OTUB1

Last updated
OTUB1
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases OTUB1 , OTB1, OTU1, HSPC263, OTU deubiquitinase, ubiquitin aldehyde binding 1
External IDs OMIM: 608337; MGI: 2147616; HomoloGene: 134542; GeneCards: OTUB1; OMA:OTUB1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_017670

NM_134150

RefSeq (protein)

NP_060140

NP_598911

Location (UCSC) Chr 11: 63.99 – 64 Mb Chr 19: 7.18 – 7.18 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Ubiquitin thioesterase OTUB1 also known as otubain-1 is an enzyme that in humans is encoded by the OTUB1 gene. [5] [6] Alternative splicing results in multiple transcript variants.

Contents

Function

Otubain-1 is a member of the OTU (ovarian tumor) superfamily of predicted cysteine proteases. The encoded protein is a highly specific ubiquitin iso-peptidase, and cleaves ubiquitin from branched poly-ubiquitin chains, being specific for lysine48 -linked polyubiquitin but not lysine63 -linked polyubiquitin. [7] It interacts with another ubiquitin protease and an E3 ubiquitin ligase that inhibits cytokine gene transcription in the immune system. It is proposed to function in specific ubiquitin-dependent pathways, possibly by providing an editing function for polyubiquitin chain growth. [6]

Interactions

OTUB1 has been shown to interact with RNF128 [8] and GNB2L1. [7]

Related Research Articles

<span class="mw-page-title-main">Deubiquitinating enzyme</span>

Deubiquitinating enzymes (DUBs), also known as deubiquitinating peptidases, deubiquitinating isopeptidases, deubiquitinases, ubiquitin proteases, ubiquitin hydrolases, or ubiquitin isopeptidases, are a large group of proteases that cleave ubiquitin from proteins. Ubiquitin is attached to proteins in order to regulate the degradation of proteins via the proteasome and lysosome; coordinate the cellular localisation of proteins; activate and inactivate proteins; and modulate protein-protein interactions. DUBs can reverse these effects by cleaving the peptide or isopeptide bond between ubiquitin and its substrate protein. In humans there are nearly 100 DUB genes, which can be classified into two main classes: cysteine proteases and metalloproteases. The cysteine proteases comprise ubiquitin-specific proteases (USPs), ubiquitin C-terminal hydrolases (UCHs), Machado-Josephin domain proteases (MJDs) and ovarian tumour proteases (OTU). The metalloprotease group contains only the Jab1/Mov34/Mpr1 Pad1 N-terminal+ (MPN+) (JAMM) domain proteases.

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<span class="mw-page-title-main">G3BP1</span> Protein-coding gene in the species Homo sapiens

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<span class="mw-page-title-main">UBE2N</span> Protein-coding gene in the species Homo sapiens

Ubiquitin-conjugating enzyme E2 N is a protein that in humans is encoded by the UBE2N gene.

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Bleomycin hydrolase is an enzyme that in humans is encoded by the BLMH gene.

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<span class="mw-page-title-main">RNF216</span> Protein-coding gene in the species Homo sapiens

E3 ubiquitin-protein ligase RNF216 is an enzyme that in humans is encoded by the RNF216 gene.

<span class="mw-page-title-main">USP4</span> Protein-coding gene in the species Homo sapiens

Ubiquitin specific protease 4 (USP4) is an enzyme that cleaves ubiquitin from a number of protein substrates. Prior to the standardization of nomenclature USP4 was known as UNP, and was one of the first deubiquitinating enzymes to be identified in mammals. In the mouse and human the USP4 protein is encoded by a gene containing 22 exons.

<span class="mw-page-title-main">RNF31</span> Protein-coding gene in the species Homo sapiens

RING finger protein 31 is a protein that in humans is encoded by the RNF31 gene.

<span class="mw-page-title-main">USP37</span> Protein-coding gene in the species Homo sapiens

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<span class="mw-page-title-main">UBE2M</span> Protein-coding gene in the species Homo sapiens

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<span class="mw-page-title-main">USP2</span> Protein-coding gene in the species Homo sapiens

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<span class="mw-page-title-main">UBE2R2</span> Protein-coding gene in the species Homo sapiens

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<span class="mw-page-title-main">USP51</span> Protein-coding gene in the species Homo sapiens

Ubiquitin carboxyl-terminal hydrolase 51 is an enzyme that in humans is encoded by the USP51 gene.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000167770 Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000024767 Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Balakirev MY, Tcherniuk SO, Jaquinod M, Chroboczek J (Apr 2003). "Otubains: a new family of cysteine proteases in the ubiquitin pathway". EMBO Rep. 4 (5): 517–22. doi:10.1038/sj.embor.embor824. PMC   1319179 . PMID   12704427.
  6. 1 2 "Entrez Gene: OTUB1 OTU domain, ubiquitin aldehyde binding 1".
  7. 1 2 Edelmann MJ, Iphöfer A, Akutsu M, Altun M, di Gleria K, Kramer HB, Fiebiger E, Dhe-Paganon S, Kessler BM (March 2009). "Structural basis and specificity of human otubain 1-mediated deubiquitination" (PDF). Biochem. J. 418 (2): 379–90. doi:10.1042/BJ20081318. PMID   18954305.
  8. Soares L, Seroogy C, Skrenta H, Anandasabapathy N, Lovelace P, Chung CD, Engleman E, Fathman CG (January 2004). "Two isoforms of otubain 1 regulate T cell anergy via GRAIL". Nat. Immunol. 5 (1): 45–54. doi:10.1038/ni1017. PMID   14661020. S2CID   27005972.

Further reading