2.4.2.19: nicotinate-nucleotide diphosphorylase (carboxylating) This is an abbreviated version! For detailed information about nicotinate-nucleotide diphosphorylase (carboxylating), go to the full flat file .
Word Map on EC 2.4.2.19
Reaction
beta-nicotinate D-ribonucleotide +
diphosphate +
CO2 =
pyridine-2,3-dicarboxylate +
5-phospho-alpha-D-ribose 1-diphosphate
Synonyms BNA6, general stress protein 70 , GSP70 , Hp-QAPRTase, hQPRTase, M6_Spy1061, NAD pyrophosphorylase, NadC, nicotinate mononucleotide pyrophosphorylase (carboxylating) (EC 2.4.2.19), nicotinate-nucleotide pyrophosphorylase (carboxylating), nicotinate-nucleotide:pyrophosphate phospho-alpha-D-ribosyltransferase (decarboxylating), pyrophosphorylase, nicotinate mononucleotide (carboxylating), QAPRTase, QPRT, QPRTase, QPRTase , QPT, QPT1, QPT2, quinolate phosphoribosyltransferase, quinolinate phosphoribosyl transferase, quinolinate phosphoribosyltansferase, quinolinate phosphoribosyltransferase, quinolinate phosphoribosyltransferase (decarboxylating), quinolinate phosphoribosyltransferase 1, quinolinate phosphoribosyltransferase 2, quinolinate phosphoribosyltransferase [decarboxylating] , quinolinic acid phosphoribosyl transferase, quinolinic acid phosphoribosyltransferase, quinolinic phosphoribosyltransferase, sp.NadC, spNadC, TM1645, type II quinolic acid phosphoribosyltransferase, type II quinolinic acid phosphoribosyltransferase
ECTree
Systematic Name
Systematic Name on EC 2.4.2.19 - nicotinate-nucleotide diphosphorylase (carboxylating)
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nicotinate-D-ribonucleotide:diphosphate phospho-alpha-D-ribosyltransferase (carboxylating)
The reaction is catalysed in the opposite direction. Since quinolinate is synthesized from L-tryptophan in eukaryotes, but from L-aspartate in some prokaryotes, this is the first NAD+ biosynthesis enzyme shared by both eukaryotes and prokaryotes [3].