The condensation product of pantothenic acid and aminoethanethiol; N-pantothenyl-2-aminoethanethiol; an intermediate in biosynthesis of coenzyme A via 4′-phosphopantetheine (a phosphoryl on the terminal –CH2O group) and ATP. SYN: Lactobacillus bulgaricus factor.
- p. kinase an enzyme that catalyzes the phosphorylation of p. by ATP to p. 4′-phosphate; a step in coenzyme A biosynthesis.
- p. 4′-phosphate SYN: 4′-phosphopantetheine.
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pan·te·the·ine .pant-ə-'thē-ən, -.ēn n a growth factor C11H22N2O4S that is essential for various microorganisms (as Lactobacillus bulgaricus) and that is a constituent of coenzyme A
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pan·te·the·ine (pan-tə-theґin) a naturally occurring amide of pantothenic acid and β-mercaptoethanolamine; it is an intermediate in the biosynthesis of coenzyme A, a growth factor for certain bacteria, and a cofactor in certain enzyme complexes (e.g., in fatty acid or polypeptide synthesis).Medical dictionary. 2011.