Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-17 23:56:52 UTC
Update Date2022-08-31 17:40:24 UTC
Metabolite IDMMDBc0030173
Metabolite Identification
Common NameGalactosyl-glucosyl-heptosyl3-KDO2-lipid A-bisphosphate
DescriptionGalactosyl-glucosyl-heptosyl3-kdo2-lipid A-bisphosphate is a component of LPS. Bacterial lipopolysaccharides (LPS) typically consist of a hydrophobic domain inserted into the outer membrane known as lipid A (or endotoxin), a phosphorylated "core" oligosaccharide and a distal polysaccharide (or O antigen). The core oligosaccharides are conceptually divided into two regions: inner core and outer core. The inner core is highly conserved, comprises three deoxy-D-manno-octulosonic acid (KDO) and L-glycero-D-manno-heptose (Hep) and is often phosphorylated. The inner core oligosaccharide plays a critical role in essential barrier function of the outer membrane. The outer core comprises a tri-hexose backbone modified with varying side-branch substitutions of hexose and acetamidohexose residues. The outer core provides an attachment site for O-antigen. The completed lipid A-KDO2 serves as the acceptor on which the core oligosaccharide chains are assembled by sequential glycosyl transfer from nucleotide sugar precursors. This process involves a co-ordinated complex of membrane-associated glycosyltransferases acting at the cytoplasmic face of the plasma membrane.
Structure
Synonyms
ValueSource
Galactosyl-glucosyl-heptosyl3-kdo2-lipid a-bisphosphoric acidGenerator
Molecular FormulaC143H264N2O73P4
Average Mass3303.4909
Monoisotopic Mass3301.595769912
IUPAC Name{[(3R,4R,5S)-6-{[(2R,3R,4R,6R)-6-carboxy-4-{[6-(1,2-dihydroxyethyl)-2-(dihydroxymethyl)-4,5-dihydroxyoxan-2-yl]oxy}-2-[(1R)-1,2-dihydroxyethyl]-6-{[(2R,3S,4R,5R,6R)-6-{[(2R,3S,4R,5R,6R)-5-{[(3R)-1,3-dihydroxytetradecylidene]amino}-3-hydroxy-4-{[(3R)-3-hydroxytetradecanoyl]oxy}-6-(phosphonooxy)oxan-2-yl]methoxy}-5-{[(3R)-3-(dodecanoyloxy)-1-hydroxytetradecylidene]amino}-3-(phosphonooxy)-4-{[(3R)-3-(tetradecanoyloxy)tetradecanoyl]oxy}oxan-2-yl]methoxy}oxan-3-yl]oxy}-4-{[(3S,4R,5R)-6-[(1S)-2-{[6-(1,2-dihydroxyethyl)-3,4,5-trihydroxyoxan-2-yl]oxy}-1-hydroxyethyl]-3-hydroxy-4-{[3,4,5-trihydroxy-6-({[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)oxan-2-yl]oxy}-5-[(trihydroxyphosphaniumyl)oxy]oxan-2-yl]oxy}-2-[(1S)-1,2-dihydroxyethyl]-5-hydroxyoxan-3-yl]oxy}trihydroxyphosphanium
