UBE2K_HUMAN

Source: PM19886704
PM23856902
Marked as 'Non-membrane protein'
Confidence: low (only semi-automatic identification from reviews) Search PubMed for
(RBC AND this entry)
Gene names: UBE2K , HIP2, LIG
Protein names and data: UBE2K_HUMAN , Ubiquitin-conjugating enzyme E2 K; 6.3.2.19 , Huntingtin-interacting protein 2; HIP-2; Ubiquitin carrier protein; Ubiquitin-conjugating enzyme E2-25 kDa; Ubiquitin-conjugating enzyme E2(25K); Ubiquitin-conjugating enzyme E2-25K; Ubiquitin-protein ligase Lenght: 200 a.a.
Mass: 22407 Da
fasta formatted sequence
Function: Accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. In vitro, in the presence or in the absence of BRCA1-BARD1 E3 ubiquitin-protein ligase complex, catalyzes the synthesis of 'Lys-48'-linked polyubiquitin chains. Does not transfer ubiquitin directly to but elongates monoubiquitinated substrate protein. Mediates the selective degradation of short-lived and abnormal proteins, such as the endoplasmic reticulum-associated degradation (ERAD) of misfolded lumenal proteins. Ubiquitinates huntingtin. May mediate foam cell formation by the suppression of apoptosis of lipid-bearing macrophages through ubiquitination and subsequence degradation of p53/TP53. Proposed to be involved in ubiquitination and proteolytic processing of NF-kappa-B; in vitro supports ubiquitination of NFKB1. In case of infection by cytomegaloviruses may be involved in the US11-dependent degradation of MHC class I heavy chains following their export from the ER to the cytosol. In case of viral infections may be involved in the HPV E7 protein- dependent degradation of RB1.
Catalytic activity: ATP + ubiquitin + protein lysine = AMP + diphosphate + protein N-ubiquityllysine.
Pathway: Protein modification; protein ubiquitination.
Cellular location: Cytoplasm (By similarity).
Tissue specificity: Expressed in all tissues tested, including spleen, thymus, prostate, testis, ovary, small intestine, colon, peripheral blood leukocytes, T-lymphocytes, monocytes, granulocytes and bone marrow mononuclear cells. Highly expressed in brain, with highest levels found in cortex and striatum and at lower levels in cerebellum and brainstem.

Database cross-references

UniProt: P61086
Ensembl: ENST00000261427
Ensembl: ENST00000445950
Ensembl: ENST00000503368
MIM: 602846
neXtProt: NX_P61086
Antibodypedia: P61086 (may not find the protein thus also not any antibody)
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