Homo sapiens Protein: HM13
Summary
InnateDB Protein IDBP-62956.7
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol HM13
Protein Name histocompatibility (minor) 13
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000341347
InnateDB Gene IDBG-62948 (HM13)
Protein Structure
UniProt Annotation
Function Catalyzes intramembrane proteolysis of some signal peptides after they have been cleaved from a preprotein, resulting in the release of the fragment from the ER membrane into the cytoplasm. Required to generate lymphocyte cell surface (HLA-E) epitopes derived from MHC class I signal peptides. May play a role in graft rejection (By similarity). May be necessary for the removal of the signal peptide that remains attached to the hepatitis C virus core protein after the initial proteolytic processing of the polyprotein. Involved in the intramembrane cleavage of the integral membrane protein PSEN1. {ECO:0000250, ECO:0000269PubMed:11714810, ECO:0000269PubMed:12077416, ECO:0000269PubMed:12145199, ECO:0000269PubMed:14741365}.
Subcellular Localization Endoplasmic reticulum membrane {ECO:0000250}; Multi-pass membrane protein {ECO:0000250}.Isoform 4: Cell membrane {ECO:0000250}; Multi-pass membrane protein {ECO:0000250}.
Disease Associations
Tissue Specificity Widely expressed with highest levels in kidney, liver, placenta, lung, leukocytes and small intestine and reduced expression in heart and skeletal muscle. Expressed abundantly in the CNS with highest levels in thalamus and medulla. {ECO:0000269PubMed:12139484, ECO:0000269PubMed:12972007}.
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 16 experimentally validated interaction(s) in this database.
Experimentally validated
Total 16 [view]
Protein-Protein 16 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Gene Ontology

Molecular Function
Accession GO Term
GO:0004190 aspartic-type endopeptidase activity
Biological Process
Cellular Component
GO:0016021 integral component of membrane
Protein Structure and Domains
PDB ID
InterPro IPR006639 Presenilin/signal peptide peptidase
IPR007369 Peptidase A22B, signal peptide peptidase
PFAM PF04258
PRINTS
PIRSF
SMART SM00730
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt
PhosphoSite PhosphoSite-Q8TCT9
TrEMBL
UniProt Splice Variant
Entrez Gene 81502
UniGene
RefSeq
HUGO HGNC:16435
OMIM 607106
CCDS
HPRD 06166
IMGT
EMBL
GenPept