ELONGATION OF PEPTIDE CHAINS IN ENZYME-CATALYZED TRANSAMIDATION REACTIONS
نویسندگان
چکیده
منابع مشابه
Specificity of papain-catalyzed transamidation reactions.
In the experiments reported in the present communication, these studies have been extended with special reference to the specificity of the enzyme toward the dipeptide used as replacement agent. It had been suggested (1) that the value of pKz’ of a dipeptide is a determining factor in the efficiency with which it can participate in a transamidation reaction at ‘a given pH. This suggestion has b...
متن کاملTransamidation reactions catalyzed by cathepsin C.
Previous publications from this laboratory (l-3) have described the catalysis of transamidation reactions by the proteinases papain, ficin, and crystalline chymotrypsin. In addition, preliminary experiments were reported on replacement reactions catalyzed by beef spleen cathepsin C, an intracellular endopeptidase of animal tissues, which resembles pancreatic chymotrypsin in its specificity. The...
متن کاملEnzyme-catalyzed phosphoryl transfer reactions.
PERSPECTIVES AND SUMMARY ................... ... ...................................................... 877 Classes of enzyme involving reactions at phosphorus...................................................... 878 COVALENT REACTION INTERMEDIATES, CRYPTIC AND OTHERWISE........................................................................................................ 879 Reactions of Pho...
متن کاملTunneling of intermediates in enzyme-catalyzed reactions.
A fascinating group of enzymes has been shown to possess multiple active sites connected by intramolecular tunnels for the passage of reactive intermediates from the site of production to the site of utilization. In most of the examples studied to date, the binding of substrates at one active site enhances the formation of a reaction intermediate at an adjacent active site. The most common inte...
متن کاملNickel-catalyzed transamidation of aliphatic amide derivatives.
Transamidation, or the conversion of one amide to another, is a long-standing challenge in organic synthesis. Although notable progress has been made in the transamidation of primary amides, the transamidation of secondary amides has remained underdeveloped, especially when considering aliphatic substrates. Herein, we report a two-step approach to achieve the transamidation of secondary aliphat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1951
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)56043-9