KEGG   REACTION: R01100
Entry
R01100                      Reaction                               
Name
lactose galactohydrolase
Definition
Lactose + H2O <=> D-Glucose + beta-D-Galactose
Equation
C00243 + C00001 <=> C00031 + C00962
Remark
Same as: R06114
Reaction class
RC00049  C00031_C00243  C00243_C00962
Enzyme
3.2.1.23        3.2.1.108
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R01100  Lactose + H2O <=> D-Glucose + beta-D-Galactose
    3.2.1.108
     R01100  Lactose + H2O <=> D-Glucose + beta-D-Galactose
Other DBs
RHEA: 10079 28662
LinkDB

KEGG   REACTION: R01105
Entry
R01105                      Reaction                               
Name
galactan galactohydrolase
Definition
Galactan + H2O <=> D-Galactose + Galactan
Equation
C05796 + C00001 <=> C00124 + C05796
Remark
Same as: R06202
Reaction class
RC00452  C00124_C05796
Enzyme
3.2.1.23
Pathway
rn00052  Galactose metabolism
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R01105  Galactan + H2O <=> D-Galactose + Galactan
Orthology
K01190  beta-galactosidase [EC:3.2.1.23]
K12308  beta-galactosidase [EC:3.2.1.23]
LinkDB

KEGG   REACTION: R01678
Entry
R01678                      Reaction                               
Name
lactose galactohydrolase
Definition
Lactose + H2O <=> alpha-D-Glucose + D-Galactose
Equation
C00243 + C00001 <=> C00267 + C00124
Remark
Same as: R06098
Reaction class
RC00049  C00124_C00243  C00243_C00267
Enzyme
3.2.1.23        3.2.1.108
Pathway
rn00052  Galactose metabolism
rn01100  Metabolic pathways
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R01678  Lactose + H2O <=> alpha-D-Glucose + D-Galactose
    3.2.1.108
     R01678  Lactose + H2O <=> alpha-D-Glucose + D-Galactose
Orthology
K01190  beta-galactosidase [EC:3.2.1.23]
K01229  lactase-phlorizin hydrolase [EC:3.2.1.108 3.2.1.62]
K12111  evolved beta-galactosidase subunit alpha [EC:3.2.1.23]
K12112  evolved beta-galactosidase subunit beta
K12309  beta-galactosidase [EC:3.2.1.23]
LinkDB

KEGG   REACTION: R03355
Entry
R03355                      Reaction                               
Name
beta-D-galactosyl-1,4-beta-D-glucosylceramide galactohydrolase
Definition
Lactosylceramide + H2O <=> Glucosylceramide + D-Galactose
Equation
C01290 + C00001 <=> C01190 + C00124
Remark
Same as: R06099
Reaction class
RC00049  C00124_C01290  C01190_C01290
Enzyme
3.2.1.23
Pathway
rn00600  Sphingolipid metabolism
rn01100  Metabolic pathways
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R03355  Lactosylceramide + H2O <=> Glucosylceramide + D-Galactose
Orthology
K01190  beta-galactosidase [EC:3.2.1.23]
K12309  beta-galactosidase [EC:3.2.1.23]
LinkDB

KEGG   REACTION: R04633
Entry
R04633                      Reaction                               
Name
D-galactosyl-N-acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D- galactosyl-D-glucosylceramide galactohydrolase
Definition
D-Galactosyl-N-acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galactosyl-D-glucosylceramide + H2O <=> N-Acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galactosyl-D-glucosylceramide + D-Galactose
Equation
C04911 + C00001 <=> C04884 + C00124
Remark
Same as: R06010
Reaction class
RC00049  C00124_C04911  C04884_C04911
Enzyme
3.2.1.23
Pathway
rn00600  Sphingolipid metabolism
rn01100  Metabolic pathways
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R04633  D-Galactosyl-N-acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galactosyl-D-glucosylceramide + H2O <=> N-Acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galactosyl-D-glucosylceramide + D-Galactose
Orthology
K12309  beta-galactosidase [EC:3.2.1.23]
LinkDB

KEGG   REACTION: R04783
Entry
R04783                      Reaction                               
Name
3-ketolactose galactohydrolase
Definition
3-Ketolactose + H2O <=> 3-Keto-beta-D-galactose + beta-D-Glucose
Equation
C05403 + C00001 <=> C05394 + C00221
Remark
Same as: R06144
Reaction class
RC00049  C00221_C05403  C05394_C05403
Enzyme
3.2.1.23
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R04783  3-Ketolactose + H2O <=> 3-Keto-beta-D-galactose + beta-D-Glucose
Orthology
K01190  beta-galactosidase [EC:3.2.1.23]
LinkDB

