET)

(-) Pfam Domains  (1, 1)

NMR Structure
(-)
Clan: Pept_Inhib_IE (9)

(-) Gene Ontology  (6, 6)

NMR Structure(hide GO term definitions)
Chain A   (ITR2_ECBEL | P12071)
molecular function
    GO:0004866    endopeptidase inhibitor activity    Stops, prevents or reduces the activity of an endopeptidase, any enzyme that hydrolyzes nonterminal peptide bonds in polypeptides.
    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
        ITR2_ECBEL | P12071: 1h9h 1h9i 1w7z 2c4b 2eti 2it7

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