Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-18 01:49:29 UTC
Update Date2022-08-31 18:24:46 UTC
Metabolite IDMMDBc0031792
Metabolite Identification
Common NameUDP-beta-L-Threo-pentapyranos-4-ulose
DescriptionUDP-beta-L-Threo-pentapyranos-4-ulose is an intermediate in the polymixin resistance pathway. It is a substrate for the enzyme UDP-4-amino-4-deoxy-L-arabinose aminotransferase which catalyzes the reaction UDP-4-amino-4-deoxy-beta-L-arabinopyranose + 2-oxoglutarate = UDP-beta-L-threo-pentapyranos-4-ulose + L-glutamate. Some Gram-negative bacteria, specifically Salmonella typhimurium and Escherichia coli, can become resistant to polymyxin by the modification of their lipid A structure via the attachment of 4-amino-4-deoxy-L-arabinopyranose (L-Ara4N) groups to one or more phosphate groups. This addition causes an absolute increase in lipid A charge, thus lowering the affinity of positively charged polymyxins.
Structure
Synonyms
ValueSource
UDP-b-L-Threo-pentapyranos-4-uloseGenerator
UDP-Β-L-threo-pentapyranos-4-uloseGenerator
{[(2R,3S,4R)-3,4-dihydroxy-5-(4-hydroxy-2-oxo-1,2-dihydropyrimidin-1-yl)oxolan-2-yl]methoxy}[({[(2R,3R,4R)-3,4-dihydroxy-5-oxooxan-2-yl]oxy}(hydroxy)phosphoryl)oxy]phosphinateGenerator
Molecular FormulaC14H20N2O16P2
Average Mass534.2599
Monoisotopic Mass534.028805626
IUPAC Name{[(2R,3S,4R)-3,4-dihydroxy-5-(4-hydroxy-2-oxo-1,2-dihydropyrimidin-1-yl)oxolan-2-yl]methoxy}[({[(2R,3R,4R)-3,4-dihydroxy-5-oxooxan-2-yl]oxy}(hydroxy)phosphoryl)oxy]phosphinic acid
Traditional Name[(2R,3S,4R)-3,4-dihydroxy-5-(4-hydroxy-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy({[(2R,3R,4R)-3,4-dihydroxy-5-oxooxan-2-yl]oxy(hydroxy)phosphoryl}oxy)phosphinic acid
CAS Registry NumberNot Available
SMILES
[H][C@]1(COP(O)(=O)OP(O)(=O)O[C@@]2([H])OCC(=O)[C@]([H])(O)[C@@]2([H])O)OC([H])(N2C=CC(O)=NC2=O)[C@]([H])(O)[C@]1([H])O
InChI Identifier
InChI=1S/C14H20N2O16P2/c17-5-3-28-13(11(22)8(5)19)31-34(26,27)32-33(24,25)29-4-6-9(20)10(21)12(30-6)16-2-1-7(18)15-14(16)23/h1-2,6,8-13,19-22H,3-4H2,(H,24,25)(H,26,27)(H,15,18,23)/t6-,8+,9-,10-,11-,12?,13-/m1/s1
InChI KeyURJZIQLTPCJVMW-SVROINDSSA-N