- Ganglioside galactosyltransferase
In
enzymology , a ganglioside galactosyltransferase (EC number|2.4.1.62) is anenzyme that catalyzes thechemical reaction :UDP-galactose + N-acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galactosyl-1,4-beta-D-glucosyl-N-acylsphingosine ightleftharpoons UDP + D-galactosyl-1,3-beta-N-acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galactosyl-D-glucosyl-N-acylsphingosine
The 2 substrates of this enzyme are
UDP-galactose andN-acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galactosyl-1,4-beta-D-glucosyl-N-acylsphingosine , whereas its 2 products are UDP andD-galactosyl-1,3-beta-N-acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galactosyl-D-glucosyl-N-acylsphingosine .This enzyme belongs to the family of
glycosyltransferase s, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP-galactose:N-acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galac tosyl-D-glucosyl-N-acylsphingosine beta-1,3-D-galactosyltransferase. Other names in common use include UDP-galactose-ceramide galactosyltransferase, uridine diphosphogalactose-ceramide galactosyltransferase, UDP galactose-LAC Tet-ceramide alpha-galactosyltransferase, UDP-galactose-GM2 galactosyltransferase, uridine diphosphogalactose-GM2 galactosyltransferase, uridine diphosphate D-galactose:glycolipid galactosyltransferase, UDP-galactose:N-acetylgalactosaminyl-(N-acetylneuraminyl), galactosyl-glucosyl-ceramide galactosyltransferase, UDP-galactose-GM2 ganglioside galactosyltransferase, and GM1-synthase. This enzyme participates inglycosphingolipid biosynthesis - ganglioseries andglycan structures - biosynthesis 2 .References
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*External links
::"The
CAS registry number for this enzyme class is CAS registry|37217-28-0."Gene Ontology (GO) codes
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