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Thiamine-diphosphate kinase

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Class of enzymes
thiamin diphosphate kinase
Identifiers
EC no.2.7.4.15
CAS no.9075-79-0
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In enzymology, a thiamine-diphosphate kinase is an enzyme involved in thiamine metabolism. It catalyzes the chemical reaction

thiamine diphosphate + ATP {\displaystyle \rightleftharpoons } thiamine triphosphate + ADP

Thus, the two substrates of this enzyme are ATP and thiamine diphosphate, whereas its two products are ADP and thiamine triphosphate.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with a phosphate group as acceptor. The systematic name of this enzyme class is ATP:thiamine-diphosphate phosphotransferase. Other names in common use include ATP:thiamin-diphosphate phosphotransferase, TDP kinase, thiamin diphosphate kinase, thiamin diphosphate phosphotransferase, thiamin pyrophosphate kinase, thiamine diphosphate kinase, and protein bound thiamin diphosphate:ATP phosphoryltransferase.

See also

References

  • Itokawa Y, Cooper JR (1968). "The enzymatic synthesis of triphosphothiamin". Biochim. Biophys. Acta. 158 (1): 180–2. doi:10.1016/0304-4165(68)90093-7. PMID 5661031.
  • Kikuchi M; Ikawa T. "Presence of an enzyme mediating transfer of phosphate from thiamine triphosphate to ADP in germinating maize". Bot. Mag. Tokyo: 193–205.
Transferases: phosphorus-containing groups (EC 2.7)
2.7.1-2.7.4:
phosphotransferase/kinase
(PO4)
2.7.1: OH acceptor
2.7.2: COOH acceptor
2.7.3: N acceptor
2.7.4: PO4 acceptor
2.7.6: diphosphotransferase
(P2O7)
2.7.7: nucleotidyltransferase
(PO4-nucleoside)
Polymerase
DNA polymerase
DNA-directed DNA polymerase
I/A
γ
θ
ν
T7
Taq
II/B
α
δ
ε
ζ
Pfu
III/C
IV/X
β
λ
μ
TDT
V/Y
η
ι
κ
RNA-directed DNA polymerase
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RNA polymerase
Template-directed
RNA polymerase I
II
III
IV
V
ssRNAP
POLRMT
Primase
1
2
PrimPol
RNA-dependent RNA polymerase
Polyadenylation
PAP
PNPase
Phosphorolytic
3' to 5' exoribonuclease
Nucleotidyltransferase
Guanylyltransferase
Other
2.7.8: miscellaneous
Phosphatidyltransferases
Glycosyl-1-phosphotransferase
2.7.10-2.7.13: protein kinase
(PO4; protein acceptor)
2.7.10: protein-tyrosine
2.7.11: protein-serine/threonine
2.7.12: protein-dual-specificity
2.7.13: protein-histidine
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