1.0 2011-09-21 00:38:16 UTC 2015-07-21 06:57:58 UTC FDB023998 Sialyl Lewis(a) pentasaccharide Sialyl Lewisa pentasaccharide is a human E-selectin (endothelial adhesion molecule) ligand. The cell adhesion molecule E-selectin, which is expressed on cytokine-stimulated endothelial cells, binds to neutrophils, monocytes, and a subpopulation of memory T-cells. This protein has an established role at the initial stepins the recruitment of leukocytes to sites of inflammation, and there is also much interest in the part that it plays in the hematogenous spread of cancer cells. Interference with selectin binding results in inhibition of the later steps that promote leukocyte extravasation. There is therefore much interest in defining the ligands that support adhesion, as a lead to design of adhesion inhibitors that may serve as drugs for the treatment of disorders of inflammation and for minimizing risk of metastasis during surgical resections of tumors. As predicted from the presence of a lectin-like module at the amino-terminal endof the extracellular domain, E-selectin is a carbohydrate-binding protein. The established ligands for E-selectin include a family of blood group-related fucooligosaccharides that occur as differentiation antigens of granulocytes and monocytes (Lex and 3'-sialyl-Lex) and of epithelial tumors (Lea and 3'-sialyl-Lea). Adhesion to the sialyl antigens is substantially greater than to the asialo analogues (PMID:7507478) [HMDB] O-(N-acetyl-alpha-neuraminosyl)-(2->3)-O-beta-D-galactopyranosyl-(1->3)-O-[6-deoxy-alpha-L-galactopyranosyl-(1->4)]-O-2-(acetylamino)-2-deoxy-alpha-D-glucopyranosyl-(1->3)-O-beta-D-galactopyranosyl-(1->4)- D-Glucose O-(N-acetyl-alpha-neuraminosyl)-(2->3)-O-beta-delta-galactopyranosyl-(1->3)-O-[6-deoxy-alpha-L-galactopyranosyl-(1->4)]-O-2-(acetylamino)-2-deoxy-alpha-delta-glucopyranosyl-(1->3)-O-beta-delta-galactopyranosyl-(1->4)- D-Glucose C43H72N2O33 1145.0254 1144.40173284 (2S,4S,5R,6R)-2-{[(2R,3R,5S,6R)-2-{[(2S,3R,5S,6R)-2-{[(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}-3-acetamido-6-(hydroxymethyl)-5-{[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy}oxan-4-yl]oxy}-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy}-5-acetamido-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid (2S,4S,5R,6R)-2-{[(2R,3R,5S,6R)-2-{[(2S,3R,5S,6R)-2-{[(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}-3-acetamido-6-(hydroxymethyl)-5-{[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy}oxan-4-yl]oxy}-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy}-5-acetamido-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid 84061-53-0 C[C@@H]1O[C@@H](O[C@@H]2[C@@H](CO)O[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)C2O[C@@H]2O[C@H](CO)[C@H](O)C(O[C@@]3(C[C@H](O)[C@@H](NC(C)=O)[C@@H](O3)[C@H](O)[C@H](O)CO)C(O)=O)[C@H]2O)[C@@H](O)[C@H](O)[C@@H]1O InChI=1S/C43H72N2O33/c1-11-23(58)28(63)29(64)39(69-11)74-33-20(10-51)72-38(76-36-26(61)18(8-49)70-40(30(36)65)73-32(17(57)7-48)24(59)15(55)5-46)22(45-13(3)53)35(33)75-41-31(66)37(27(62)19(9-50)71-41)78-43(42(67)68)4-14(54)21(44-12(2)52)34(77-43)25(60)16(56)6-47/h5,11,14-41,47-51,54-66H,4,6-10H2,1-3H3,(H,44,52)(H,45,53)(H,67,68)/t11-,14-,15-,16+,17+,18+,19+,20+,21+,22+,23+,24+,25+,26-,27-,28+,29-,30+,31+,32+,33+,34+,35?,36-,37?,38-,39-,40-,41-,43-/m0/s1 DBXMZPZIFJCVQO-RKVJIPOWSA-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 -2.40 ALOGPS logs -0.92 ALOGPS solubility 1.38e+02 g/l ALOGPS logp -12 ChemAxon pka_strongest_acidic 2.87 ChemAxon pka_strongest_basic -3.9 ChemAxon iupac (2S,4S,5R,6R)-2-{[(2R,3R,5S,6R)-2-{[(2S,3R,5S,6R)-2-{[(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}-3-acetamido-6-(hydroxymethyl)-5-{[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy}oxan-4-yl]oxy}-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy}-5-acetamido-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid ChemAxon average_mass 1145.0254 ChemAxon mono_mass 1144.40173284 ChemAxon smiles C[C@@H]1O[C@@H](O[C@@H]2[C@@H](CO)O[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)C2O[C@@H]2O[C@H](CO)[C@H](O)C(O[C@@]3(C[C@H](O)[C@@H](NC(C)=O)[C@@H](O3)[C@H](O)[C@H](O)CO)C(O)=O)[C@H]2O)[C@@H](O)[C@H](O)[C@@H]1O ChemAxon formula C43H72N2O33 ChemAxon inchi InChI=1S/C43H72N2O33/c1-11-23(58)28(63)29(64)39(69-11)74-33-20(10-51)72-38(76-36-26(61)18(8-49)70-40(30(36)65)73-32(17(57)7-48)24(59)15(55)5-46)22(45-13(3)53)35(33)75-41-31(66)37(27(62)19(9-50)71-41)78-43(42(67)68)4-14(54)21(44-12(2)52)34(77-43)25(60)16(56)6-47/h5,11,14-41,47-51,54-66H,4,6-10H2,1-3H3,(H,44,52)(H,45,53)(H,67,68)/t11-,14-,15-,16+,17+,18+,19+,20+,21+,22+,23+,24+,25+,26-,27-,28+,29-,30+,31+,32+,33+,34+,35?,36-,37?,38-,39-,40-,41-,43-/m0/s1 ChemAxon inchikey DBXMZPZIFJCVQO-RKVJIPOWSA-N ChemAxon polar_surface_area 569.01 ChemAxon refractivity 236.83 ChemAxon polarizability 107.45 ChemAxon rotatable_bond_count 24 ChemAxon acceptor_count 33 ChemAxon donor_count 21 ChemAxon physiological_charge -1 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 290563 Specdb::MsMs 290564 Specdb::MsMs 290565 Specdb::MsMs 330268 Specdb::MsMs 330269 Specdb::MsMs 330270 Specdb::MsMs 2303034 Specdb::MsMs 2303035 Specdb::MsMs 2303036 Specdb::MsMs 3065237 Specdb::MsMs 3065238 Specdb::MsMs 3065239 Specdb::NmrOneD 88072 Specdb::NmrOneD 88073 Specdb::NmrOneD 88074 Specdb::NmrOneD 88075 Specdb::NmrOneD 88076 Specdb::NmrOneD 88077 Specdb::NmrOneD 88078 Specdb::NmrOneD 88079 Specdb::NmrOneD 88080 Specdb::NmrOneD 88081 Specdb::NmrOneD 88082 Specdb::NmrOneD 88083 Specdb::NmrOneD 88084 Specdb::NmrOneD 88085 Specdb::NmrOneD 88086 Specdb::NmrOneD 88087 Specdb::NmrOneD 88088 Specdb::NmrOneD 88089 Specdb::NmrOneD 88090 Specdb::NmrOneD 88091 HMDB06605 #<Reference:0x000055ce33451738> 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