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BRENDA support

Information on EC 6.3.2.5 - phosphopantothenate-cysteine ligase (CTP)

for references in articles please use BRENDA:EC6.3.2.5

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IUBMB Comments

A key enzyme in the production of coenzyme A. The bacterial enzyme requires CTP, in contrast to the eukaryotic enzyme, EC 6.3.2.51, which requires ATP. Cysteine can be replaced by some of its derivatives.

The expected taxonomic range for this enzyme is: Bacteria, Archaea, Eukaryota

Synonyms
coupling enzyme, phosphopantothenoylcysteine synthetase, ppc synthetase, phosphopantothenate-cysteine ligase, more

REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
CTP + (R)-4'-phosphopantothenate + L-cysteine = CMP + diphosphate + N-[(R)-4'-phosphopantothenoyl]-L-cysteine
show the reaction diagram
PATHWAY SOURCE
PATHWAYS
MetaCyc
coenzyme A biosynthesis I (bacteria), coenzyme A biosynthesis III (archaea)
Highest Expressing Human Cell Lines
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