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'''Thiamin''' or '''thiamine''', also known as '''[[vitamin]] B<sub>1</sub>''' and '''aneurine hydrochloride''', is the term for a family of molecules sharing a common structural feature responsible for its activity as a vitamin. It is one of the [[B vitamins]]. Its most common form is a colorless chemical [[chemical compound|compound]] with a [[chemical formula]] [[Carbon|C]]<sub>12</sub>[[Hydrogen|H]]<sub>17</sub>[[Nitrogen|N]]<sub>4</sub>[[Oxygen|O]][[Sulfur|S]]. This form of thiamin is [[soluble]] in [[water]], [[methanol]], and [[glycerol]] and practically insoluble in [[acetone]], [[ether]], [[chloroform]], and [[benzene]]. Another form of thiamin known as TTFD has different solubility properties and belongs to a family of molecules often referred to as fat-soluble thiamins. Thiamin decomposes if heated. Its chemical structure contains a [[pyrimidine]] ring and a [[thiazole]] ring.
== History ==
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===Diagnostic testing ===
A positive diagnosis test for thiamin deficiency can be ascertained by measuring the activity of the enzyme [[transketolase]] in [[erythrocyte]]s.
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There are four known natural thiamin phosphate derivatives: [[thiamin monophosphate]] (ThMP), [[thiamin diphosphate]] (ThDP) or [[thiamin pyrophosphate]] (TPP), [[thiamin triphosphate]] (ThTP), and the recently discovered [[adenosine thiamin triphosphate]] (AThTP).
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* In [[mammals]]:
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TPP is synthesized by the enzyme [[thiamin pyrophosphokinase]], which requires free thiamin, [[magnesium]], and [[adenosine triphosphate]].
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====Adenosine thiamin triphosphate====
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{{Vitamin}}
[[Category:Amines|
[[Category:Pyrimidines|
[[Category:Thiazoles|
[[Category:Vitamins]]
[[Category:Coenzymes]]
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