Definition of pyridoxal in English:

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Pronunciation: /ˌpɪrɪˈdɒksəl/


[mass noun] Biochemistry
An oxidized derivative of pyridoxine which acts as a coenzyme in transamination and other processes.
Example sentences
  • 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.


1940s: from pyridoxine + -al.

For editors and proofreaders

Line breaks: pyri|dox¦al

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