KEGG2 icon  Monosaccharide Codes

Monosaccharide codes in KEGG and SNFG (Symbol Nomenclature for Glycans)

Hexose (six-carbon sugar)
Hex Hexose
Glc Glc D-Glucose D-Glucopyranose
Galf D-Galactofuranose D-Galactofuranose
Gal Gal D-Galactose D-Galactopyranose
LGal L-Galactose L-Galactopyranose
Man Man D-Mannose D-Mannopyranose
All All D-Allose D-Allopyranose
Alt LAlt L-Altrose L-Altropyranose
Gul Gul D-Gulose D-Gulopyranose
Ido LIdo L-Idose L-Idopyranose
Tal Tal D-Talose D-Talopyranose
Pentose (five-carbon sugar)
Ribf D-Ribose D-Ribofuranose
Rib Rib D-Ribose D-Ribopyranose
Araf D-Arabinose D-Arabinofuranose
Ara D-Arabinose D-Arabinopyranose
LAraf L-Arabinose L-Arabinofuranose
Ara LAra L-Arabinose L-Arabinopyranose
Xyl Xyl D-Xylose D-Xylopyranose
Lyx Lyx D-Lyxose D-Lyxopyranose
Tetrose (four-carbon sugar)
Ery D-Erythrose D-Erythrofuranose
Tho D-Threose D-Threofuranose
Heptose (seven-carbon sugar)
Hep Heptose
LDmanHep Lgro-manHep L-glycero-D-manno-Heptose L-glycero-D-manno-Heptopyranose (LDmanHep)
DDmanHep gro-manHep D-glycero-D-manno-Heptose D-glycero-D-manno-Heptopyranose (DDmanHep)
Deoxysugar (hexose or pentose without a hydroxyl group at the 6-position or the 2-position)
6dAlt L6dAlt 6-Deoxy-L-altrose 6-Deoxy-L-altropyranose
6dGul 6dGul 6-Deoxy-D-gulose 6-Deoxy-D-gulopyranose
6dTal 6dTal 6-Deoxy-D-talose 6-Deoxy-D-talopyranose
Fuc D-Fucose 6-Deoxy-D-galactopyranose
Fuc LFuc L-Fucose 6-Deoxy-L-galactopyranose
Rha D-Rhamnose 6-Deoxy-D-mannopyranose
Rha LRha L-Rhamnose 6-Deoxy-L-mannopyranose
Qui Qui D-Quinovose 6-Deoxy-D-glucopyranose
2dGlc 2-Deoxyglucose 2-Deoxy-D-arabino-hexose
dRib 2-Deoxyribose 2-Deoxy-D-erythro-pentose
Di-deoxysugar (hexose without hydroxyl groups at the 6-position and another position)
Oli Oli Olivose 2,6-Dideoxy-D-arabino-hexopyranose (2,6daraHex)
Tyv Tyv Tyvelose 3,6-Dideoxy-D-arabino-hexopyranose (3,6daraHex)
Asc Ascarylose 3,6-Dideoxy-L-arabino-hexopyranose (L3,6daraHex)
Abe Abe Abequose 3,6-Dideoxy-D-xylo-hexopyranose (3,6dxylHex)
Par Par Paratose 3,6-Dideoxy-D-ribo-hexopyranose (3,6dribHex)
Dig Dig Digitoxose 2,6-Dideoxy-D-ribo-hexopyranose (2,6dribHex)
Col Col Colitose 3,6-Dideoxy-L-xylo-hexopyranose (L3,6dxylHex)
Amino sugar (hexose with an amino group at the 2-position)
GlcN GlcN D-Glucosamine 2-Amino-2-deoxy-D-glucopyranose
GalN GalN D-Galactosamine 2-Amino-2-deoxy-D-galactopyranose
ManN ManN D-Mannosamine 2-Amino-2-deoxy-D-mannopyranose
