Uridine diphosphate

Chemical compound From Wikipedia, the free encyclopedia

Uridine diphosphate

Uridine diphosphate, abbreviated UDP, is an organic compound. It is an ester of pyrophosphoric acid with the nucleoside uridine. UDP consists of the pyrophosphate group, the pentose sugar ribose, and the nucleobase uracil.

Quick Facts Names, Identifiers ...
Uridine diphosphate
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Names
IUPAC name
Uridine 5′-(trihydrogen diphosphate)
Systematic IUPAC name
[(2R,3S,4R,5R)-5-(2,4-Dioxo-3,4-dihydropyrimidin-1(2H)-yl)-3,4-dihydroxyoxolan-2-yl]methyl trihydrogen diphosphate
Identifiers
ChEMBL
ChemSpider
ECHA InfoCard 100.000.372
MeSH Uridine+diphosphate
UNII
  • InChI=1S/C9H12N2O6.2H3O4P/c12-3-4-6(14)7(15)8(17-4)11-2-1-5(13)10-9(11)16;2*1-5(2,3)4/h1-2,4,6-8,12,14-15H,3H2,(H,10,13,16);2*(H3,1,2,3,4)/t4-,6-,7-,8-;;/m1../s1 Y
    Key: PMPFLUWUGZHTOK-WFIJOQBCSA-N Y
Properties
C9H14N2O12P2
Molar mass 404.161
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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UDP is an important factor in glycogenesis. Before glucose can be stored as glycogen in the liver and muscles, the enzyme UDP-glucose pyrophosphorylase forms a UDP-glucose unit by combining glucose 1-phosphate with uridine triphosphate, cleaving a pyrophosphate ion in the process. Then, the enzyme glycogen synthase combines UDP-glucose units to form a glycogen chain. The UDP molecule is cleaved from the glucose ring during this process and can be reused by UDP-glucose pyrophosphorylase.[1][2]

See also

References

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