Traditional Name{[(3R,4R,5S)-6-{[(2R,3R,4R,6R)-6-carboxy-4-{[6-(1,2-dihydroxyethyl)-2-(dihydroxymethyl)-4,5-dihydroxyoxan-2-yl]oxy}-2-[(1R)-1,2-dihydroxyethyl]-6-{[(2R,3S,4R,5R,6R)-6-{[(2R,3S,4R,5R,6R)-5-{[(3R)-1,3-dihydroxytetradecylidene]amino}-3-hydroxy-4-{[(3R)-3-hydroxytetradecanoyl]oxy}-6-(phosphonooxy)oxan-2-yl]methoxy}-5-{[(3R)-3-(dodecanoyloxy)-1-hydroxytetradecylidene]amino}-3-(phosphonooxy)-4-{[(3R)-3-(tetradecanoyloxy)tetradecanoyl]oxy}oxan-2-yl]methoxy}oxan-3-yl]oxy}-4-{[(3S,4R,5R)-6-[(1S)-2-{[6-(1,2-dihydroxyethyl)-3,4,5-trihydroxyoxan-2-yl]oxy}-1-hydroxyethyl]-3-hydroxy-4-{[3,4,5-trihydroxy-6-({[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)oxan-2-yl]oxy}-5-[(trihydroxyphosphaniumyl)oxy]oxan-2-yl]oxy}-2-[(1S)-1,2-dihydroxyethyl]-5-hydroxyoxan-3-yl]oxy}trihydroxyphosphanium
CAS Registry NumberNot Available
SMILES
[H][C@@](O)(CCCCCCCCCCC)CC(=O)O[C@@]1([H])[C@]([H])(O)[C@@]([H])(CO[C@]2([H])O[C@]([H])(CO[C@@]3(C[C@@]([H])(OC4(CC([H])(O)C([H])(O)C([H])(O4)C([H])(O)CO)C(O)O)[C@@]([H])(OC4([H])OC([H])([C@@]([H])(O)CO)[C@@]([H])(O[P+](O)(O)O)[C@]([H])(OC5([H])OC([H])([C@@]([H])(O)COC6([H])OC([H])(C([H])(O)CO)C([H])(O)C([H])(O)C6([H])O)[C@@]([H])(O[P+](O)(O)O)[C@]([H])(OC6([H])OC([H])(COC7([H])OC([H])(CO)C([H])(O)C([H])(O)C7([H])O)C([H])(O)C([H])(O)C6([H])O)[C@]5([H])O)[C@]4([H])O)[C@]([H])(O3)[C@]([H])(O)CO)C(O)=O)[C@@]([H])(OP(O)(O)=O)[C@]([H])(OC(=O)C[C@@]([H])(CCCCCCCCCCC)OC(=O)CCCCCCCCCCCCC)[C@@]2([H])N=C(O)C[C@@]([H])(CCCCCCCCCCC)OC(=O)CCCCCCCCCCC)O[C@]([H])(OP(O)(O)=O)[C@]1([H])N=C(O)C[C@]([H])(O)CCCCCCCCCCC
InChI Identifier
InChI=1S/C143H262N2O73P4/c1-7-13-19-25-31-37-38-44-50-56-62-68-102(162)199-87(66-60-54-48-42-35-29-23-17-11-5)72-104(164)205-128-106(145-100(160)71-86(65-59-53-47-41-34-28-22-16-10-4)198-101(161)67-61-55-49-43-36-30-24-18-12-6)133(195-82-97-110(168)127(204-103(163)70-85(152)64-58-52-46-40-33-27-21-15-9-3)105(134(201-97)218-222(191,192)193)144-99(159)69-84(151)63-57-51-45-39-32-26-20-14-8-2)203-98(126(128)215-219(182,183)184)83-197-142(140(178)179)74-94(212-143(141(180)181)73-88(153)107(165)121(213-143)90(155)76-147)125(124(214-142)92(157)78-149)209-138-118(176)129(131(216-220(185,186)187)122(207-138)91(156)77-148)211-139-119(177)130(210-137-117(175)112(170)109(167)96(202-137)81-196-135-115(173)111(169)108(166)95(79-150)200-135)132(217-221(188,189)190)123(208-139)93(158)80-194-136-116(174)113(171)114(172)120(206-136)89(154)75-146/h84-98,105-139,141,146-158,165-177,180-181,185-190H,7-83H2,1-6H3,(H5-2,144,145,159,160,178,179,182,183,184,191,192,193)/p+2/t84-,85-,86-,87-,88?,89?,90?,91+,92-,93+,94-,95?,96?,97-,98-,105-,106-,107?,108?,109?,110-,111?,112?,113?,114?,115?,116?,117?,118+,119+,120?,121?,122?,123?,124-,125-,126-,127-,128-,129-,130-,131-,132-,133-,134-,135?,136?,137?,138?,139?,142-,143?/m1/s1
InChI KeyRGQOXTQVAZRKRV-OZMVRWPHSA-P