1.0 2011-09-21 00:38:12 UTC 2015-07-21 06:57:58 UTC FDB023994 Sialyllacto-N-tetraose b Sialyllacto-N-tetraose b is a sialylated oligosaccharide normally occurring in human breast milk. Sialylated oligosaccharides are important components of glycoproteins and glycolipids and also occur as free oligosaccharides in several body fluids. In human milk, both free and bound sialylated oligosaccharides have potential biological activity and are known to inhibit viral infection. The acidic oligosaccharides of human milk are predominantly sialyloligosaccharides. Pathogens that bind sialic acid-containing glycans on their host mucosal surfaces may be inhibited by human milk sialyloligosaccharides. Sialyl oligosaccharides of human milk/colostrum are generally believed to be of biological significance, for example providing precursors for biosynthesis of brain. The levels of sialyllacto-N-tetraose are higher on day 3 than on day 1. These results are consistent with the view that during the first 3 d of lactation, the concentration of sialyl oligosaccharides in human colostrum change in accordance with the physiological demands of newborn infants. (PMID:9426699, 2318868, 10683228, 1778981, 17761135, 17587674) [HMDB] LS-tetrasaccharide b LSTb O-(N-acetyl-alpha-neuraminosyl)-(2->6)-O-[beta-D-galactopyranosyl-(1->3)]-O-2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl-(1->3)-O-beta-D-galactopyranosyl-(1->4)- D-Glucose O-(N-acetyl-alpha-neuraminosyl)-(2->6)-O-[beta-delta-galactopyranosyl-(1->3)]-O-2-(acetylamino)-2-deoxy-beta-delta-glucopyranosyl-(1->3)-O-beta-delta-galactopyranosyl-(1->4)- D-Glucose Sialyllacto-N-tetraose b C37H62N2O29 998.8842 998.343824032 (2R,4S,5R,6R)-2-{[(2R,3S,4R,5R,6S)-6-{[(2R,3S,4S,5R,6S)-3,5-dihydroxy-2-(hydroxymethyl)-6-{[(2R,3R,4R,5R)-1,2,4,5-tetrahydroxy-6-oxohexan-3-yl]oxy}oxan-4-yl]oxy}-5-acetamido-3-hydroxy-4-{[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxan-2-yl]methoxy}-5-acetamido-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid (2R,4S,5R,6R)-2-{[(2R,3S,4R,5R,6S)-6-{[(2R,3S,4S,5R,6S)-3,5-dihydroxy-2-(hydroxymethyl)-6-{[(2R,3R,4R,5R)-1,2,4,5-tetrahydroxy-6-oxohexan-3-yl]oxy}oxan-4-yl]oxy}-5-acetamido-3-hydroxy-4-{[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxan-2-yl]methoxy}-5-acetamido-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid 64003-54-9 CC(=O)N[C@@H]1[C@@H](O)C[C@@](OC[C@H]2O[C@@H](O[C@H]3[C@@H](O)[C@@H](CO)O[C@@H](O[C@H]([C@H](O)CO)[C@H](O)[C@@H](O)C=O)[C@@H]3O)[C@H](NC(C)=O)[C@@H](O[C@@H]3O[C@H](CO)[C@H](O)[C@H](O)[C@H]3O)[C@@H]2O)(O[C@H]1[C@H](O)[C@H](O)CO)C(O)=O