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Information on EC - triphosphoribosyl-dephospho-CoA synthase

for references in articles please use BRENDA:EC2.4.2.52
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EC Tree
     2 Transferases
         2.4 Glycosyltransferases
             2.4.2 Pentosyltransferases
       triphosphoribosyl-dephospho-CoA synthase
IUBMB Comments
ATP cannot be replaced by GTP, CTP, UTP, ADP or AMP. The reaction involves the formation of a new alpha (1''->2') glycosidic bond between the two ribosyl moieties, with concomitant displacement of the adenine moiety of ATP [1,4]. The 2'-(5-triphosphoribosyl)-3'-dephospho-CoA produced can be transferred by EC, citrate lyase holo-[acyl-carrier protein] synthase, to the apo-acyl-carrier protein subunit (gamma-subunit) of EC, citrate (pro-3S) lyase, thus converting it from an apo-enzyme into a holo-enzyme [1,3]. Alternatively, it can be transferred to the apo-ACP subunit of malonate decarboxylase by the action of EC, malonate decarboxylase holo-[acyl-carrier protein] synthase .
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The expected taxonomic range for this enzyme is: Bacteria, Archaea
2'-(5''-triphosphoribosyl)-3-dephospho-CoA synthase, ATP:dephospho-CoA 5-triphosphoribosyl transferase, CitG, MdcB, synthetase, 2'-(5''-triphosphoribosyl)-3'-dephospho-coenzyme A, triphosphoribosyldephospho-CoA synthase, more
ATP + 3'-dephospho-CoA = 2'-(5-triphospho-alpha-D-ribosyl)-3'-dephospho-CoA + adenine
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