Table 1.

DPP4 intact substrates, and their amino acid sequences

Substrate	Amino acid sequence	Ref.
GLP-1(7–36)	HA ↑ EGTFTSDVSSYLEGQAAKEFIAWLVKGR	Orskov, Bersani, Johnsen, Hojrup, and Holst (1989))
GIP(1–42)	YA ↑ EGTFISDYSIAMDKIHQQDFVNWLLAQKGKKNDWKHNITQ	(Sparre-Ulrich et al. (2017))
PYY(1–36)	YP ↑ IKPEAPGEDASPEELNRYYASLRHYLNLVTRQRY	Grandt et al. (1994))
NPY(1–36)	YP ↑ SKPDNPGEDAPAEDMARYYSALRHYINLITRQRY	Tatemoto (1982)
CXCL12α(1–67)	KP ↑ VSLSYRCPCRFFESHVARANVKHLKILNTPNCALQIVARLKNNNRQVCIDPKLKWIQEYLEKALNK	Dong et al. (2012)

↑ DPP4 proteolytic site