InChI=1S/C37H62N2O29/c1-10(45)38-19-12(47)3-37(36(59)60,68-31(19)22(52)14(49)5-41)61-9-18-25(55)30(66-34-27(57)26(56)23(53)16(7-43)62-34)20(39-11(2)46)33(64-18)67-32-24(54)17(8-44)63-35(28(32)58)65-29(15(50)6-42)21(51)13(48)4-40/h4,12-35,41-44,47-58H,3,5-9H2,1-2H3,(H,38,45)(H,39,46)(H,59,60)/t12-,13-,14+,15+,16+,17+,18+,19+,20+,21+,22+,23-,24-,25+,26-,27+,28+,29+,30+,31+,32-,33-,34-,35-,37+/m0/s1 SFMRPVLZMVJKGZ-JRZQLMJNSA-N belongs to the class of organic compounds known as n-acylneuraminic acids. These are neuraminic acids carrying an N-acyl substituent. N-acylneuraminic acids Organic compounds Organic oxygen compounds Organooxygen compounds Carbohydrates and carbohydrate conjugates Aliphatic heteromonocyclic compounds Acetamides Alkyl glycosides Alpha-hydroxyaldehydes Beta-hydroxy aldehydes C-glucuronides C-glycosyl compounds Carboxylic acids Hydrocarbon derivatives Ketals Monocarboxylic acids and derivatives N-acyl-alpha-hexosamines Neuraminic acids O-glycosyl compounds Oligosaccharides Organic oxides Organonitrogen compounds Organopnictogen compounds Oxacyclic compounds Oxanes Polyols Primary alcohols Pyrans Secondary alcohols Secondary carboxylic acid amides Acetal Acetamide Alcohol Aldehyde Aliphatic heteromonocyclic compound Alkyl glycoside Alpha-hydroxyaldehyde Beta-hydroxy aldehyde C-glucuronide C-glycosyl compound Carbonyl group Carboxamide group Carboxylic acid Carboxylic acid derivative Fatty acyl Fatty acyl glycoside Glycosyl compound Hydrocarbon derivative Ketal Monocarboxylic acid or derivatives N-acyl-alpha-hexosamine N-acylneuraminic acid Neuraminic acid O-glycosyl compound Oligosaccharide Organic nitrogen compound Organic oxide Organoheterocyclic compound Organonitrogen compound Organopnictogen compound Oxacycle Oxane Polyol Primary alcohol Pyran Secondary alcohol Secondary carboxylic acid amide Solid logp -3.21 ALOGPS logs -1.13 ALOGPS solubility 7.41e+01 g/l ALOGPS logp -12 ChemAxon pka_strongest_acidic 2.86 ChemAxon pka_strongest_basic -3.7 ChemAxon iupac (2R,4S,5R,6R)-2-{[(2R,3S,4R,5R,6S)-6-{[(2R,3S,4S,5R,6S)-3,5-dihydroxy-2-(hydroxymethyl)-6-{[(2R,3R,4R,5R)-1,2,4,5-tetrahydroxy-6-oxohexan-3-yl]oxy}oxan-4-yl]oxy}-5-acetamido-3-hydroxy-4-{[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxan-2-yl]methoxy}-5-acetamido-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid ChemAxon average_mass 998.8842 ChemAxon mono_mass 998.343824032 ChemAxon smiles CC(=O)N[C@@H]1[C@@H](O)C[C@@](OC[C@H]2O[C@@H](O[C@H]3[C@@H](O)[C@@H](CO)O[C@@H](O[C@H]([C@H](O)CO)[C@H](O)[C@@H](O)C=O)[C@@H]3O)[C@H](NC(C)=O)[C@@H](O[C@@H]3O[C@H](CO)[C@H](O)[C@H](O)[C@H]3O)[C@@H]2O)(O[C@H]1[C@H](O)[C@H](O)CO)C(O)=O ChemAxon formula C37H62N2O29 ChemAxon inchi InChI=1S/C37H62N2O29/c1-10(45)38-19-12(47)3-37(36(59)60,68-31(19)22(52)14(49)5-41)61-9-18-25(55)30(66-34-27(57)26(56)23(53)16(7-43)62-34)20(39-11(2)46)33(64-18)67-32-24(54)17(8-44)63-35(28(32)58)65-29(15(50)6-42)21(51)13(48)4-40/h4,12-35,41-44,47-58H,3,5-9H2,1-2H3,(H,38,45)(H,39,46)(H,59,60)/t12-,13-,14+,15+,16+,17+,18+,19+,20+,21+,22+,23-,24-,25+,26-,27+,28+,29+,30+,31+,32-,33-,34-,35-,37+/m0/s1 