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  4. Recombinant Human Polyubiquitin-B (UBB)

Recombinant Human Polyubiquitin-B (UBB)

  • 货号：
    CSB-YP316022HU
  • 规格：
  • 来源：
    Yeast
  • 其他：
  • 货号：
    CSB-EP316022HU
  • 规格：
  • 来源：
    E.coli
  • 其他：
  • 货号：
    CSB-EP316022HU-B
  • 规格：
  • 来源：
    E.coli
  • 共轭：
    Avi-tag Biotinylated

    E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.

  • 其他：
  • 货号：
    CSB-BP316022HU
  • 规格：
  • 来源：
    Baculovirus
  • 其他：
  • 货号：
    CSB-MP316022HU
  • 规格：
  • 来源：
    Mammalian cell
  • 其他：

产品详情

  • 纯度：
    >85% (SDS-PAGE)
  • 基因名：
  • Uniprot No.：
  • 别名：
    UBB; UBB_HUMAN; Ubiquitin
  • 种属：
    Homo sapiens (Human)
  • 蛋白长度：
    full length protein
  • 表达区域：
    1-76
  • 氨基酸序列
    MQIFVKTLTG KTITLEVEPS DTIENVKAKI QDKEGIPPDQ QRLIFAGKQL EDGRTLSDYN IQKESTLHLV LRLRGG
  • 蛋白标签：
    Tag type will be determined during the manufacturing process.
    The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
  • 产品提供形式：
    Lyophilized powder
    Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
  • 复溶：
    We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
  • 储存条件：
    Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
  • 保质期：
    The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
    Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
  • 货期：
    Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
    Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
  • 注意事项：
    Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
  • Datasheet ：
    Please contact us to get it.

产品评价

靶点详情

  • 功能：
    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.
  • 基因功能参考文献：
    1. This study demonstrated that the Deposition of mutant ubiquitin in parkinsonism-dementia complex of Guam. PMID: 29122008
    2. The polyubiquitinated forms of the neurodegenerative ubiquitin mutant UBB have been characterized. PMID: 27861798
    3. The C-terminal five residues of Ub, RLRGG, are responsible for the interaction with the Middle-East respiratory syndrome coronavirus (MERS-CoV) papain-like protease. PMID: 27245450
    4. A new crystallographic structure of human ubiquitin solved from crystals grown in the presence of magnesium. PMID: 26750481
    5. Data suggest that both human ubiquitin and HFBII (hydrophobin-II from Trichoderma reesei) exhibit a critical surface hydration level (or effective hydrophobic interface at the surface) at which percolation transition of water network occurs. PMID: 25204743
    6. UbB was significantly increased in prolonged Trichostatin A-selected HeLa cells and it played a key role in the maintenance of cervical cancer stem-like cells PMID: 24367661
    7. downregulation of ubiquitin through Ubb-KD is a potential anti-cancer treatment by inhibiting ubiquitination at multiple sites related to oncogenic pathways and by weakening the ability of cancer cells to overcome increased stress. PMID: 24022007
    8. A significant decrease in amyloid beta deposition and plaque formation suggests a role for the ubiquitin-proteasome system in the amyloid pathology of Alzheimer's disease. PMID: 22797007
    9. age-dependent accumulation of Ubb(+1) , and how Ubb(+1) -mediated proteasome inhibition may contribute to Alzheimer's disease. [review] PMID: 22082077
    10. Studies indicate that biomedical research on ubiquitin moves into translational research and drug discovery. PMID: 21544573
    11. Studies indicate that DUBs recycle ubiquitin by processing polyubiquitin chains to generate free ubiquitin, and can be regulated by ubiquitination or phosphorylation. PMID: 21480003
    12. analysis of orexin receptor 1 and 2 -arrestin-ubiquitin complexes PMID: 21378163
    13. The results of this study demonstrated that the UBB mutation caused the subtle defect in spatial reference memory formation, caused by a decrease in forebrain proteasome activity. PMID: 21059367
    14. Studies indicate that indicating that the inhibition of the ubiquitin-proteasome system could be used as a novel approach for cancer therapy. PMID: 20491623
    15. Results suggest that the interaction between E2-25K and UBB(+1) is critical for the synthesis and accumulation of UBB(+1)-anchored polyubiquitin, which results in proteasomal inhibition and neuronal cell death. PMID: 20826778
    16. Molecular misreading of the ubiquitin B gene and hepatic mallory body formation. PMID: 12055595
    17. expression of UBB+1 causes proteasome inhibition and induces expression of heat-shock proteins; although UBB+1-expressing cells have a compromised ubiquitin-proteasome system, they are protected against oxidative stress PMID: 12871580
    18. The temporal localization of frame-shift ubiquitin-B and amyloid precursor protein, and complement proteins in the brain of non-demented control patients with increasing Alzheimer's disease pathology. PMID: 12893422
    19. In sporadic inclusion-body myositis, UBB+1 may be pathogenic by inhibiting proteasome, thereby promoting accumulation of cytotoxic misfolded amyloid-beta and phosphorylated-tau. PMID: 15452314
    20. UBB+1, a mutant form of ubiquitin was present in the majority of NFTs, whereas co-existence of alpha-synuclein and UBB+1 was found in only a few neurons in cases of combined multiple system atrophy and Alzheimer's disease. PMID: 17237936
    21. K63-polyubiquitination guards against chemical carcinogenesis by preventing mutagenesis and thus contributing to genomic stability PMID: 17395554
    22. UBB(+1), at low expression levels, is efficiently degraded by the proteasome, but at high levels, the proteasome failed to degrade UBB(+1), causing its accumulation. PMID: 17405812
    23. analyse the expression of mutant ubiquitin (UBB+1), in muscle biopsies from patients suffering from myotilinopathy and desminopathy PMID: 17931355
    24. The expression a mutant human UBB analogous (UB14) in yeast markedly enhanced cellular susceptibility to toxic protein aggregates. PMID: 19214209

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  • 亚细胞定位：
    [Ubiquitin]: Cytoplasm. Nucleus.
  • 蛋白家族：
    Ubiquitin family
  • 数据库链接：

    HGNC: 12463

    OMIM: 191339

    KEGG: hsa:7314

    STRING: 9606.ENSP00000304697

    UniGene: Hs.356190