Enzymes Acting on d-Amino Acid Containing Peptides
互联网
1210
Using a synthetic oligopeptide (d -Phe)4 , a microorganism Bacillus cereus DF4-B producing alkaline d -peptidase (ADP) was isolated. The enzymatic properties have been characterized; the enzyme showed d -stereospecific dipeptidyl aminopeptidase and endopeptidase activities. The enzyme was active toward (d -Phe) n , Boc-(d -Phe) n , (d -Phe) n methyl ester, d -Phe-NH2 , Boc-(d -Phe) n methyl ester, and Boc-(d -Phe) n tert -butyl ester, but not toward (d -Ala) n (n = 2–4), (d -Val)3 , and (d -Leu)2 .
![(3S)-3-[[(2S,11S)-11-[[(2S,3S)-2-[acetyl(methyl)amino]-3-methylpentanoyl]amino]-12-oxo-1-azatricyclo[6.4.1.04,13]trideca-4,6,8(13)-triene-2-carbonyl]amino]-4-oxo-4-(5-phenyl-1,3,4-oxadiazol-2-yl)butanoic acid，Moligand™，阿拉丁](https://img1.dxycdn.com/p/s14/2024/0619/722/0483842343985733081.jpg!wh200)