ChemAxon inchikey SFMRPVLZMVJKGZ-JRZQLMJNSA-N ChemAxon polar_surface_area 510.09 ChemAxon refractivity 205.96 ChemAxon polarizability 94.87 ChemAxon rotatable_bond_count 22 ChemAxon acceptor_count 29 ChemAxon donor_count 19 ChemAxon physiological_charge -1 ChemAxon formal_charge 0 ChemAxon Specdb::NmrOneD 81392 Specdb::NmrOneD 81393 Specdb::NmrOneD 81394 Specdb::NmrOneD 81395 Specdb::NmrOneD 81396 Specdb::NmrOneD 81397 Specdb::NmrOneD 81398 Specdb::NmrOneD 81399 Specdb::NmrOneD 81400 Specdb::NmrOneD 81401 Specdb::NmrOneD 81402 Specdb::NmrOneD 81403 Specdb::NmrOneD 81404 Specdb::NmrOneD 81405 Specdb::NmrOneD 81406 Specdb::NmrOneD 81407 Specdb::NmrOneD 81408 Specdb::NmrOneD 81409 Specdb::NmrOneD 81410 Specdb::NmrOneD 81411 Specdb::MsMs 324346 Specdb::MsMs 324347 Specdb::MsMs 324348 Specdb::MsMs 372730 Specdb::MsMs 372731 Specdb::MsMs 372732 Specdb::MsMs 2453137 Specdb::MsMs 2453138 Specdb::MsMs 2453139 Specdb::MsMs 2482630 Specdb::MsMs 2482631 Specdb::MsMs 2482632 HMDB06600 #<Reference:0x000055ce3325bbb8> #<Reference:0x000055ce3325ba00> #<Reference:0x000055ce3325b848> #<Reference:0x000055ce3325b690> #<Reference:0x000055ce3325b4d8> #<Reference:0x000055ce3325b320> Anatidae Type 1 specific Anatidae 8830 Beefalo Type 1 specific Bos taurus X Bison bison 297284 Bison Type 1 specific Bison bison 9901 Buffalo Type 1 specific Bubalus bubalis 89462 Cattle (Beef, Veal) Type 1 specific Bos taurus 9913 Chicken Type 1 specific Gallus gallus 9031 Columbidae (Dove, Pigeon) Type 1 specific Columbidae 8930 Deer Type 1 specific Cervidae 9850 Domestic goat Type 1 specific Capra aegagrus hircus 9925 Domestic pig Type 1 specific Sus scrofa domestica 9825 Elk Type 1 specific Cervus canadensis 1574408 Emu Type 1 specific Dromaius novaehollandiae 8790 European rabbit Type 1 specific Oryctolagus 9984 Greylag goose Type 1 specific Anser anser 8843 Guinea hen Type 1 specific Numida meleagris 8996 Horse Type 1 specific Equus caballus 9796 Mallard duck Type 1 specific Anas platyrhynchos 8839 Mountain hare Type 1 specific Lepus timidus 62621 Mule deer Type 1 specific Odocoileus 9871 Ostrich Type 1 specific Struthio camelus 8801 Pheasant Type 1 specific Phasianus colchicus 9054 Quail Type 1 specific Phasianidae 9005 Rabbit Type 1 specific Leporidae 9979 Rock ptarmigan Type 1 specific Lagopus muta 64668 Sheep (Mutton, Lamb) Type 1 specific Ovis aries 9940 Squab Type 1 specific Columba 8931 Turkey Type 1 specific Meleagris gallopavo 9103 Velvet duck Type 1 specific Melanitta fusca 371864 Wild boar Type 1 specific Sus scrofa 9823