1 Adenylyl Transfer Reactions

Acetylation of the Chemotaxis Response Regulator CheY by Acetyl-CoA Synthetase Purified from Escherichia coli

“…Although the formation of the intermediate complex between AcAMP and Acs, and its involvement in acetyl transfer is well documented, [22][23][24][25][26] such an intermediate complex cannot exist in SDS and cannot be resolved by SDS-PAGE. Therefore, the observed radiolabeling of Acs probably reflects its autoacetylation.…”

Principles of Protein Structure

“…In general, the observed grouping gives the impres- "The numbers are taken from Ref. (20); the unit PAM is defined in section 9.1, page 168. Each term gives a ratio; the probability that an amino acid pair will occur at a given position in proteins of common ancestry divided by the probability that it will occur by chance.…”

Enzymatic regeneration of ATP. I. Alternative routes

“…Groups donated from ATP include the phosphoryl, pyrophosphoryl, adenylyl, and adenosinyl moieties (Mahler and Cordes, 1971), as shown in Figure 1. Aden1,lyl transfer is particularly common in biosynthesis, for example, in the activation of carboxyl gioups for which a gc*neralized two-step mechanism is (Stadtman, 1973)…”