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GMPPB

Mannose-1-phosphate guanyltransferase beta is an enzyme that in humans is encoded by the GMPPB gene.[1]

This gene is thought to encode a GDP-mannose pyrophosphorylase. This enzyme catalyzes the reaction which converts mannose-1-phosphate and GTP to GDP-mannose which is involved in the production of N-linked oligosaccharides. The gene encodes two transcript variants.[1]

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