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Gene Review

acpS  -  holo-[acyl-carrier-protein] synthase 1

Escherichia coli str. K-12 substr. MG1655

Synonyms: ECK2561, JW2547, dpj
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Disease relevance of acpS

  • We demonstrate that AcpT cannot functionally replace AcpS in E. coli K-12 either in its native chromosomal location or upon insertion of acpT into the acpS chromosomal location [1].

High impact information on acpS

  • In addition, it is demonstrated that the gene product, YhhU, of a previously identified E. coli open reading frame can completely suppress the acpS conditional, lethal phenotype upon overexpression of the protein, suggesting that YhhU may be involved in an alternative pathway for phosphopantetheinyl transfer and holoACP synthesis in E. coli [2].
  • N-terminal sequencing of ACPS allowed us to identify dpj, an essential gene of previously unknown function, as the structural gene for ACPS [3].
  • Strain MP4 (acpS) is conditionally defective in [ACP]synthase (EC and apo-ACP was the predominant form of ACP synthesized in this strain under nonpermissive conditions [4].
  • Three PPTases have been previously been identified in Escherichia coli K-12 and other E. coli strains by homology searches and are encoded by the genes acpS, entD and acpT [1].
  • We also show that the previously reported suppression of an acpS mutation by the deletion of Lon protease is an artifact of the increased capsular polysaccharide production of lon strains [1].

Biological context of acpS


Associations of acpS with chemical compounds

  • A model to account for the action of dpj suppressors is presented, and aspects of this genetic analysis are related to the pyridoxal 5'-phosphate biosynthetic pathway [6].

Other interactions of acpS

  • A 1.3 kb pdxJ-acpS RNA is transcribed from a promoter (pdxP) located within recO [7].


  1. A genome rearrangement has orphaned the Escherichia coli K-12 AcpT phosphopantetheinyl transferase from its cognate Escherichia coli O157:H7 substrates. De Lay, N.R., Cronan, J.E. Mol. Microbiol. (2006) [Pubmed]
  2. Holo-(acyl carrier protein) synthase and phosphopantetheinyl transfer in Escherichia coli. Flugel, R.S., Hwangbo, Y., Lambalot, R.H., Cronan, J.E., Walsh, C.T. J. Biol. Chem. (2000) [Pubmed]
  3. Cloning, overproduction, and characterization of the Escherichia coli holo-acyl carrier protein synthase. Lambalot, R.H., Walsh, C.T. J. Biol. Chem. (1995) [Pubmed]
  4. Ratio of active to inactive forms of acyl carrier protein in Escherichia coli. Jackowski, S., Rock, C.O. J. Biol. Chem. (1983) [Pubmed]
  5. The genes degQ, pps, and lpa-8 (sfp) are responsible for conversion of Bacillus subtilis 168 to plipastatin production. Tsuge, K., Ano, T., Hirai, M., Nakamura, Y., Shoda, M. Antimicrob. Agents Chemother. (1999) [Pubmed]
  6. Suppression of insertions in the complex pdxJ operon of Escherichia coli K-12 by lon and other mutations. Lam, H.M., Tancula, E., Dempsey, W.B., Winkler, M.E. J. Bacteriol. (1992) [Pubmed]
  7. Expression and regulation of the rnc and pdxJ operons of Escherichia coli. Matsunaga, J., Dyer, M., Simons, E.L., Simons, R.W. Mol. Microbiol. (1996) [Pubmed]
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