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(-) Description

Authors :  S. Tate, N. U. Tate, T. Ushioda, T. Samejima, M. Kainosho
Date :  24 Aug 95  (Deposition) - 07 Dec 95  (Release) - 24 Feb 09  (Revision)
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A
Keywords :  Proteinase Inhibitor (Cysteine) (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  S. Tate, T. Ushioda, N. Utsunomiya-Tate, K. Shibuya, Y. Ohyama, Y. Nakano, H. Kaji, F. Inagaki, T. Samejima, M. Kainosho
Solution Structure Of A Human Cystatin A Variant, Cystatin A2-98 M65L, By Nmr Spectroscopy. A Possible Role Of The Interactions Between The N- And C-Termini To Maintain The Inhibitory Active Form Of Cystatin A.
Biochemistry V. 34 14637 1995
PubMed-ID: 7578072  |  Reference-DOI: 10.1021/BI00045A004
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CYSTATIN A
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymSTEFIN A

 Structural Features

(-) Chains, Units

NMR Structure 

Summary Information (see also Sequences/Alignments below)

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

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

(-) Sites  (0, 0)

(no "Site" information available for 1CYV)

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (1, 1)

NMR Structure (1, 1)
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
1CYSTATINPS00287 Cysteine proteases inhibitors signature.CYTA_HUMAN45-58  1A:45-58

(-) Exons   (3, 3)

NMR Structure (3, 3)
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength

(-) 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:98
 aligned with CYTA_HUMAN | P01040 from UniProtKB/Swiss-Prot  Length:98

    Alignment length:98
                                    10        20        30        40        50        60        70        80        90        
               SCOP domains d1cyva_ A: Cystatin A (stefin A)                                                                   SCOP domains
               CATH domains 1cyvA00 A:1-98  [code=3.10.450.10, no name defined]                                                CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......eeee...hhhhhhhh...hhhhh.......eee.eeeeee..eeeeeeeeee...eeeeeeeeee.......eee.eeee........... Sec.struct. author
                 SAPs(SNPs) -----------------------------------------------------------------------------------------------M-- SAPs(SNPs)
                    PROSITE --------------------------------------------CYSTATIN      ---------------------------------------- PROSITE
               Transcript 1 Exon 1.1a  PDB: A:1-22Exon 1.2a  PDB: A:23-56           Exon 1.3  PDB: A:57-98 UniProt: 57-98      Transcript 1
                                    10        20        30        40        50        60        70        80        90        

   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

(-) CATH Domains  (1, 1)

NMR Structure
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (19, 19)

NMR Structure(hide GO term definitions)
Chain A   (CYTA_HUMAN | P01040)
molecular function
    GO:0004869    cysteine-type endopeptidase inhibitor activity    Stops, prevents or reduces the activity of a cysteine-type endopeptidase, any enzyme that hydrolyzes peptide bonds in polypeptides by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
    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:0002020    protease binding    Interacting selectively and non-covalently with any protease or peptidase.
    GO:0030674    protein binding, bridging    The binding activity of a molecule that brings together two or more protein molecules, or a protein and another macromolecule or complex, through a selective, non-covalent, often stoichiometric interaction, permitting those molecules to function in a coordinated way.
    GO:0005198    structural molecule activity    The action of a molecule that contributes to the structural integrity of a complex or its assembly within or outside a cell.
biological process
    GO:0007155    cell adhesion    The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.
    GO:0030216    keratinocyte differentiation    The process in which a relatively unspecialized cell acquires specialized features of a keratinocyte.
    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:0045861    negative regulation of proteolysis    Any process that stops, prevents, or reduces the frequency, rate or extent of the hydrolysis of a peptide bond or bonds within a protein.
    GO:0018149    peptide cross-linking    The formation of a covalent cross-link between or within protein chains.
    GO:0016337    single organismal cell-cell adhesion    The attachment of one cell to another cell via adhesion molecules, where both cells are part of the same organism.
cellular component
    GO:0001533    cornified envelope    A type of plasma membrane that has been modified through addition of distinct intracellular and extracellular components, including ceramide, found in cornifying epithelial cells (corneocytes).
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    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:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
    GO:0005622    intracellular    The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.


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 Related Entries

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

        CYTA_HUMAN | P010401cyu 1dvc 1dvd 1gd3 1gd4 1n9j 1nb3 1nb5 3k9m 3kfq 3kse

(-) Related Entries Specified in the PDB File