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Q.
Which of the following vitamins serves as a coenzyme in transamination and decarboxylation of amino acid?
AMUAMU 1999
Solution:
: Pyridoxine $ ({{B}_{6}}) $ act as active coenzyme of several enzymes of amino acid metabolism. By entering into a Schiffbase combination, between its aldehyde group and the amino group of an $ \alpha - $ amino acids, pyridoxal phosphate can facilitate changes in the three remaining bonds of the a-amino carbon to allow either transamination, decarboxylation or threonine aldolase activity, respectively.