Restriction and DNA-modifying enzymes were purchased from Takara Bio and New England Biolabs. Quick
Taq HS DyeMix came from Toyobo. Oligonucleotide primers were synthesized by FASMAC.
Leupeptin,
Gly-Pro-MCA, His-Ala-MCA, Lys-Ala-MCA, Phe-Met-MCA, [(2
S, 3
S)-3-carboxyoxirane-2-carbonyl]-
l-leucine (4-guanidinobutyl) amide hemihydrate,
GLP-1, GIP,
glucagon, oxyntomodulin, and
substance-P were purchased from Peptide Institute. Gly-Phe-MCA and Ser-Tyr-MCA were obtained from Bachem. Other substrates not commercially available, that is, His-Ala-MCA, Gly-Ala-MCA, Tyr-Ala-MCA, Phe-Leu-MCA, HAED-MCA, HAEG-MCA, HAEF-MCA, YAED-MCA, LDKA-MCA, TDKA-MCA, and HAEGTF-MCA, were synthesized by Scrum. CCL3 and CXCL6 were provided by GenScript Japan.
Bovine insulin, tosyl-
l-lysyl-chloromethane hydrochloride,
aprotinin, sitagliptin phosphate monohydrate,
3,4-dichloroisocoumarin,
4-(2-aminoethyl) benzenesulfonyl fluoride hydrochloride, and
α-cyano-4-hydroxycinnamic acid were obtained from Sigma–Aldrich. Isoleucine thiazolidide hemifumarate (P32/98) was from FOCUS Biomolecules.
Ohara-Nemoto Y., Shimoyama Y., Ono T., Sarwar M.T., Nakasato M., Sasaki M, & Nemoto T.K. (2022). Expanded substrate specificity supported by P1′ and P2′ residues enables bacterial dipeptidyl-peptidase 7 to degrade bioactive peptides. The Journal of Biological Chemistry, 298(3), 101585.