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Human QPCT Gene cDNA Clone (full-length ORF Clone), expression ready, N-HA-tagged

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QPCTcDNA Clone Product Information
Gene_bank_ref_id:BC047756
cDNA Size:1086
cDNA Description:ORF Clone of Homo sapiens glutaminyl-peptide cyclotransferase DNA.
Gene Synonym:GCT, QC, sQC, QPCT
Species:Human
Vector:pCMV3-N-HA
Restriction Site:
Tag Sequence:HA Tag Sequence: TATCCTTACGACGTGCCTGACTACGCC
Sequence Description:
Shipping_carrier:Each tube contains approximately 10 μg of lyophilized plasmid.
Storage:The lyophilized plasmid can be stored at ambient temperature for three months.
pCMV3-SP-N-HA (suitable for secretary and membane protein expession) Vector Information
 
Vector Name pCMV3-SP-N-HA
Vector Size 6146bp
Vector Type Mammalian Expression Vector
Expression Method Constiutive, Stable / Transient
Promoter CMV
Antibiotic Resistance Kanamycin
Selection In Mammalian Cells Hygromycin
Protein Tag HA
Sequencing Primer Forward:T7(TAATACGACTCACTATAGGG)
Reverse:BGH(TAGAAGGCACAGTCGAGG)

pCMV3-SP-N-HA (suitable for secretary and membane protein expession) Physical Map
Schematic of pCMV3-SP-N-HA (suitable for secretary and membane protein expession) Multiple Cloning Sites

HA Tag Info

Human influenza hemagglutinin (HA) is a surface glycoprotein required for the infectivity of the human virus. The HA tag is derived from the HA-molecule corresponding to amino acids 98-106 has been extensively used as a general epitope tag in expression vectors. Many recombinant proteins have been engineered to express the HA tag, which does not appear to interfere with the bioactivity or the biodistribution of the recombinant protein. This tag facilitates the detection, isolation, and purification of the proteins.

The actual HA tag is as follows: 5' TAC CCA TAC GAT GTT CCA GAT TAC GCT 3' or 5' TAT CCA TAT GAT GTT CCA GAT TAT GCT 3' The amino acid sequence is: YPYDVPDYA.

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Background

Glutaminyl cyclase, also known as QPCT, can promote the N-terminal cyclization reaction of N-terminal pyroglutamate(pGlu). The pGlu formation from its glutaminyl precursor is required in the maturation of numerous bioactive peptides, while the aberrant formation of pGlu may be related to several pathological processes, such as osteoporosis and amyloidotic diseases. Glutaminyl cyclase's structure reveals an alpha/beta scaffold akin to that of two-zinc exopeptidases but with several insertions and deletions, particularly in the active-site region. Glutaminyl cyclase's amino acid sequence of this enzyme is 86% identical to that of bovine glutaminyl cyclase. It is responsible for the presence of pyroglutamyl residues in many neuroendocrine peptides.

References
  • Busby WH, et al. (1987) An enzyme(s) that converts glutaminyl-peptides into pyroglutamyl-peptides. Presence in pituitary, brain, adrenal medulla, and lymphocytes. J Biol Chem. 262(18):8532-6.
  • Bateman RC, et al. (2001) Evidence for essential histidines in human pituitary glutaminyl cyclase. Biochemistry. 40(37):11246-50.
  • Schilling S, et al. (2002) Heterologous expression and characterization of human glutaminyl cyclase: evidence for a disulfide bond with importance for catalytic activity. Biochemistry. 41 (35):10849-57.
  • Size / Price
    Catalog:HG13752-NY
    List Price: $295.00  (Save $0.00)
    Price:$295.00      [How to order]
    Availability2-3 weeks
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