| UTP-RNA uridylyltransferase | <enzyme> Catalyses addition of single ump residue from utp to 3'-end of RNA primer Registry number: EC 2.7.7.- Synonym: terminal uridylyltransferase, ump transferase (26 Jun 1999) |
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| galactose-1-phosphate uridylyltransferase | <enzyme> An enzyme catalyzing the reaction of UTP and alpha-d-galactose 1-phosphate to form UDPgalactose and pyrophosphate, the second and most important step in the metabolism of d-galactose; a deficiency of this enzyme results in an accumulation of galactose, galactose-1-phosphate, and galactitol. (05 Mar 2000) |
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| glucose-1-phosphate uridylyltransferase | <enzyme> An enzyme that activates d-glucose by reacting d-glucose 1-phosphate with UTP, producing pyrophosphate and UDP glucose; a crucial step in glycogen biosynthesis. (05 Mar 2000) |
| hexose-1-phosphate uridylyltransferase | <enzyme> An enzyme that catalyses the transfer of ump from udpglucose to galactose 1-phosphate, forming udpgalactose and glucose 1-phosphate. Deficiency in this enzyme is the major cause of galactosaemia. Chemical name: UDPglucose:alpha-D-galactose-1-phosphate uridylyltransferase Registry number: EC 2.7.7.12 (12 Dec 1998) |
| udpglucose-hexose-1-phosphate uridylyltransferase | <enzyme> An enzyme that catalyses the transfer of ump from udpglucose to galactose 1-phosphate, forming udpgalactose and glucose 1-phosphate. Deficiency in this enzyme is the major cause of galactosaemia. Chemical name: UDPglucose:alpha-D-galactose-1-phosphate uridylyltransferase Registry number: EC 2.7.7.12 (12 Dec 1998) |
| uridylyl removing-uridylyltransferase | <enzyme> Modifies a regulatory protein, pii, which modulates an adenyltransferase which regulates E coli glutamine synthetase Registry number: EC 2.7.7.- Synonym: ur-ut (26 Jun 1999) |
| utp-glucose-1-phosphate uridylyltransferase | <enzyme> An enzyme that catalyses the formation of udpglucose from utp plus glucose 1-phosphate. Chemical name: UTP:alpha-D-glucose-1-phosphate uridylyltransferase Registry number: EC 2.7.7.9 (12 Dec 1998) |
| utp-hexose-1-phosphate uridylyltransferase | <enzyme> An enzyme that catalyses the synthesis of udpgalactose from utp and galactose-1-phosphate. It is present in low levels in foetal and infant liver, but increases with age, thereby enabling galactosaemic infants who survive to develop the capacity to metabolise galactose. Chemical name: UTP:alpha-D-hexose-1-phosphate uridylyltransferase Registry number: EC 2.7.7.10 (12 Dec 1998) |