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Phosphomannose isomerase catalyzes the interconversion of fructose-6-phosphate and mannose-6-phosphate and plays a critical role in maintaining the supply of D-mannose derivatives, which are required for most glycosylation reactions. Mutations in the MPI gene were found in patients with carbohydrate-deficient glycoprotein syndrome, type Ib. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]
Enzymes ENZYME proteins Isomerase MEMSAT3 predicted membrane proteins Predicted intracellular proteins Disease related genes Potential drug targets Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
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GO:0004476 [mannose-6-phosphate isomerase activity] GO:0005829 [cytosol] GO:0005975 [carbohydrate metabolic process] GO:0006488 [dolichol-linked oligosaccharide biosynthetic process] GO:0008270 [zinc ion binding] GO:0009298 [GDP-mannose biosynthetic process] GO:0018279 [protein N-linked glycosylation via asparagine] GO:0043687 [post-translational protein modification] GO:0044267 [cellular protein metabolic process] GO:0061611 [mannose to fructose-6-phosphate metabolic process] GO:0070062 [extracellular exosome]