<prompt> Coenzyme A is formed from which vitamin?CB4Nicotinic acidPentothenic acid  <response>: CoA biosynthesis requires cysteine, pantothenate vitamin B5, and adenosine triphosphate ATP.it is naturally synthesized from pantothenate vitamin B5, which is found in food such as meat, vegetables, cereal grains, legumes, eggs, and milk.Pantothenate vitamin B5 is phosphorylated to 4-phosphopantothenate by the enzyme pantothenate kinase PanK; CoaA; CoaX. This is the committed step in CoA biosynthesis and requires ATP.A cysteine is added to 4-phosphopantothenate by the enzyme phosphopantothenoylcysteine synthetase PPCS; CoaB to form 4-phospho-N-pantothenoylcysteine PPC. This step is coupled with ATP hydrolysis.PPC is decarboxylated to 4-phosphopantetheine by phosphopantothenoylcysteine decarboxylase PPC-DC; CoaC4-phosphopantetheine is adenylylated or more properly, AMPylated to form dephospho-CoA by the enzyme phosphopantetheine adenylyl transferase PPAT; CoaDFinally, dephospho-CoA is phosphorylated to coenzyme A by the enzyme dephosphocoenzyme A kinase DPCK; CoaE. This final step requires ATP. 