KEGG   COMPOUND: C00243
Entry
C00243                      Compound                               
Name
Lactose;
1-beta-D-Galactopyranosyl-4-D-glucopyranose;
beta-D-Gal-(1->4)-D-Glc;
Milk sugar
Formula
C12H22O11
Exact mass
342.1162
Mol weight
342.2965
Structure
Remark
Same as: D00046 G10504
Reaction
Pathway
map00052  Galactose metabolism
map01100  Metabolic pathways
map02010  ABC transporters
map02060  Phosphotransferase system (PTS)
map04973  Carbohydrate digestion and absorption
Enzyme
1.1.99.13       2.4.1.22        2.7.1.207       3.2.1.23        
3.2.1.108       3.2.1.140
Brite
Compounds with biological roles [BR:br08001]
 Carbohydrates
  Oligosaccharides
   Disaccharides
    C00243  Lactose; Milk sugar
Drugs listed in the Japanese Pharmacopoeia [BR:br08311]
 Chemicals
  D00046  Anhydrous lactose
Other DBs
CAS: 63-42-3
PubChem: 3542
ChEBI: 17716
KNApSAcK: C00001136
PDB-CCD: LAT[PDBj] LBT[PDBj]
3DMET: B01199
NIKKAJI: J353.435I
LinkDB
KCF data

ATOM        23
            1   C1y C    39.1122  -21.3617
            2   C1y C    39.1122  -19.9619
            3   O2a O    37.8991  -22.0557
            4   C1y C    40.3136  -22.0557
            5   O2x O    40.3136  -19.2561
            6   C1b C    37.8991  -19.2561
            7   C1y C    36.6801  -22.7616
            8   C1y C    41.5327  -21.3617
            9   O1a O    40.3136  -23.4556
            10  C1y C    41.5327  -19.9619
            11  O1a O    36.8316  -20.1661
            12  O2x O    35.4611  -22.0557
            13  C1y C    36.6801  -24.1613
            14  O1a O    42.7399  -22.0557
            15  O1a O    42.7399  -19.2561
            16  C1y C    34.2537  -22.7616
            17  C1y C    35.4611  -24.8612
            18  O1a O    37.8932  -24.8612
            19  C1y C    34.2537  -24.1613
            20  C1b C    33.0463  -22.0557
            21  O1a O    35.4668  -26.2610
            22  O1a O    33.0463  -24.8612
            23  O1a O    31.9790  -22.9656
BOND        24
            1     1   2 1
            2     1   3 1 #Down
            3     1   4 1
            4     2   5 1
            5     2   6 1 #Up
            6     7   3 1 #Up
            7     4   8 1
            8     4   9 1 #Up
            9     5  10 1
            10    6  11 1
            11    7  12 1
            12    7  13 1
            13    8  14 1 #Down
            14   10  15 1 #Either
            15   12  16 1
            16   13  17 1
            17   13  18 1 #Down
            18   16  19 1
            19   16  20 1 #Up
            20   17  21 1 #Up
            21   19  22 1 #Up
            22   20  23 1
            23    8  10 1
            24   17  19 1

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