alpha-D-galactose

362,296 routes · scope human · up to 3 steps · built 5 October 2026 · Reactions · API

65 compounds within 3 steps: 4 in 1, 11 in 2, 50 in 3

One step

galactitolReach from here →
1. galactitol:NADP+ 1-oxidoreductase
Catalysed by AKR1B1cytosol
a beta-D-Gal-(1->4)-beta-D-Glc-(1<->1)-Cer(d18:1(4E))Reach from here →
1. beta-galactosidase (galactose)
Catalysed by LCT, GLB1, GLB1Lextracellular space
beta-D-galactoseReach from here →
1. galactose[n] = beta-D-galactose[n]
Catalysed by GALMnucleusOne of 2 routes
alpha-D-galactose 1-phosphateReach from here →
1. galactokinase (galactose)
Catalysed by GALK1, GALK2cytosolOne of 2 routes

Two steps

a beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1)-Cer(d18:1(4E))Reach from here →
1. beta-galactosidase (galactose)
2. UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase (LacCer pool)
Catalysed by LCT, GLB1, GLB1L, B3GNT5extracellular space, cytosolOne of 3 routes
a globoside Gb3Cer (d18:1(4E))Reach from here →
1. beta-galactosidase (galactose)
2. alpha 1,4-galactosyltransferase (P blood group) (LacCer pool)
Catalysed by LCT, GLB1, GLB1L

Three steps

, A4GALT

extracellular space, cytosol

One of 3 routes

D-glucosyl-N-acylsphingosineReach from here →

Catalysed by LCT, GLB1, GLB1L, TMPPEextracellular space, lysosome

a ganglioside GA2 (d18:1(4E))Reach from here →

Catalysed by LCT, GLB1, GLB1L, B4GALNT1extracellular space, cytosolOne of 3 routes

D-galactoseReach from here →

Catalysed by GALK1, GALK2, IMPA1cytosolOne of 2 routes

an isogloboside iGb3Cer (d18:1(4E))Reach from here →

Catalysed by LCT, GLB1, GLB1L, A3GALT2extracellular space

alpha-D-glucose 1-phosphateReach from here →

Catalysed by GALK1, GALK2, GALTcytosol

a ganglioside GM3 (d18:1(4E))Reach from here →

Catalysed by LCT, GLB1, GLB1L, ST3GAL5extracellular space, cytosolOne of 3 routes

UDP-alpha-D-galactoseReach from here →

Catalysed by GALK1, GALK2, GALTcytosol

CHEBI:67119Reach from here →

Catalysed by GALK1, GALK2, GALTcytosolOne of 2 routes

beta-D-3-sulfogalactosyl-(1->4)-beta-D-glucosyl-(1<->1')-N-acylsphing-4-enineReach from here →

Catalysed by LCT, GLB1, GLB1L, GAL3ST1extracellular space

Catalysed by GALK1, GALK2, GALT, C1GALT1cytosol

a beta-D-galactosyl-(1->3)-N-acetyl-beta-D-glucosaminyl derivativeReach from here →

Catalysed by GALK1, GALK2, GALT, B3GALT2 and 1 morecytosol

a beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl derivativeReach from here →

Catalysed by GALK1, GALK2, GALT, B4GALT3 and 2 morecytosol

an alpha-D-galactosyl-(1->3)-beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl derivativeReach from here →

Catalysed by GALK1, GALK2, GALT, A3GALT2cytosol

an alpha-D-galactosyl-(1->3)-[alpha-L-fucosyl-(1->2)]-beta-D-galactosyl derivativeReach from here →

Catalysed by GALK1, GALK2, GALT, ABOcytosol

a globoside NOR1Reach from here →

Catalysed by GALK1, GALK2, GALT, A4GALTcytosol

a globoside GalGb3CerReach from here →

Catalysed by GALK1, GALK2, GALT, A3GALT2cytosol

a beta-D-Gal-(1<->1')-ceramideReach from here →

Catalysed by GALK1, GALK2, GALT, UGT8cytosol

alpha-D-Gal-(1->4)-beta-D-Gal-(1<->1')-CerReach from here →

Catalysed by GALK1, GALK2, GALT, A4GALTcytosol

D-galactono-1,5-lactoneReach from here →

Catalysed by GALK1, GALK2, IMPA1, DHDHcytosol

psychosineReach from here →

Catalysed by GALK1, GALK2, GALTcytosol

a neolactoside nLc4Cer(d18:1(4E))Reach from here →

Catalysed by LCT, GLB1, GLB1L, B3GNT5 and 4 moreextracellular space, cytosolOne of 4 routes

a beta-D-Gal-(1->3)-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1')-Cer(d18:1(4E))Reach from here →

