The Enzyme Database

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Accepted name: malonate decarboxylase holo-[acyl-carrier protein] synthase
Reaction: 2′-(5-triphosphoribosyl)-3′-dephospho-CoA + malonate decarboxylase apo-[acyl-carrier protein] = malonate decarboxylase holo-[acyl-carrier protein] + diphosphate
For diagram of reaction, click here
Other name(s): holo ACP synthase (ambiguous); 2′-(5′′-triphosphoribosyl)-3′-dephospho-CoA:apo ACP 2′-(5′′-triphosphoribosyl)-3′-dephospho-CoA transferase; MdcG; 2′-(5′′-triphosphoribosyl)-3′-dephospho-CoA:apo-malonate-decarboxylase adenylyltransferase; holo-malonate-decarboxylase synthase (incorrect)
Systematic name: 2′-(5-triphosphoribosyl)-3′-dephospho-CoA:apo-malonate-decarboxylase 2′-(5-phosphoribosyl)-3′-dephospho-CoA-transferase
Comments: The δ subunit of malonate decarboxylase serves as an an acyl-carrier protein (ACP) and contains the prosthetic group 2-(5-triphosphoribosyl)-3-dephospho-CoA. Two reactions are involved in the production of the holo-ACP form of this enzyme. The first reaction is catalysed by EC, triphosphoribosyl-dephospho-CoA synthase. The resulting prosthetic group is then attached to the ACP subunit via a phosphodiester linkage to a serine residue, thus forming the holo form of the enzyme, in a manner analogous to that of EC, citrate lyase holo-[acyl-carrier protein] synthase.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Hoenke, S., Wild, M.R. and Dimroth, P. Biosynthesis of triphosphoribosyl-dephospho-coenzyme A, the precursor of the prosthetic group of malonate decarboxylase. Biochemistry 39 (2000) 13223–13232. [DOI] [PMID: 11052675]
2.  Hoenke, S., Schmid, M. and Dimroth, P. Identification of the active site of phosphoribosyl-dephospho-coenzyme A transferase and relationship of the enzyme to an ancient class of nucleotidyltransferases. Biochemistry 39 (2000) 13233–13240. [DOI] [PMID: 11052676]
[EC created 2008]

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