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・ Dipendu Dowary
・ Dipentaspis
・ Dipentodon
・ Dipentodontaceae
・ Dipeptidase
・ Dipeptidase 1
・ Dipeptidase 2
・ Dipeptidase 3
・ Dipeptidase E
・ Dipeptidase M
・ Dipeptide
・ Dipeptide hydrolase
・ Dipeptidyl aminopeptidase III
・ Dipeptidyl carboxypeptidase
・ Dipeptidyl peptidase
Dipeptidyl peptidase-4
・ Dipeptidyl peptidase-4 inhibitor
・ Dipeptidyl-dipeptidase
・ Dipeptidyl-peptidase I
・ Dipeptidyl-peptidase II
・ Dipeptidyl-peptidase III
・ Dipeptidyl-peptidase IV family
・ Dipesh Chakrabarty
・ Dipetalogaster
・ Dipevler, Bolvadin
・ DIPEx Charity
・ Dipha
・ Diphacı, Merzifon
・ Diphallia
・ Diphan


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Dipeptidyl peptidase-4 : ウィキペディア英語版
Dipeptidyl peptidase-4

Dipeptidyl peptidase-4 (DPP4), also known as adenosine deaminase complexing protein 2 or CD26 (cluster of differentiation 26) is a protein that, in humans, is encoded by the ''DPP4'' gene. DPP4 is related to attractin, FAP, DPP8 and DPP9.
== Function ==
The protein encoded by the ''DPP4'' gene is an antigenic enzyme expressed on the surface of most cell types and is associated with immune regulation, signal transduction and apoptosis. It is an intrinsic membrane glycoprotein and a serine exopeptidase that cleaves X-proline dipeptides from the N-terminus of polypeptides.
It is a rather indiscriminate enzyme for which a diverse range of substrates are known. The substrates of CD26/DPPIV are proline(or alanine)-containing peptides and include growth factors, chemokines, neuropeptides, and vasoactive peptides. DPP4 plays a major role in glucose metabolism. It is responsible for the degradation of incretins such as GLP-1. Furthermore, it appears to work as a suppressor in the development of cancer and tumours.
DPP-4 also binds the enzyme adenosine deaminase specifically and with high affinity. The significance of this interaction has yet to be established.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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