1.- Oxidoreductases
2.- Transferases
3.- Hydrolases
4.- Lyases
4.1.-.-
4.1.1.-
4.1.1.1
4.1.1.3
4.1.1.7
4.1.1.8
4.1.1.15
4.1.1.17
4.1.1.18
4.1.1.19
4.1.1.20
4.1.1.21 *
4.1.1.23
4.1.1.28
4.1.1.31
4.1.1.32
4.1.1.33
4.1.1.36
4.1.1.39
4.1.1.43
4.1.1.45
4.1.1.48
4.1.1.49
4.1.1.50
4.1.1.64
4.1.1.71
4.1.1.76
4.1.1.83
4.1.1.85
4.1.2.-
4.1.3.-
4.1.99.-
4.2.-.-
4.3.-.-
4.4.-.-
4.5.-.-
4.6.-.-
4.99.-.-
5.- Isomerases
6.- Ligases
Unclassified Enzymes

Binding
Folding Proteins
Immunological Proteins
Mobility/Motility
Other
Toxins/Viral Proteins
Transcription/Translation
Transport
Cell Cycle
Signal Hormone
Structural

4.1.1.21

Families belonging to this class:

90% Homology Family
Leader: 3ETH
CRYSTAL STRUCTURE OF E. COLI PURK IN COMPLEX WITH MGATP
PDB id Binding data Representative ligand
3ETH   ATP
1B6S   ADP
3ETJ   ADP
90% Homology Family
Leader: 2NSJ
E. COLI PURE H45Q MUTANT COMPLEXED WITH CAIR
PDB id Binding data Representative ligand
2NSJ Kd = 16.3 uM C2R
1D7A   AIR
2ATE   NIA
2NSH   NIA
2NSL Kd = 20.9 uM C2R
90% Homology Family
Leader: 3K5I
CRYSTAL STRUCTURE OF N5-CARBOXYAMINOIMIDAZOLE
SYNTHASE FROM ASPERGILLUS CLAVATUS IN COMPLEX
WITH ADP AND 5- A MINOIMADAZOLE RIBONUCLEOTIDE
PDB id Binding data Representative ligand
3K5I   ADP
3K5H   ATP
90% Homology Family
Leader: 3RGG
CRYSTAL STRUCTURE OF TREPONEMA DENTICOLA PURE BOUND TO AIR
PDB id Binding data Representative ligand
3RGG   AIR