Galactonolactone
IUPAC 名称
(3R,4S,5S,6R)-3,4,5,6-tetrahydroxyoxepan-2-one
描述
Galactonolactone has been determined in human urine by reversed-phase HPLC for the specific evaluation of metabolic by-products in the urine of galactosemic patients and based on the simultaneous determination of gluconolactone, galactonolactone and galactitol. (PMID: 1797843)
Patients with galactose-1-phosphate uridyltransferase (GALT) deficiency, given a load of galactose have been shown to excrete six times as much galactonate in their urine as normal subjects exposed to the same experimental conditions. The production of galactonate occurs through the activity of a soluble NAD+-dependent galactose dehydrogenase, catalyzing the conversion of galactose to D-galactonolactone (D-galactose: NAD+ oxidoreductase, EC 1.1.1.48). (OMMBID) [HMDB]
异构
O[C@@H]1COC(=O)[C@H](O)[C@@H](O)[C@H]1O
InChI标识符
InChI=1S/C6H10O6/c7-2-1-12-6(11)5(10)4(9)3(2)8/h2-5,7-10H,1H2/t2-,3+,4+,5-/m1/s1
键
WTXGYGWMPUGBAL-MGCNEYSASA-N