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Human DPPII / QPP / DPP7 Protein  pdf  pdf  pdf


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Synonym

DPPII,QPP,DPP7,DPP2,Dipeptidyl peptidase 2,Dipeptidyl aminopeptidase II

Source

Human DPPII / QPP / DPP7 Protein (Human DPPII, His Tag) Gly 22 - Leu 492 (Accession # AAH11907) was produced in human 293 cells (HEK293) at ACROBiosystems.

Molecular Characterization

Human DPPII, His Tag is fused with a polyhistidine tag at the C-terminus, and has a calculated MW of 53 kDa. The predicted N-terminus is Gly 22. The reducing (R) protein migrates as 60-66 kDa in SDS-PAGE due to glycosylation.

Endotoxin

Less than 1.0 EU per μg by the LAL method.

Purity

>95% as determined by SDS-PAGE.

Formulation

Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 150 mM NaCl, pH 7.5. Normally Mannitol or Trehalose are added as protectants before lyophilization.

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Reconstitution

See Certificate of Analysis for reconstitution instructions and specific concentrations.

Storage

Avoid repeated freeze-thaw cycles.

No activity loss was observed after storage at:
In lyophilized state for 1 year (4°C); After reconstitution under sterile conditions for 3 months (-70°C).

 

SDS-PAGE


Human DPPII / QPP / DPP7 Protein
Human DPPII, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
 
 

Background

Dipeptidyl peptidase 2 (DPP2 or DPP II) is also known as Dipeptidyl peptidase 7 (DPP7), Quiescent cell proline dipeptidase (QPP), which belongs to the peptidase S28 family. DPP7 / DPP2 is detected in seminal plasma (at protein level). When the pH is 5.5, Dipeptidyl peptidase 2 display a optimum catalytic activity. DPP7 has low activity at pH 7 and is inactive at pH 8. DPP7 plays an important role in the degradation of some oligopeptides.

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References

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