Definition of pyridoxal in English:

pyridoxal

noun

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

    • ‘The central domain is typical of class 1 pyridoxal - 5'-phosphate-dependent enzymes.’
    • ‘The deuteration effects arose from the reversible deprotonation of the Schiff base formed between glutamate and pyridoxal phosphate.’
    • ‘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.’

Origin

1940s: from pyridoxine + -al.

Pronunciation:

pyridoxal

/ˌpɪrɪˈdɒksəl/