ST6GALNAC5,6 transfer Neu5Ac to GM1b
GM1b + CMP-Neu5Ac → GD1alpha + CMP + H+
- Reactome
- R-HSA-9846305
- Compartment
- Golgi lumen · Golgi membrane
- Rhea
- RHEA:41968
Inputs
- GM1bCHEBI:78568, C56H95N3O31R, Golgi membrane
- CMP-Neu5AcCHEBI:57812, C20H29N4O16P, Golgi lumen
Outputs
- GD1alphaCHEBI:78569, C67H111N4O39R, Golgi membrane
- CMPCHEBI:60377, C9H12N3O8P, Golgi lumen
- H+CHEBI:15378, H, Golgi lumen
Catalysed by
- alpha-N-acetylgalactosaminide alpha-2,6-sialyltransferase activity of ST6GALNAC5,6 [Golgi membrane]EC 2.4.3.3
Literature
- Synthesis of disialyl Lewis a (Le(a)) structure in colon cancer cell lines by a sialyltransferase, ST6GalNAc VI, responsible for the synthesis of alpha-series gangliosides J. Biol. Chem., 2003
- A novel glycosyltransferase with a polyglutamine repeat; a new candidate for GD1alpha synthase (ST6GalNAc V)(1) FEBS Lett, 1999