Table 2

Summary of gold and silver standard families

Superfamily
Family
EC number*
Number of sequences (gold/silver)
Number of structures

Amidohydrolase
Aryldialkylphosphatase
3.1.8.1
2/3
0

Phosphotriesterase
3.1.8.1
7/8
12

Membrane dipeptidase
3.4.13.19
1/1
2

N-acetylglucosamine-6-phosphate deacetylase
3.5.1.25
1/54
2

Urease
3.5.1.5
100/107
35

N-acyl-D-amino-acid deacylase
3.5.1.81
3/11
8

D-hydantoinase
3.5.2.2
10/25
4

L-hydantoinase
3.5.2.2
3/3
1

Dihydroorotase1
3.5.2.3
3/79
0

Dihydroorotase2
3.5.2.3
13/13
0

Dihydroorotase3
3.5.2.3
7/43
1

Allantoinase
3.5.2.5
4/7
0

Imidazolonepropionase
3.5.2.7
1/29
0

Cytosine deaminase
3.5.4.1
9/24
7

Adenine deaminase
3.5.4.2
1/24
0

Guanine deaminase
3.5.4.3
11/34
0

Adenosine deaminase
3.5.4.4
10/20
17

AMP deaminase
3.5.4.6
28/31
0

Hydroxydechloroatrazine ethylaminohydrolase
3.5.99.3
1/2
0

N-isopropylammelide isopropylaminohydrolase
3.5.99.4
1/1
0

1-Aminocyclopropane-1-carboxylate deaminase
3.5.99.7
1/1
0

Atrazine chlorohydrolase
3.8.1.8
1/1
0

Glucuronate isomerase
5.3.1.12
1/2
1

Ammelide aminohydrolase
NA
2/2
0

Isoaspartyl dipeptidase
NA
5/5
5

Melamine deaminase
NA
1/1
0

N-acetylgalactosamine-6-phosphate deacetylase
NA
3/5
0

S-triazine hydrolase
NA
1/1
0

TrzN
NA
1/1
0





Crotonase
Histone acetyltransferase
2.3.1.48
11/12
0

3-Hydroxyisobutyryl-CoA hydrolase
3.1.2.4
2/70
0

4-Chlorobenzoate dehalogenase
3.8.1.7
1/7
2

Methylmalonyl-CoA decarboxylase
4.1.1.41
1/6
2

Cyclohexa-1,5-dienecarbonyl-CoA hydratase
4.2.1.100
1/3
0

Enoyl-CoA hydratase
4.2.1.17
54/293
7

Methylglutaconyl-CoA hydratase
4.2.1.18
2/5
1

Methylglutaconyl-CoA hydratase 2
4.2.1.18
2/11
0

Dodecenoyl-CoA delta-isomerase (mitochondrial)
5.3.3.8
2/13
1

Dodecenoyl-CoA delta-isomerase (peroxisomal)
5.3.3.8
1/3
4

Cyclohex-1-enecarboxyl-CoA hydratase
NA
1/2
0

1,4-Dihydroxy-2-napthoyl-CoA synthase
NA
2/56
4

2-Ketocyclohexanecarboxyl-CoA hydrolase
NA
1/1
0

Crotonobetainyl-CoA hydratase
NA
2/15
0

Delta(3,5)-delta(2,4)-dienoyl-CoA isomerase
NA
3/24
1

Feruloyl-CoA hydratase/lyase
NA
5/18
0





Enolase
Enolase
4.2.1.11
215/375
20

Glucarate dehydratase
4.2.1.40
26/31
7

Galactonate dehydratase
4.2.1.6
5/27
0

Methylaspartate ammonia-lyase
4.3.1.2
5/8
4

Mandelate racemase
5.1.2.2
2/3
6

Muconate cycloisomerase
5.5.1.1
14/26
5

Chloromuconate cycloisomerase
5.5.1.7
10/15
3

Dipeptide epimerase
NA
2/57
3

Ortho-succinylbenzoate synthase
NA
6/75
4





Haloacid dehalogenase
Polynucleotide 5'-hydroxyl-kinase carboxy-terminal phosphatase
2.7.1.78
1/1
1

Trehalose-phosphatase
3.1.3.12
1/2
0

Histidinol-phosphatase
3.1.3.15
1/2
0

Phosphoglycolate phosphatase
3.1.3.18
1/14
0

Phosphoglycolate phosphatase 2
3.1.3.18
1/10
0

Sucrose-phosphatase
3.1.3.24
5/13
0

Phosphoserine phosphatase
3.1.3.3
2/56
9

Deoxy-D-mannose-octulosonate 8-phosphate phosphatase
3.1.3.45
2/16
2

5'-Nucleotidase
3.1.3.5
1/1
3

2-Deoxyglucose-6-phosphatase
3.1.3.68
1/2
0

Mannosyl-3-phosphoglycerate phosphatase
3.1.3.70
1/3
0

Phosphonoacetaldehyde hydrolase
3.11.1.1
3/9
6

P-type atpase
3.6.3.-
91/735
8

2-Haloacid dehalogenase
3.8.1.2
7/20
8

Beta-phosphoglucomutase
5.4.2.6
1/21
3

Pyridoxal phosphatase
NA
1/1
0

Enolase-phosphatase
NA
1/20
0

Epoxide hydrolase N-terminal phosphatase
NA
2/2
6

Glycerol-3-phosphate phosphatase
NA
1/3
0

mdp-1
NA
1/2
2





Vicinal oxygen chelate
3,4-Dihydroxyphenylacetate 2,3-dioxygenase
1.13.11.15
4/9
6

Catechol 2,3-dioxygenase
1.13.11.2
32/53
0

4-Hydroxyphenylpyruvate dioxygenase
1.13.11.27
26/69
7

2,3-Dihydroxybiphenyl dioxygenase
1.13.11.39
23/26
16

4-Hydroxymandelate synthase
1.13.11.46
1/6
0

Fosfomycin resistance protein FosA
2.5.1.18
2/4
6

Glyoxalase I
4.4.1.5
12/58
9

Methylmalonyl-CoA epimerase
5.1.99.1
5/9
2

3-Methylcatechol 2,3-dioxygenase
NA
7/10
1

2,6-Dichlorohydroquinone dioxygenase
NA
3/3
0

2,3-Dihydroxy-p-cumate-3,4-dioxygenase
NA
2/3
0

2,2',3-Trihydroxybiphenyl dioxygenase
NA
4/4
0

1,2-Dihydroxynaphthalene dioxygenase
NA
6/17
0

3-Isopropylcatechol-2,3-dioxygenase
NA
2/3
0

2,4,5-Trihydroxytoluene oxygenase
NA
2/3
0

Fosfomycin resistance protein FosB
NA
1/9
0

Fosfomycin resistance protein FosX
NA
2/4
1

*Enzyme Commission Number for the primary reaction catalyzed by the family. Some families catalyze a characterized reaction for which no EC number has yet been assigned. The EC numbers for these families are designated as NA (not available).

Brown et al. Genome Biology 2006 7:R8   doi:10.1186/gb-2006-7-1-r8