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Guanosine diphosphate mannose


Guanosine diphosphate mannose or GDP-mannose is a nucleotide sugar that is a substrate for glycosyltransferase reactions in metabolism. This compound is a substrate for enzymes called mannosyltransferases.

Known as donor of activated mannose in all glycolytic reactions, GDP-mannose is essential in eukaryotes.

Biosynthesis

GDP-mannose is produced from GTP and mannose 1-phosphate by the enzyme mannose-1-phosphate guanylyltransferase (GDP-mannose pyrophosphorylase, GDP-MP). This enzyme belongs to a family of nucleotidyl-transferases and is a pervasive enzyme found in bacteria, fungi, plants, and animals.

References

References

  1. (July 2005). "Characterisation of a Leishmania mexicana knockout lacking guanosine diphosphate-mannose pyrophosphorylase". International Journal for Parasitology.
  2. (2003). "Biosynthesis of O-antigens: genes and pathways involved in nucleotide sugar precursor synthesis and O-antigen assembly". Carbohydrate Research.
  3. (2019-05-31). "GDP-Mannose Pyrophosphorylase: A Biologically Validated Target for Drug Development Against Leishmaniasis". Frontiers in Cellular and Infection Microbiology.
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