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Hexokinasis (Numerus EC: 2.7.1.1) est quodvis enzymum, quod hexosum hexosa (sacchara cum sex atomis carbonii) in hexosi-6-phosphatum transferat[1]. In itineris metabolico glycolysis hexokinasis enzymum primum est.
Hexokinasis | |||||
---|---|---|---|---|---|
Alia nomina | HK1, HK2, HK3, HK4 | ||||
Numerus EC | 2.7.1.1 transferasis | ||||
Substratum | hexosa |
In hominibus isoformae I–IV (cum isoforma IV glucokinasis) notae sunt. Hexokinases in metabolitis fere omnium vitae formarum inveniuntur.
Inopia hexokinasis isoformae 1 (HK1) est morbus genetici ductus autosomaliter-recessivi speciem anaemiae haemolyticae chronicae causans.
Geni isoformarum hexokinasum in diversis chromosomatibus inveniuntur. Nomen geni hexokinasis I, exempli gratia, est HK1, et locus cuius geneticus in chromosomate 10 humano est (10q22.1).
De Warburg effectus metabolismi maximi in cancri descriptus hac reactione hexokinasis molitus est. Variis cancrorum formis hexokinasis "ardens" est. Hac observatione nonnulla experimenta ad cancrum tractandum conata sunt (cancer pulmonis[2]).
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