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In enzymology, a thiamine diphosphokinase (EC 2.7.6.2) is an enzyme that catalyzes the chemical reaction ATP + thiamine ⇌ {\displaystyle \rightleftharpoons } AMP + thiamine diphosphate Thus, the two substrates of this enzyme are ATP and thiamine , whereas its two products are AMP and thiamine diphosphate .
Thiamine pyrophosphate (TPP or ThPP), or thiamine diphosphate (ThDP), or cocarboxylase [1] is a thiamine (vitamin B 1) derivative which is produced by the enzyme thiamine diphosphokinase. Thiamine pyrophosphate is a cofactor that is present in all living systems, in which it catalyzes several biochemical reactions.
In enzymology, a thiamine-diphosphate kinase is an enzyme involved in thiamine metabolism. It catalyzes the chemical reaction. thiamine diphosphate + ATP thiamine triphosphate + ADP. Thus, the two substrates of this enzyme are ATP and thiamine diphosphate, whereas its two products are ADP and thiamine triphosphate.
Thiamine is one of the B vitamins and is also known as vitamin B 1. [1] [11] [12] It is a cation that is usually supplied as a chloride salt. [3]It is soluble in water, methanol and glycerol, but practically insoluble in less polar organic solvents.
In enzymology, a thiamine-phosphate kinase (EC 2.7.4.16) is an enzyme that catalyzes the chemical reaction ATP + thiamine phosphate ⇌ {\displaystyle \rightleftharpoons } ADP + thiamine diphosphate Thus, the two substrates of this enzyme are ATP and thiamine phosphate , whereas its two products are ADP and thiamine diphosphate .
Thiamine deficiency is a medical condition of low levels of thiamine (vitamin B 1). [1] A severe and chronic form is known as beriberi. [1] [7] The name beriberi was possibly borrowed in the 18th century from the Sinhalese phrase බැරි බැරි (bæri bæri, “I cannot, I cannot”), owing to the weakness caused by the condition.
Class II PI 3-kinases are a subgroup of the enzyme family, phosphoinositide 3-kinase that share a common protein domain structure, substrate specificity and method of activation.
In enzymology, a thiamine kinase (EC 2.7.1.89) is an enzyme that catalyzes the chemical reaction ATP + thiamine ⇌ {\displaystyle \rightleftharpoons } ADP + thiamine phosphate Thus, the two substrates of this enzyme are ATP and thiamine , whereas its two products are ADP and thiamine phosphate .