KEGG   REACTION: R05112
Entry
R05112                      Reaction                               
Name
Gal-beta1->3GalNAc-beta1->4Gal-beta1->4Glc-beta1->1'Cer (GA1) galactohydrolase
Definition
GA1 + H2O <=> GA2 + D-Galactose
Equation
C06136 + C00001 <=> C06135 + C00124
Remark
Same as: R05994
Reaction class
RC00049  C00124_C06136  C06135_C06136
Enzyme
3.2.1.23
Pathway
rn00600  Sphingolipid metabolism
rn01100  Metabolic pathways
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R05112  GA1 + H2O <=> GA2 + D-Galactose
Orthology
K12309  beta-galactosidase [EC:3.2.1.23]
LinkDB

KEGG   REACTION: R05994
Entry
R05994                      Reaction                               
Definition
Asialo-GM1 + H2O <=> GA2 + D-Galactose
Equation
G00124 + C00001 <=> G00123 + C00124
Remark
Same as: R05112
Enzyme
3.2.1.23
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R05994  Asialo-GM1 + H2O <=> GA2 + D-Galactose
Orthology
K12309  beta-galactosidase [EC:3.2.1.23]
LinkDB

KEGG   REACTION: R06010
Entry
R06010                      Reaction                               
Definition
GM1 + H2O <=> GM2 + D-Galactose
Equation
G00110 + C00001 <=> G00109 + C00124
Remark
Same as: R04633
Enzyme
3.2.1.23
Pathway
rn00604  Glycosphingolipid biosynthesis - ganglio series
rn01100  Metabolic pathways
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R06010  GM1 + H2O <=> GM2 + D-Galactose
Orthology
K12309  beta-galactosidase [EC:3.2.1.23]
LinkDB

KEGG   REACTION: R06098
Entry
R06098                      Reaction                               
Definition
Lactose + H2O <=> alpha-D-Glucose + D-Galactose
Equation
G10504 + C00001 <=> C00267 + C00124
Remark
Same as: R01678
Enzyme
3.2.1.23        3.2.1.108
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R06098  Lactose + H2O <=> alpha-D-Glucose + D-Galactose
    3.2.1.108
     R06098  Lactose + H2O <=> alpha-D-Glucose + D-Galactose
LinkDB

KEGG   REACTION: R06099
Entry
R06099                      Reaction                               
Definition
Lactosylceramide + H2O <=> Glucosylceramide + D-Galactose
Equation
G00092 + C00001 <=> G10238 + C00124
Remark
Same as: R03355
Enzyme
3.2.1.23
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R06099  Lactosylceramide + H2O <=> Glucosylceramide + D-Galactose
LinkDB

KEGG   REACTION: R06114
Entry
R06114                      Reaction                               
Definition
Lactose + H2O <=> D-Glucose + beta-D-Galactose
Equation
G10504 + C00001 <=> C00031 + C00962
Remark
Same as: R01100
Enzyme
3.2.1.23        3.2.1.108
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R06114  Lactose + H2O <=> D-Glucose + beta-D-Galactose
    3.2.1.108
     R06114  Lactose + H2O <=> D-Glucose + beta-D-Galactose
Orthology
K01190  beta-galactosidase [EC:3.2.1.23]
K01229  lactase-phlorizin hydrolase [EC:3.2.1.108 3.2.1.62]
K12111  evolved beta-galactosidase subunit alpha [EC:3.2.1.23]
LinkDB

KEGG   REACTION: R06144
Entry
R06144                      Reaction                               
Definition
3-Ketolactose + H2O <=> 3-Keto-beta-D-galactose + beta-D-Glucose
Equation
G10531 + C00001 <=> C05394 + C00221
Remark
Same as: R04783
Enzyme
3.2.1.23
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R06144  3-Ketolactose + H2O <=> 3-Keto-beta-D-galactose + beta-D-Glucose
LinkDB

KEGG   REACTION: R06202
Entry
R06202                      Reaction                               
Definition
G10534(n+1) + H2O <=> D-Galactose + G10534(n)
Equation
G10534(n+1) + C00001 <=> C00124 + G10534(n)
Remark
Same as: R01105
Enzyme
3.2.1.23
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R06202  G10534(n+1) + H2O <=> D-Galactose + G10534(n)
LinkDB

KEGG   REACTION: R07807
Entry
R07807                      Reaction                               
Definition
G01977 + H2O <=> G13073 + D-Galactose
Equation
G01977 + C00001 <=> G13073 + C00124
Enzyme
3.2.1.23
Pathway
rn00531  Glycosaminoglycan degradation
rn01100  Metabolic pathways
Module
M00079  Keratan sulfate degradation
Brite
Enzymatic reactions [BR:br08201]
 3. Hydrolase reactions
  3.2  Glycosylases
   3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
    3.2.1.23
     R07807  G01977 + H2O <=> G13073 + D-Galactose
Orthology
K12309  beta-galactosidase [EC:3.2.1.23]
LinkDB

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