SIA

N-acetyl-alpha-neuraminic acid

Created:	1999-07-08
Last modified:	2024-09-27

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157 entries where SIA is found as a standalone ligand8 entries where SIA is covalently linked to polymer or other heterogen groups 459 entries where SIA is found in a branched oligosaccharide

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Chemical Details
Formal Charge	0
Atom Count	40
Chiral Atom Count	6
Bond Count	40
Aromatic Bond Count	0

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Chemical Component Summary
Name	N-acetyl-alpha-neuraminic acid
Synonyms	N-acetylneuraminic acid; sialic acid; alpha-sialic acid; O-SIALIC ACID
Systematic Name (OpenEye OEToolkits)	(2R,4S,5R,6R)-5-acetamido-2,4-dihydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid
Formula	C₁₁ H₁₉ N O₉
Molecular Weight	309.27
Type	D-SACCHARIDE, ALPHA LINKING

Chemical Descriptors
Type	Program	Version	Descriptor
SMILES	ACDLabs	10.04	O=C(O)C1(O)OC(C(O)C(O)CO)C(NC(=O)C)C(O)C1
SMILES	CACTVS	3.341	CC(=O)N[CH]1[CH](O)C[C](O)(O[CH]1[CH](O)[CH](O)CO)C(O)=O
SMILES	OpenEye OEToolkits	1.5.0	CC(=O)NC1C(CC(OC1C(C(CO)O)O)(C(=O)O)O)O
Canonical SMILES	CACTVS	3.341	CC(=O)N[C@@H]1[C@@H](O)C[C@@](O)(O[C@H]1[C@H](O)[C@H](O)CO)C(O)=O
Canonical SMILES	OpenEye OEToolkits	1.5.0	CC(=O)N[C@@H]1[C@H](C[C@@](O[C@H]1[C@@H]([C@@H](CO)O)O)(C(=O)O)O)O
InChI	InChI	1.03	InChI=1S/C11H19NO9/c1-4(14)12-7-5(15)2-11(20,10(18)19)21-9(7)8(17)6(16)3-13/h5-9,13,15-17,20H,2-3H2,1H3,(H,12,14)(H,18,19)/t5-,6+,7+,8+,9+,11+/m0/s1
InChIKey	InChI	1.03	SQVRNKJHWKZAKO-YRMXFSIDSA-N

Drug Info: DrugBank

DrugBank ID	DB03721
Name	N-acetyl-alpha-neuraminic acid
Groups	experimental
Description	An N-acyl derivative of neuraminic acid. N-acetylneuraminic acid occurs in many polysaccharides, glycoproteins, and glycolipids in animals and bacteria. (From Dorland, 28th ed, p1518)
Synonyms	O-sialic acid N-acetyl-alpha-neuraminic acid α-Neu5Ac N-Acetyl-alpha-D-neuraminic acid
CAS number	21646-00-4

Drug Targets

Name	Target Sequence	Pharmacological Action
3-deoxy-manno-octulosonate cytidylyltransferase	MSKAVIVIPARYGSSRLPGKPLLDIVGKPMIQHVYERALQVAGVAEVWVA...	unknown
Tetanus toxin	MPITINNFRYSDPVNNDTIIMMEPPYCKGLDIYYKAFKITDRIWIVPERY...	unknown
Cholera enterotoxin subunit B	MIKLKFGVFFTVLLSSAYAHGTPQNITDLCAEYHNTQIYTLNDKIFSYTE...	unknown
Botulinum neurotoxin type B	MPVTINNFNYNDPIDNNNIIMMEPPFARGTGRYYKAFKITDRIWIIPERY...	unknown
P-selectin	MANCQIAILYQRFQRVVFGISQLLCFSALISELTNQKEVAAWTYHYSTKA...	unknown
Mannose-binding protein C	MSLFPSLPLLLLSMVAASYSETVTCEDAQKTCPAVIACSSPGINGFPGKD...	unknown
E-selectin	MIASQFLSALTLVLLIKESGAWSYNTSTEAMTYDEASAYCQQRYTHLVAI...	unknown
Lithostathine-1-alpha	MAQTSSYFMLISCLMFLSQSQGQEAQTELPQARISCPEGTNAYRSYCYYF...	unknown
Endo-N-acetylneuraminidase	MSTITQFPSGNTQYRIEFDYLARTFVVVTLVNSSNPTLNRVLEVGRDYRF...	unknown
Enterotoxin type B	MYKRLFISHVILIFALILVISTPNVLAESQPDPKPDELHKSSKFTGLMEN...	unknown
Neuraminidase	MNPNQKILCTSATALVIGTIAVLIGITNLGLNIGLHLKPSCNCSHSQPEA...	unknown
Hemagglutinin-neuraminidase	MDRAVSQVALENDEREAKNTWRLIFRIAILLLTVVTLATSVASLVYSMGA...	unknown
Fiber	MSKRLRVEDDFNPVYPYGYARNQNIPFLTPPFVSSDGFKNFPPGVLSLKL...	unknown
Sialoadhesin	MGFLPKLLLLASFFPAGQASWGVSSPQDVQGVKGSCLLIPCIFSFPADVE...	unknown
Zinc-alpha-2-glycoprotein	MVRMVPVLLSLLLLLGPAVPQENQDGRYSLTYIYTGLSKHVEDVPAFQAL...	unknown
Capsid protein VP1	MAPKRKSGVSKCETKCTKACPRPAPVPKLLIKGGMEVLDLVTGPDSVTEI...	unknown
Fiber	MSKRLRVEDDFNPVYPYGYARNQNIPFLTPPFVSSDGFKNFPPGVLSLKL...	unknown
Liver carboxylesterase 1	MWLRAFILATLSASAAWGHPSSPPVVDTVHGKVLGKFVSLEGFAQPVAIF...	unknown
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Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682