Catalysed by LCT, GLB1, GLB1L, B3GNT5 and 3 moreextracellular space, cytosolOne of 6 routes

lactoseReach from here →

Catalysed by GALK1, GALK2, GALT, B4GALT2 and 1 morecytosol

a globoside Gb4Cer (d18:1(4E))Reach from here →

Catalysed by LCT, GLB1, GLB1L, A4GALTextracellular space, cytosolOne of 4 routes

a beta-D-galactosyl-(1<->1')-N-acylsphing-4-enineReach from here →

Catalysed by GALK1, GALK2, GALT, UGT8cytosol

a lysoGb3(d18:1(4E))Reach from here →

Catalysed by LCT, GLB1, GLB1L, A4GALT and 1 moreextracellular space, cytosol

an alpha-D-Gal-(1->3)-[alpha-L-Fuc-(1->2)]-beta-D-Gal-(1->4)-beta-D-GlcNAc derivativeReach from here →

Catalysed by GALK1, GALK2, GALT, ABOcytosol

an alpha-D-Gal-(1->3)-[alpha-L-Fuc-(1->2)]-beta-D-Gal-(1->3)-alpha-D-GalNAc derivativeReach from here →

Catalysed by GALK1, GALK2, GALT, ABOcytosol

an alpha-D-Gal-(1->3)-[alpha-L-Fuc-(1->2)]-beta-D-Gal-(1->4)-beta-D-Glc derivativeReach from here →

Catalysed by GALK1, GALK2, GALT, ABOcytosol

an alpha-D-Gal-(1->3)-[alpha-L-Fuc-(1->2)]-beta-D-Gal-(1->3)-beta-D-GlcNAc derivativeReach from here →

Catalysed by GALK1, GALK2, GALT, ABOcytosol

an alpha-D-Gal-(1->3)-[alpha-L-Fuc-(1->2)]-beta-D-Gal-(1->3)-beta-D-GalNAc derivativeReach from here →

Catalysed by GALK1, GALK2, GALT, ABOcytosol

a ganglioside GA1 (d18:1(4E))Reach from here →

Catalysed by LCT, GLB1, GLB1L, B4GALNT1 and 1 moreextracellular space, cytosolOne of 2 routes

a fatty acidReach from here →

Catalysed by LCT, GLB1, GLB1L, A4GALT and 1 moreextracellular space, cytosol

N-acetylneuraminateReach from here →

Catalysed by LCT, GLB1, GLB1L, ST3GAL5 and 2 moreextracellular space, cytosol

alpha-lactoseReach from here →

Catalysed by GALK1, GALK2, GALT, B4GALT2 and 2 morecytosol, Golgi apparatus

D-glucoseReach from here →

Catalysed by LCT, GLB1, GLB1L, TMPPE and 3 moreextracellular space, lysosome, cytosolOne of 4 routes

N-acetyl-beta-neuraminic acidReach from here →

Catalysed by LCT, GLB1, GLB1L, ST3GAL5 and 4 moreextracellular space, cytosolOne of 4 routes

an N-acylsphing-4-enineReach from here →

Catalysed by LCT, GLB1, GLB1L, TMPPE and 3 moreextracellular space, lysosome, cytosolOne of 3 routes

UDP-N-acetyl-alpha-D-glucosamineReach from here →

Catalysed by GALK1, GALK2, GALT, SLC35A2cytosol, inner side of the membrane, outer side of the membraneOne of 2 routes

alpha-D-glucose 6-phosphateReach from here →

Catalysed by GALK1, GALK2, GALT, PGM1 and 1 morecytosol

(2R)-3-phosphoglycerateReach from here →

Catalysed by GALK1, GALK2, GALT, PGM2L1cytosol

alpha-D-glucose 1,6-bisphosphateReach from here →

Catalysed by GALK1, GALK2, GALT, PGM2L1cytosolOne of 2 routes

UDP-alpha-D-glucoseReach from here →

Catalysed by GALK1, GALK2, GALTcytosolOne of 6 routes