Nucleotide specificity of rat liver thiamine pyrophosphokinase

Artsukevich, I.M.

Biokhimiia 44(3): 543-547

1979


ISSN/ISBN: 0320-9725
PMID: 223671
Document Number: 151371
The nucleotide specificity of thiamine pyrophosphokinase from rat liver was studied. The enzyme was found to possess a sufficiently wide substrate specificity. Any of the nucleotides can be a donor of the pyrophosphate groups for TDP biosynthesis at two pH optima of the enzyme in the T-kinase reaction under the Mg2++/NTP optimal ratio. The minimal requirement for the substrate structure allowing to predict the position of the split nucleotide phosphoester bond was postulated.

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