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(-) Description

Title :  SOLUTION STRUCTURE OF R-ELAFIN, A SPECIFIC INHIBITOR OF ELASTASE, NMR, 11 STRUCTURES
 
Authors :  C. Francart, M. Dauchez, A. J. P. Alix, G. Lippens
Date :  01 Apr 97  (Deposition) - 07 Jul 97  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (11x)
Keywords :  Serine Protease Inhibitor, R-Elafin, Elastase Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  C. Francart, M. Dauchez, A. J. Alix, G. Lippens
Solution Structure Of R-Elafin, A Specific Inhibitor Of Elastase.
J. Mol. Biol. V. 268 666 1997
PubMed-ID: 9171290  |  Reference-DOI: 10.1006/JMBI.1997.0983
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - R-ELAFIN
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Other Details: THE POLYPEPTIDE MAY BE OBTAINED BY EXPRESSION USING PLASMIDIC EXPRESSION SYSTEMS IN HOSTS SUCH AS ESCHERICHIA COLI AND YEAST, THE POLYPEPTIDE BEING ALSO OBTAINABLE FROM PSORIATIC PLAQUES. PATENT NUMBER 5, 464,822 DATE OF PATENT NOV. 7, 1995 BY CHRISTOPHERS E., WIEDOW O., SCHRODER J.M. THE PROTEIN WAS PROVIDED BY ZENECA PHARMACEUTICALS.

 Structural Features

(-) Chains, Units

  
NMR Structure (11x): 

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 2REL)

(-) Sites  (0, 0)

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(-) SS Bonds  (4, 4)

NMR Structure
No.Residues
1A:16 -A:45
2A:23 -A:49
3A:32 -A:44
4A:38 -A:53

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2REL)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2REL)

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1WAPPS51390 WAP-type 'four-disulfide core' domain profile.ELAF_HUMAN69-117  1A:9-57

(-) Exons   (1, 1)

NMR Structure (1, 1)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENST000002439241ENSE00000844914chr20:43803517-43803642126ELAF_HUMAN1-27270--
1.2ENST000002439242ENSE00000844915chr20:43804502-43804777276ELAF_HUMAN27-117911A:1-5757
1.3ENST000002439243ENSE00001041476chr20:43805011-43805185175ELAF_HUMAN-00--

(-) 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:57
 aligned with ELAF_HUMAN | P19957 from UniProtKB/Swiss-Prot  Length:117

    Alignment length:57
                                    70        80        90       100       110       
           ELAF_HUMAN    61 AQEPVKGPVSTKPGSCPIILIRCAMLNPPNRCLKDTDCPGIKKCCEGSCGMACFVPQ 117
               SCOP domains d2rela_ A: Elafin, elastase-specific inhibitor            SCOP domains
               CATH domains 2relA00 A:1-57 R-elafin                                   CATH domains
               Pfam domains Cementoin-2WAP-2relA01 A:12-56                          - Pfam domains
         Sec.struct. author .........................................eeeee....eeeee.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------WAP  PDB: A:9-57 UniProt: 69-117                  PROSITE
               Transcript 1 Exon 1.2  PDB: A:1-57 UniProt: 27-117 [INCOMPLETE]        Transcript 1
                 2rel A   1 AQEPVKGPVSTKPGSCPIILIRCAMLNPPNRCLKDTDCPGIKKCCEGSCGMACFVPQ  57
                                    10        20        30        40        50
   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: Small proteins (3458)

(-) CATH Domains  (1, 1)

NMR Structure
(-)
Class: Few Secondary Structures (1120)

(-) Pfam Domains  (2, 2)

NMR Structure
(-)
Clan: Protease_inhib (47)
(-)
Clan: no clan defined [family: Cementoin] (1)

(-) Gene Ontology  (9, 9)

NMR Structure(hide GO term definitions)
Chain A   (ELAF_HUMAN | P19957)
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:0007620    copulation    The act of sexual union between male and female, involving the transfer of sperm.
    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:0070062    extracellular exosome    A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
    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.
    GO:0005578    proteinaceous extracellular matrix    A layer consisting mainly of proteins (especially collagen) and glycosaminoglycans (mostly as proteoglycans) that forms a sheet underlying or overlying cells such as endothelial and epithelial cells. The proteins are secreted by cells in the vicinity. An example of this component is found in Mus musculus.

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 Related Entries

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        ELAF_HUMAN | P19957: 1fle

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