Structure of PDB 3t5u Chain A

Receptor sequence
>3t5uA (length=256) Species: 9606 (Homo sapiens) [Search protein sequence]
HWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDPSLKPLSVSYDQ
ATSLRILNNGHAFNVEFDDSQDKAVLKGGPLDGTYRLIQFHFHWGSLDGQ
GSEHTVDKKKYAAELHLVHWNTKYGDFGKAVQQPDGLAVLGIFLKVGSAK
PGLQKVVDVLDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPLL
ECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELMVDNWRPAQPLKNR
QIKASF
3D structure
PDB3t5u Carbonic anhydrase inhibitors: X-ray crystallographic studies for the binding of N-substituted benzenesulfonamides to human isoform II.
ChainA
Resolution1.75 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) H64 H94 H96 E106 H119 T199
Catalytic site (residue number reindexed from 1) H61 H91 H93 E103 H116 T195
Enzyme Commision number 4.2.1.1: carbonic anhydrase.
4.2.1.69: cyanamide hydratase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 ZN A H94 H96 H119 F260 H91 H93 H116 F256
BS02 A09 A H94 H119 L198 T199 T200 H91 H116 L194 T195 T196 MOAD: Ki=5.47uM
PDBbind-CN: -logKd/Ki=7.59,Ki=0.026uM
BindingDB: Ki=26nM
BS03 A09 A W5 H10 N11 H15 W16 D19 W2 H7 N8 H12 W13 D16 MOAD: Ki=5.47uM
PDBbind-CN: -logKd/Ki=7.59,Ki=0.026uM
BindingDB: Ki=26nM
BS04 A09 A Y7 D243 W245 Y4 D239 W241 MOAD: Ki=5.47uM
PDBbind-CN: -logKd/Ki=7.59,Ki=0.026uM
BindingDB: Ki=26nM
BS05 A09 A E69 I91 Q92 E66 I88 Q89 MOAD: Ki=5.47uM
PDBbind-CN: -logKd/Ki=7.59,Ki=0.026uM
BindingDB: Ki=26nM
Gene Ontology
Molecular Function
GO:0004064 arylesterase activity
GO:0004089 carbonate dehydratase activity
GO:0005515 protein binding
GO:0008270 zinc ion binding
GO:0016829 lyase activity
GO:0018820 cyanamide hydratase activity
GO:0046872 metal ion binding
Biological Process
GO:0002009 morphogenesis of an epithelium
GO:0006730 one-carbon metabolic process
GO:0015670 carbon dioxide transport
GO:0032230 positive regulation of synaptic transmission, GABAergic
GO:0032849 positive regulation of cellular pH reduction
GO:0038166 angiotensin-activated signaling pathway
GO:0044070 regulation of monoatomic anion transport
GO:0046903 secretion
GO:0051453 regulation of intracellular pH
GO:0070050 neuron cellular homeostasis
GO:2001150 positive regulation of dipeptide transmembrane transport
GO:2001225 regulation of chloride transport
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0005886 plasma membrane
GO:0043209 myelin sheath
GO:0045177 apical part of cell
GO:0070062 extracellular exosome

View graph for
Molecular Function
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Biological Process
View graph for
Cellular Component
External links
PDB RCSB:3t5u, PDBe:3t5u, PDBj:3t5u
PDBsum3t5u
PubMed21952494
UniProtP00918|CAH2_HUMAN Carbonic anhydrase 2 (Gene Name=CA2)

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