单词	pyridoxal
释义	pyridoxal /ˌpɪrɪˈdɒksəl / noun [mass noun] Biochemistry An oxidized derivative of pyridoxine which acts as a coenzyme in transamination and other processes.This conversion is catalyzed by the ATP requiring enzyme, pyridoxal kinase.... B6 vitamers are first oxidized to pyridoxal, and rapidly phosphorylated to P5P in the liver. The central domain is typical of class 1 pyridoxal - 5'-phosphate-dependent enzymes. Origin 1940s: from pyridoxine + -al.
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