Recombinant Human Glutaminyl-peptide cyclotransferase (QPCT)

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中文名稱：

人QPCT重組蛋白
貨號：

CSB-YP019135HU
說明書：

MSDS Datasheet
規格：

￥1500
圖片：
(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
其他：

產品詳情
產品評價
相關產品
靶點詳情

產品詳情

純度：

Greater than 90% as determined by SDS-PAGE.
基因名：

QPCT
Uniprot No.：

Q16769
別名：

Glutaminyl cyclase ;QC ;sQCGlutaminyl-tRNA cyclotransferaseGlutamyl cyclase ;EC
種屬：

Homo sapiens (Human)
蛋白長度：

Full Length of Mature Protein
來源：

Yeast
分子量：

40.4 kDa
表達區域：

29-361aa
氨基酸序列

VSPSASAWPEEKNYHQPAILNSSALRQIAEGTSISEMWQNDLQPLLIERYPGSPGSYAARQHIMQRIQRLQADWVLEIDTFLSQTPYGYRSFSNIISTLNPTAKRHLVLACHYDSKYFSHWNNRVFVGATDSAVPCAMMLELARALDKKLLSLKTVSDSKPDLSLQLIFFDGEEAFLHWSPQDSLYGSRHLAAKMASTPHPPGARGTSQLHGMDLLVLLDLIGAPNPTFPNFFPNSARWFERLQAIEHELHELGLLKDHSLEGRYFQNYSYGGVIQDDHIPFLRRGVPVLHLIPSPFPEVWHTMDDNEENLDESTIDNLNKILQVFVLEYLHL
Note: The complete sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application, please explicitly request the full and complete sequence of this protein before ordering.
蛋白標簽：

N-terminal 10xHis-tagged
產品提供形式：

Liquid or Lyophilized powder Warning: in_array() expects parameter 2 to be array, null given in /www/web/cusabio_cn/public_html/caches/caches_template/default/content/show_product_protein.php on line 662
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.
緩沖液：

If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose.
復溶：

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°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
儲存條件：

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
保質期：

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.
貨期：

3-7 business days
注意事項：

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA：

Please contact us to get it.

產品評價

靶點詳情

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.
基因功能參考文獻：
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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亞細胞定位：

Secreted.
蛋白家族：

Glutaminyl-peptide cyclotransferase family
數據庫鏈接：

HGNC: 9753

OMIM: 607065

KEGG: hsa:25797

STRING: 9606.ENSP00000344829

UniGene: Hs.79033