AllN AllN D-Allosamine 2-Amino-2-deoxy-D-allopyranose
AltN LAltN L-Altrosamine 2-Amino-2-deoxy-L-altropyranose
GulN GulN D-Gulosamine 2-Amino-2-deoxy-D-gulopyranose
IdoN LIdoN L-Idosamine 2-Amino-2-deoxy-L-idopyranose
TalN TalN D-Talosamine 2-Amino-2-deoxy-D-talopyranose
Amino sugar (hexose with an N-acetylated amino group at the 2-position)
GlcNAc GlcNAc N-Acetyl-D-glucosamine 2-Acetamido-2-deoxy-D-glucopyranose
GalNAc GalNAc N-Acetyl-D-galactosamine 2-Acetamido-2-deoxy-D-galactopyranose
ManNAc ManNAc N-Acetyl-D-mannosamine 2-Acetamido-2-deoxy-D-mannopyranose
AllNAc AllNAc N-Acetyl-D-allosamine 2-Acetamido-2-deoxy-D-allopyranose
AltNAc LAltNAc N-Acetyl-L-altrosamine 2-Acetamido-2-deoxy-L-altropyranose
GulNAc GulNAc N-Acetyl-D-gulosamine 2-Acetamido-2-deoxy-D-gulopyranose
IdoNAc LIdoNAc N-Acetyl-L-idosamine 2-Acetamido-2-deoxy-L-idopyranose
TalNAc TalNAc N-Acetyl-D-talosamine 2-Acetamido-2-deoxy-D-talopyranose
FucNAc N-Acetyl-D-fucosamine 2-Acetamido-2,6-dideoxy-D-galactopyranose
FucNAc LFucNAc N-Acetyl-L-fucosamine 2-Acetamido-2,6-dideoxy-L-galactopyranose
RhaNAc LRhaNAc N-Acetyl-L-rhamnosamine 2-Acetamido-2,6-dideoxy-L-mannopyranose
QuiNAc QuiNAc N-Acetyl-D-quinovosamine 2-Acetamido-2,6-dideoxy-D-glucopyranose
6dAltNAc L6dAltNAc N-Acetyl-6-deoxy-L-altrosamine 2-Acetamido-2,6-dideoxy-L-altropyranose
6dTalNAc 6dTalNAc N-Acetyl-6-deoxy-D-talosamine 2-Acetamido-2,6-dideoxy-D-talopyranose
Uronic acid (hexose with a negatively charged carboxylate at the 6-position)
GlcA GlcA D-Glucuronic acid D-Glucopyranuronic acid
GalA GalA D-Galacturonic acid D-Galactopyranuronic acid
ManA ManA D-Mannuronic acid D-Mannopyranuronic acid
AllA AllA D-Alluronic acid D-Allopyranuronic acid
AltA LAltA L-Altruronic acid L-Altropyranuronic acid
GulA GulA D-Guluronic acid D-Gulopyranuronic acid
LGulA L-Guluronic acid L-Gulopyranuronic acid
IdoA LIdoA L-Iduronic acid L-Idopyranuronic acid
TalA TalA D-Taluronic acid D-Talopyranuronic acid
Sialic acid (nine-carbon acidic sugar)
Sia Sia Sialic acid
Neu Neu Neuraminic acid 5-Amino-3,5-dideoxy-D-glycero-D-galacto-non-2-ulosonic acid
Neu5Ac Neu5Ac N-Acetylneuraminic acid 5-Acetamido-3,5-dideoxy-D-glycero-D-galacto-non-2-ulosonic acid
Neu5Gc Neu5Gc N-Glycolylneuraminic acid 5-Glycolylamido-3,5-dideoxy-D-glycero-D-galacto-non-2-ulosonic acid
Sugar alcohol
Ery-ol Erythritol
Ara-ol Arabinitol
Xyl-ol Xylitol
Rib-ol Ribitol
Glc-ol Glucitol
Gal-ol Galactitol
Man-ol Mannitol
