BC000379
[Other Products]
UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
25,762 Da
NCBI Official Full Name
Homo sapiens ubiquitin B, mRNA
NCBI Official Synonym Full Names
ubiquitin B
NCBI Official Synonym Symbols
NCBI Protein Information
polyubiquitin-B
UniProt Protein Name
Polyubiquitin-B
UniProt Entry Name
UBB_HUMAN
NCBI Summary for UBB
This gene encodes ubiquitin, one of the most conserved proteins known. Ubiquitin has a major role in targeting cellular proteins for degradation by the 26S proteosome. It is also involved in the maintenance of chromatin structure, the regulation of gene expression, and the stress response. Ubiquitin is synthesized as a precursor protein consisting of either polyubiquitin chains or a single ubiquitin moiety fused to an unrelated protein. 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. An aberrant form of this protein has been detected in patients with Alzheimer's disease and Down syndrome. Pseudogenes of this gene are located on chromosomes 1, 2, 13, and 17. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]
UniProt Comments for UBB
UBB: Ubiquitin exists either covalently attached to another protein, or free (unanchored). When covalently bound, it is conjugated to target proteins via an isopeptide bond either as a monomer (monoubiquitin), a polymer linked via different Lys residues of the ubiquitin (polyubiquitin chains) or a linear polymer linked via the initiator Met of the ubiquitin (linear polyubiquitin chains). Polyubiquitin chains, when attached to a target protein, have different functions depending on the Lys residue of the ubiquitin that is linked: Lys-6-linked may be involved in DNA repair; Lys-11-linked is involved in ERAD (endoplasmic reticulum-associated degradation) and in cell-cycle regulation; Lys-29-linked is involved in lysosomal degradation; Lys-33-linked is involved in kinase modification; Lys-48-linked is involved in protein degradation via the proteasome; Lys-63-linked is involved in endocytosis, DNA-damage responses as well as in signaling processes leading to activation of the transcription factor NF-kappa-B. Linear polymer chains formed via attachment by the initiator Met lead to cell signaling. Ubiquitin is usually conjugated to Lys residues of target proteins, however, in rare cases, conjugation to Cys or Ser residues has been observed. When polyubiquitin is free (unanchored-polyubiquitin), it also has distinct roles, such as in activation of protein kinases, and in signaling. Belongs to the ubiquitin family.
Protein type: Cell development/differentiation; Cell cycle regulation; Ubiquitin-like modifier; Apoptosis; Transcription regulation; Motility/polarity/chemotaxis
Chromosomal Location of Human Ortholog: 17p12-p11.2
Cellular Component: cell soma; cytosol; endosome membrane; extracellular space; mitochondrion; neuron projection; nucleoplasm; nucleus; plasma membrane
Molecular Function: protein binding
Biological Process: activation of MAPK activity; activation of NF-kappaB transcription factor; anaphase-promoting complex-dependent proteasomal ubiquitin-dependent protein catabolic process; bypass DNA synthesis; cellular protein metabolic process; DNA damage response, detection of DNA damage; DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest; endosome transport; error-prone postreplication DNA repair; fibroblast growth factor receptor signaling pathway; G2/M transition of mitotic cell cycle; glycogen biosynthetic process; I-kappaB kinase/NF-kappaB cascade; innate immune response; JNK cascade; macroautophagy; MAPKKK cascade; mitochondrion transport along microtubule; MyD88-dependent toll-like receptor signaling pathway; MyD88-independent toll-like receptor signaling pathway; negative regulation of apoptosis; negative regulation of epidermal growth factor receptor signaling pathway; negative regulation of interferon type I production; negative regulation of transcription from RNA polymerase II promoter; negative regulation of transforming growth factor beta receptor signaling pathway; negative regulation of ubiquitin-protein ligase activity during mitotic cell cycle; neurite morphogenesis; Notch signaling pathway; nucleotide-excision repair, DNA damage recognition; nucleotide-excision repair, DNA duplex unwinding; nucleotide-excision repair, DNA gap filling; nucleotide-excision repair, DNA incision; nucleotide-excision repair, DNA incision, 5'-to lesion; nucleotide-excision repair, preincision complex assembly; positive regulation of apoptosis; positive regulation of epidermal growth factor receptor signaling pathway; positive regulation of I-kappaB kinase/NF-kappaB cascade; positive regulation of protein ubiquitination; positive regulation of transcription from RNA polymerase II promoter; positive regulation of ubiquitin-protein ligase activity during mitotic cell cycle; proteasomal ubiquitin-dependent protein catabolic process; protein polyubiquitination; protein ubiquitination during ubiquitin-dependent protein catabolic process; regulation of interferon type I production; regulation of mitochondrial membrane potential; regulation of mRNA stability; stimulatory C-type lectin receptor signaling pathway; stress-activated MAPK cascade; T cell receptor signaling pathway; transcription-coupled nucleotide-excision repair; transforming growth factor beta receptor signaling pathway; tumor necrosis factor-mediated signaling pathway; viral infectious cycle; virus assembly; Wnt receptor signaling pathway; Wnt receptor signaling pathway, planar cell polarity pathway
Disease: Cleft Palate, Isolated
Precautions
All of MyBioSource's Products are for scientific laboratory research purposes and are not for diagnostic, therapeutics, prophylactic or in vivo use. Through your purchase, you expressly represent and warrant to MyBioSource that you will properly test and use any Products purchased from MyBioSource in accordance with industry standards. MyBioSource and its authorized distributors reserve the right to refuse to process any order where we reasonably believe that the intended use will fall outside of our acceptable guidelines.
Disclaimer
While every efforts were made to ensure the accuracy of the information provided in this datasheet, MyBioSource will not be liable for any omissions or errors contained herein. MyBioSource reserves the right to make changes to this datasheet at any time without prior notice. It is the responsibility of the customer to report product performance issues to MyBioSource within 30 days of receipt of the product. Please visit our Terms & Conditions page for more information.
Pathways associated with UBB cdna clone
Diseases associated with UBB cdna clone
Organs/Tissues associated with UBB cdna clone
|