Recombinant Human Glutaminyl-peptide cyclotransferase(QPCT)

Recombinant Human Glutaminyl-peptide cyclotransferase(QPCT)

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>Several Other Sizes Are Also Available. Please Inquire. Default Size: 200ug

Updated Date: Stock Protein updated on 20170405

Research areas: Neuroscience

Target / Protein: QPCT

Biologically active: Not Tested

Expression system: E.coli

Species of origin: Homo sapiens (Human)

Delivery time: 3-7 business days

Uniprot ID: Q16769


Tag info: N-terminal 6xHis-SUMO-tagged

Expression Region: 29-361aa

Protein length: Full Length

MW: 53.9 kDa

Alternative Name(s): Glutaminyl cyclase ;QC ;sQCGlutaminyl-tRNA cyclotransferaseGlutamyl cyclase ;EC

Relevance: 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]-beta-amyloid. May be involved in the N-terminal pyroglutamate formation of several amyloid-related plaque-forming peptides.

Reference: Structures of human Golgi-resident glutaminyl cyclase and its complexes with inhibitors reveal a large loop movement upon inhibitor binding.Huang K.F., Liaw S.S., Huang W.L., Chia C.Y., Lo Y.C., Chen Y.L., Wang A.H.J. Biol. Chem. 286:12439-12449(2011)

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

Storage: 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℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃.

Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.

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