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  4. Recombinant Human Glutaminyl-peptide cyclotransferase (QPCT)

Recombinant Human Glutaminyl-peptide cyclotransferase (QPCT)

  • 货号：
    CSB-YP019135HU
  • 规格：
  • 来源：
    Yeast
  • 其他：
  • 货号：
    CSB-EP019135HU-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：

产品详情

  • 纯度：
    >85% (SDS-PAGE)
  • 基因名：
    QPCT
  • Uniprot No.：
  • 别名：
    5730422A13Rik; EC; GCT; Glutaminyl cyclase; Glutaminyl peptide cyclotransferase; Glutaminyl tRNA cyclotransferase; Glutaminyl-peptide cyclotransferase; Glutaminyl-tRNA cyclotransferase; Glutamyl cyclase; QC; qpct; QPCT_HUMAN; sQC
  • 种属：
    Homo sapiens (Human)
  • 蛋白长度：
    Full Length of Mature Protein
  • 表达区域：
    29-361
  • 氨基酸序列
    VS PSASAWPEEK NYHQPAILNS SALRQIAEGT SISEMWQNDL QPLLIERYPG SPGSYAARQH IMQRIQRLQA DWVLEIDTFL SQTPYGYRSF SNIISTLNPT AKRHLVLACH YDSKYFSHWN NRVFVGATDS AVPCAMMLEL ARALDKKLLS LKTVSDSKPD LSLQLIFFDG EEAFLHWSPQ DSLYGSRHLA AKMASTPHPP GARGTSQLHG MDLLVLLDLI GAPNPTFPNF FPNSARWFER LQAIEHELHE LGLLKDHSLE GRYFQNYSYG GVIQDDHIPF LRRGVPVLHL IPSPFPEVWH TMDDNEENLD ESTIDNLNKI LQVFVLEYLH L
  • 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：
    Responsible for the biosynthesis of pyroglutamyl peptides. Has a bias against acidic and tryptophan residues adjacent to the N-terminal glutaminyl residue and a lack of importance of chain length after the second residue. Also catalyzes N-terminal pyroglutamate formation. In vitro, catalyzes pyroglutamate formation of N-terminally truncated form of APP amyloid-beta peptides [Glu-3]-amyloid-beta. May be involved in the N-terminal pyroglutamate formation of several amyloid-related plaque-forming peptides.
  • 基因功能参考文献：
    1. The addition of QC activity to core diagnostic CSF biomarkers may be of specific interest in clinical cases with discordant imaging and biochemical biomarker results. PMID: 28587659
    2. these findings demonstrate a significant association between common single nucleotide polymorphism within QPCT gene and schizophrenia risk in a Han Chinese population. PMID: 26572640
    3. the genetic risk of QPCT gene for schizophrenia also exists in the Han Chinese population. PMID: 26492838
    4. observations provide evidence for an involvement of QC in Alzheimer's disease pathogenesis and cognitive decline by QC-catalyzed pGlu-Abeta formation PMID: 24164736
    5. this study demonistrated that QPCT mRNAand protein from mononuclear cells correlated with theseverity of dementia. PMID: 23207485
    6. Upregulation of QPCT expression is associated with thyroid carcinomas. PMID: 23183267
    7. This study presents a first comparison of two mammalian QCs (human and mouse) containing typical, conserved post-translational modifications. PMID: 21671571
    8. The resilts of this studt provided histopathological evidence for QC being a prerequisite for pE-Abeta pathology in vivo and further underline the therapeutic potential of QC inhibition in Alzheimer Disease. PMID: 21301857
    9. Upon binding to PBD150, a large loop movement in gQC allows the inhibitor to be tightly held in its active site primarily by hydrophobic interactions. PMID: 21288892
    10. This study demonstrated that glutaminyl cyclase expression and pE-Abeta formation in subcortical brain regions( Edinger-Westphal nucleus, locus coeruleus and nucleus basalis Meynert) affected in Alzheimer's disease. PMID: 20383514
    11. Human isoQC proteins displayed a broad substrate specificity and preference for hydrophobic substrates, similar to the related QC. PMID: 19804409
    12. Functional expression of human glutaminyl cyclase in Pichia pastoris reveals the presence of a disulfide bond with an important role in the stabilization of active protein structure. PMID: 12196024
    13. human glutaminyl cyclase is a metal-dependent transferase PMID: 14522962
    14. Glutaminyl cyclase was expressed as a fully active 37 kDa enzyme with kcat/Km values of 14.3, 9.3, and 2.4 mM(-1)s(-1) for the substrates Gln-Gln, Gln-NH(2), and Gln-t-butyl ester, respectively PMID: 14680951
    15. Genetic variations in QPCT are important factors affecting the bone mineral density of adult women that contribute to susceptibility for osteoporosis. PMID: 15231017
    16. structure of human QC in free form and bound to a substrate and three imidazole-derived inhibitors PMID: 16135565
    17. Our results suggest that QPCT may be the QTL gene at chromosome 2p for spine BMD variation in the Chinese population PMID: 17687619
    18. combined steady-state enzyme kinetic and X-ray structural analyses of 11 single-mutation human QCs to investigate the roles of the H-bond network in catalysis PMID: 18072935
    19. The computations outline the important role of Trp329 in helping the substrate binding process and stabilizing the cyclization transition state. PMID: 18470930
    20. Golgi apparatus retention implies a "housekeeping" protein maturation machinery conducting glycosylation and pyroglutamyl formation. For these isoenzymes, apparently similar strategies evolved to retain the proteins in the Golgi complex. PMID: 18486145

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  • 亚细胞定位：
    Secreted.
  • 蛋白家族：
    Glutaminyl-peptide cyclotransferase family
  • 数据库链接：

    HGNC: 9753

    OMIM: 607065

    KEGG: hsa:25797

    STRING: 9606.ENSP00000344829

    UniGene: Hs.79033