Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-17 23:56:44 UTC
Update Date2022-08-31 17:40:23 UTC
Metabolite IDMMDBc0030170
Metabolite Identification
Common NameGlucosyl-heptosyl2-KDO2-lipid A-phosphate
DescriptionGlucosyl-heptosyl2-kdo2-lipid A-phosphate 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
Glucosyl-heptosyl2-kdo2-lipid a-phosphoric acidGenerator
Molecular FormulaC130H240N2O59P3
Average Mass2868.1959
Monoisotopic Mass2866.505402924
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}-2-(1,2-dihydroxyethyl)-4-{[(3S,4S,5R)-6-[(1S)-1,2-dihydroxyethyl]-3,5-dihydroxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxan-2-yl]oxy}-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}-2-(1,2-dihydroxyethyl)-4-{[(3S,4S,5R)-6-[(1S)-1,2-dihydroxyethyl]-3,5-dihydroxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxan-2-yl]oxy}-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)CO)[C@@]([H])(O)[C@]([H])(OC6([H])OC([H])(CO)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/C130H239N2O59P3/c1-7-13-19-25-31-37-38-44-50-56-62-68-98(148)175-85(66-60-54-48-42-35-29-23-17-11-5)72-100(150)180-118-102(132-96(146)71-84(65-59-53-47-41-34-28-22-16-10-4)174-97(147)67-61-55-49-43-36-30-24-18-12-6)122(172-80-93-105(153)117(179-99(149)70-83(139)64-58-52-46-40-33-27-21-15-9-3)101(123(177-93)191-194(169,170)171)131-95(145)69-82(138)63-57-51-45-39-32-26-20-14-8-2)178-94(116(118)189-192(163,164)165)81-173-129(127(159)160)74-91(186-130(128(161)162)73-86(140)103(151)112(187-130)88(142)76-134)115(114(188-129)90(144)78-136)183-126-110(158)120(121(190-193(166,167)168)113(182-126)89(143)77-135)185-125-109(157)119(108(156)111(181-125)87(141)75-133)184-124-107(155)106(154)104(152)92(79-137)176-124/h82-94,101-126,128,133-144,151-158,161-162,166-168H,7-81H2,1-6H3,(H6-,131,132,145,146,159,160,163,164,165,169,170,171)/p+1/t82-,83-,84-,85-,86?,87+,88?,89?,90-,91-,92?,93-,94-,101-,102-,103?,104?,105-,106?,107?,108-,109+,110+,111?,112?,113?,114-,115-,116-,117-,118-,119+,120-,121-,122-,123-,124?,125?,126?,129-,130?/m1/s1
InChI KeyDMDZBOUBYURDEM-YEJINIFKSA-O