Homo sapiens Gene: CSTA
Summary
InnateDB Gene IDBG-52476.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol CSTA
Gene Name cystatin A (stefin A)
Synonyms AREI; STF1; STFA;
Species Homo sapiens
Ensembl Gene ENSG00000121552
Encoded Proteins
cystatin A (stefin A)
cystatin A (stefin A)
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
Entrez Gene
Summary The cystatin superfamily encompasses proteins that contain multiple cystatin-like sequences. Some of the members are active cysteine protease inhibitors, while others have lost or perhaps never acquired this inhibitory activity. There are three inhibitory families in the superfamily, including the type 1 cystatins (stefins), type 2 cystatins, and kininogens. This gene encodes a stefin that functions as a cysteine protease inhibitor, forming tight complexes with papain and the cathepsins B, H, and L. The protein is one of the precursor proteins of cornified cell envelope in keratinocytes and plays a role in epidermal development and maintenance. Stefins have been proposed as prognostic and diagnostic tools for cancer. [provided by RefSeq, Jul 2008]
Gene Information
Type Protein coding
Genomic Location Chromosome 3:122325244-122341972
Strand Forward strand
Band q21.1
Transcripts
ENST00000264474 ENSP00000264474
ENST00000479204 ENSP00000418891
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 23 experimentally validated interaction(s) in this database.
Experimentally validated
Total 23 [view]
Protein-Protein 23 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Gene Ontology

Molecular Function
Accession GO Term
GO:0002020 protease binding
GO:0004869 cysteine-type endopeptidase inhibitor activity
GO:0005198 structural molecule activity
GO:0030674 protein binding, bridging
Biological Process
GO:0010466 negative regulation of peptidase activity
GO:0010951 negative regulation of endopeptidase activity
GO:0016337 single organismal cell-cell adhesion
GO:0018149 peptide cross-linking
GO:0030216 keratinocyte differentiation
GO:0045861 negative regulation of proteolysis
Cellular Component
GO:0001533 cornified envelope
GO:0005615 extracellular space
GO:0005622 intracellular
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0070062 extracellular vesicular exosome
Orthologs
No orthologs found for this gene
Cross-References
SwissProt
TrEMBL C9J0E4
UniProt Splice Variant
Entrez Gene 1475
UniGene
RefSeq NM_005213
HUGO HGNC:2481
OMIM 184600
CCDS CCDS3011
HPRD 01697
IMGT
EMBL AC083798
GenPept
RNA Seq Atlas 1475