Psi Psi D-Psicose D-ribo-Hex-2-ulopyranose
Fruf D-Fructose D-arabino-Hex-2-ulofuranose (D-fructofuranose)
Fru Fru D-Fructose D-arabino-Hex-2-ulopyranose
Sor LSor L-Sorbose L-xylo-Hex-2-ulopyranose
Tag Tag D-Tagatose D-lyxo-Hex-2-ulopyranose
Xulf D-Xylulose D-threo-Pent-2-ulofuranose (D-xylulofuranose)
Sed D-Sedoheptulose D-altro-Hept-2-ulopyranose
Api Api Apiose 3-C-(Hydroxymethyl)-D-erythofuranose
Bac Bac Bacillosamine 2,4,6-Trideoxy-2,4-diamino-D-glucopyranose
The Thevetose 6-Deoxy-3-O-methyl-D-glucose (Qui3Me)
Aco Acofriose 3-O-Methyl-D-rhamnose (Rha3Me)
LAco L-Acofriose 3-O-Methyl-L-rhamnose (LRha3Me)
Cym Cymarose 2,6-Dideoxy-3-methyl-D-ribo-hexose (Dig3Me)
Mur Mur Muramic acid 2-Amino-3-O-[(R)-1-carboxyethyl]-2-deoxy-D-glucopyranose
MurNAc MurNAc N-Acetylmuramic acid 2-Acetamido-3-O-[(R)-carboxyethyl]-2-deoxy-D-glucopyranose
MurNGc MurNGc N-Glycolylmuramic acid 2-Glycolylamido-3-O-[(R)-1-carboxyethyl]-2-deoxy-D-glucopyranose
Dha Dha 3-Deoxy-lyxo-heptulosaric acid 3-Deoxy-D-lyxo-hept-2-ulopyranosaric acid
Kdo Kdo Ketodeoxyoctonic acid 3-Deoxy-D-manno-oct-2-ulopyranosonic acid
Kdn Kdn Ketodeoxynononic acid 3-Deoxy-D-glycero-D-galacto-non-2-ulopyranosonic acid
Pse Pse Pseudaminic acid 5,7-Diamino-3,5,7,9-tetradeoxy-L-glycero-L-manno-non-2-ulopyranosonic acid
Aci Aci Acinetaminic acid 5,7-Diamino-3,5,7,9-tetradeoxy-L-glycero-L-altro-non-2-ulopyranosonic acid
Leg Leg Legionaminic acid 5,7-Diamino-3,5,7,9-tetradeoxy-D-glycero-D-galacto-non-2-ulopyranosonic acid
4eLeg 4eLeg 4-Epilegionaminic acid 5,7-Diamino-3,5,7,9-tetradeoxy-D-glycero-D-talo-non-2-ulopyranosonic acid

Compound abbreviations: Dol, Dolichol; Cer, Ceramide; Ino, Inositol; P, Phosphoric acid; S, Sulfuric acid; EtN, Ethanolamine; Cho, Choline; Ac, Acetyl group; Py, 1-Carboxyethane-1,1-diyl group; Me, Methyl group; Gro, Glycerol
Configurational prefixes: D, D-form; L, L-form; gro, glycero; ery, erythro; thr, threo; rib, ribo; ara, arabino; xyl, xylo; lyx, lyxo; alt, altro; glc, gluco; man, manno; gul, gulo; gal, galacto; tal, talo
Other prefixes and suffixes: d, deoxy; en, unsaturated; f, furanose; p, pyranose; ol, alditol; onic, aldonic acid

Monosaccharide codes in SNFG: In SNFG absolute configuration is assumed by default L for Ara, Fuc, Ido, IdoA, Rha, Alt, AltA, Sor, Api and D for other monosaccharides. In contrast, default configuration is always D in KEGG. Thus, for example, Ara in SNFG is LAra in KEGG.

Last updated: February 22, 2023