In <i>Streptomyces lividans</i>, acetyl‐CoA synthetase activity is controlled by <i>O‐</i>serine and <i>N<sup>ɛ</sup>‐</i>lysine acetylation is a research paper published in Molecular Microbiology (2018). On theSindex it has a DataRank of 0.820. It has been cited 22 times, with 16 citing works in its 1-hop citation network.
SummaryProtein acetylation is a rapid mechanism for control of protein function. Acetyl‐CoA synthetase (AMP‐forming, Acs) is the paradigm for the control of metabolic enzymes by lysine acetylation. In many bacteria, type I or II protein acetyltransferases acetylate Acs, however, in actinomycetes type III protein acetyltransferases control the activity of Acs. We measured changes in the activity of the Streptomyces lividans Acs (SlAcs) enzyme upon acetylation by PatB using in vitro and in vivo analyses. In addition to the acetylation of residue K610, residue S608 within the acetylation motif of SlAcs was also acetylated (PKTRSGK610). S608 acetylation rendered SlAcs inactive and non‐acetylatable by PatB. It is unclear whether acetylation of S608 is enzymatic, but it was clear that this modification occurred in vivo in Streptomyces. In S. lividans, an NAD+‐dependent sirtuin deacetylase from Streptomyces, SrtA (a homologue of the human SIRT4 protein) was needed to maintain SlAcs function in vivo. We have characterized a sirtuin‐dependent reversible lysine acetylation system in Streptomyces lividans that targets and controls the Acs enzyme of this bacterium. These studies raise questions about acetyltransferase specificity, and describe the first Acs enzyme in any organism whose activity is modulated by O‐Ser and Nɛ‐Lys acetylation.
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Base Score Contribution
0.470
From this paper's citation signal
Citation Network Contribution
0.350
From 14 citing papers with measurable signal
Ranked by citation count — the same ordering the engine uses when summing log1p(Cq) over citers.
DataRank blends this paper's own citation count with the influence of the papers that cite it. Here, roughly 57% comes from its base citations and 43% from the citation network (14 citing papers contributed measurable signal).
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