Ubiquitin B

Last updated
UBB
Protein UBB PDB 1aar.png
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases UBB , HEL-S-50, Ubiquitin B
External IDs OMIM: 191339; MGI: 98888; HomoloGene: 75104; GeneCards: UBB; OMA:UBB - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_011664
NM_001313984

RefSeq (protein)

NP_001300913
NP_035794

Location (UCSC) Chr 17: 16.38 – 16.38 Mb Chr 11: 62.44 – 62.44 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Ubiquitin is a protein that in humans is encoded by the UBB gene. [5]

Function

Ubiquitin is one of the most conserved proteins known in eukaryotic organisms. Ubiquitin is required for ATP-dependent, non-lysosomal intracellular protein degradation of abnormal proteins and normal proteins with a rapid turnover. Ubiquitin is covalently bound to proteins to be degraded, and presumably labels these proteins for degradation. Ubiquitin also binds to histone H2A in actively transcribed regions but does not cause histone H2A degradation, suggesting that ubiquitin is also involved in regulation of gene expression. This gene consists of three direct repeats of the ubiquitin coding sequence with no spacer sequence. Consequently, the protein is expressed as a polyubiquitin precursor with a final amino acid after the last repeat. Aberrant form of this protein (UBB+1) has been noticed in patients with Alzheimer's disease, Down syndrome, other tauopathies (e.g. Pick's disease) and polyglutamine disease (e.g. Huntington's disease). [6] [7]

Related Research Articles

<span class="mw-page-title-main">Ubiquitin</span> Regulatory protein found in most eukaryotic tissues

Ubiquitin is a small regulatory protein found in most tissues of eukaryotic organisms, i.e., it is found ubiquitously. It was discovered in 1975 by Gideon Goldstein and further characterized throughout the late 1970s and 1980s. Four genes in the human genome code for ubiquitin: UBB, UBC, UBA52 and RPS27A.

<span class="mw-page-title-main">NPM1</span> Protein-coding gene in humans

Nucleophosmin (NPM), also known as nucleolar phosphoprotein B23 or numatrin, is a protein that in humans is encoded by the NPM1 gene.

<span class="mw-page-title-main">HIST1H3B</span> Protein-coding gene in the species Homo sapiens

Histone H3.1 is a protein that in humans is encoded by the H3C2 gene.

<span class="mw-page-title-main">Myocyte-specific enhancer factor 2A</span> Protein-coding gene in the species Homo sapiens

Myocyte-specific enhancer factor 2A is a protein that in humans is encoded by the MEF2A gene. MEF2A is a transcription factor in the Mef2 family. In humans it is located on chromosome 15q26. Certain mutations in MEF2A cause an autosomal dominant form of coronary artery disease and myocardial infarction.

<span class="mw-page-title-main">Histone H2A.Z</span> Protein-coding gene in the species Homo sapiens

Histone H2A.Z is a protein that in humans is encoded by the H2AZ1 gene.

Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Nucleosomes consist of approximately 146 bp of DNA wrapped around a histone octamer composed of pairs of each of the four core histones. The chromatin fiber is further compacted through the interaction of a linker histone, H1, with the DNA between the nucleosomes to form higher order chromatin structures. The H2AFZ gene encodes a replication-independent member of the histone H2A family that is distinct from other members of the family. Studies in mice have shown that this particular histone is required for embryonic development and indicate that lack of functional histone H2A leads to embryonic lethality.

<span class="mw-page-title-main">40S ribosomal protein S27a</span> Protein-coding gene in the species Homo sapiens

40S ribosomal protein S27a is a protein that in humans is encoded by the RPS27A gene.

<span class="mw-page-title-main">Ubiquitin A-52 residue ribosomal protein fusion product 1</span> Human protein

60S ribosomal protein L40 (RPL40) is a protein that in humans is encoded by the UBA52 gene.

<span class="mw-page-title-main">SFRS3</span> Protein-coding gene in the species Homo sapiens

Splicing factor, arginine/serine-rich 3 is a protein that in humans is encoded by the SFRS3 gene.

<span class="mw-page-title-main">HIST1H4I</span> Protein-coding gene in the species Homo sapiens

Histone H4 is a protein that, in humans, is encoded by the HIST1H4I gene.

<span class="mw-page-title-main">HIST1H2BJ</span> Protein-coding gene in the species Homo sapiens

Histone H2B type 1-J is a protein that in humans is encoded by the HIST1H2BJ gene.

<span class="mw-page-title-main">HIST1H2BK</span> Protein-coding gene in the species Homo sapiens

Histone H2B type 1-K is a protein that in humans is encoded by the HIST1H2BK gene.

<span class="mw-page-title-main">HIST1H1B</span> Protein-coding gene in the species Homo sapiens

Histone H1.5 is a protein that in humans is encoded by the HIST1H1B gene.

<span class="mw-page-title-main">HMGN2</span> Protein-coding gene in the species Homo sapiens

Non-histone chromosomal protein HMG-17 is a protein that in humans is encoded by the HMGN2 gene.

<span class="mw-page-title-main">GFI1</span> Protein-coding gene in the species Homo sapiens

Zinc finger protein Gfi-1 is a transcriptional repressor that in humans is encoded by the GFI1 gene. It is important normal hematopoiesis.

<span class="mw-page-title-main">WD repeat-containing protein 77</span> Protein-coding gene in the species Homo sapiens

Methylosome protein 50 is a protein that in humans is encoded by the WDR77 gene.

<span class="mw-page-title-main">UBE2V1</span> Protein-coding gene in the species Homo sapiens

Ubiquitin-conjugating enzyme E2 variant 1 is a protein that in humans is encoded by the UBE2V1 gene.

<span class="mw-page-title-main">HIST1H2AB</span> Protein-coding gene in the species Homo sapiens

Histone H2A type 1-B/E is a protein that in humans is encoded by the HIST1H2AB gene.

<span class="mw-page-title-main">TNP1</span> Protein-coding gene in the species Homo sapiens

Spermatid nuclear transition protein 1 is a protein that in humans is encoded by the TNP1 gene.

<span class="mw-page-title-main">POLE3</span> Protein-coding gene in the species Homo sapiens

DNA polymerase epsilon subunit 3 is an enzyme that in humans is encoded by the POLE3 gene.

<span class="mw-page-title-main">PPM1G</span> Protein-coding gene in the species Homo sapiens

Protein phosphatase 1G is an enzyme that in humans is encoded by the PPM1G gene.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000170315 Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000019505 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. Webb GC, Baker RT, Fagan K, Board PG (Mar 1990). "Localization of the human UbB polyubiquitin gene to chromosome band 17p11.1-17p12". Am J Hum Genet. 46 (2): 308–15. PMC   1684968 . PMID   2154095.
  6. Fischer DF, De Vos RA, Van Dijk R, De Vrij FM, Proper EA, Sonnemans MA, Verhage MC, Sluijs JA, Hobo B, Zouambia M, Steur EN, Kamphorst W, Hol EM, Van Leeuwen FW (Nov 2003). "Disease-specific accumulation of mutant ubiquitin as a marker for proteasomal dysfunction in the brain". FASEB J. 17 (14): 2014–2024. doi: 10.1096/fj.03-0205com . PMID   14597671. S2CID   10932825.
  7. "Entrez Gene: UBB ubiquitin B".

Further reading