Structure of PDB 3f7b Chain B Binding Site BS02

Receptor Information
>3f7b Chain B (length=247) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
WCYEVQAESPCLVPVKWGGNCQKDRQSPINIVTTKAKVDKKLGRFFFSGY
DKKQTWTVQNNGHSVMMLLENKASISGGGLPAPYQAKQLHLHWSDLPYKG
SEHSLDGEHFAMEMHIVHEKEPEDEIAVLAFLVEAGTQVNEGFQPLVEAL
SNIPKPEMSTTMAESSLLDLLPKEEKLRHYFRYLGSLTTPTCDEKVVWTV
FREPIQLHREQILAFSQKLYYDKEQTVSMKDNVRPLQQLGQRTVIKS
Ligand information
Ligand IDAG5
InChIInChI=1S/C20H19N3O3S2/c21-28(25,26)17-13-18(19(24)22-12-11-15-7-3-1-4-8-15)20(23-14-17)27-16-9-5-2-6-10-16/h1-10,13-14H,11-12H2,(H,22,24)(H2,21,25,26)
InChIKeyMGWPMEUXUFQQAQ-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341N[S](=O)(=O)c1cnc(Sc2ccccc2)c(c1)C(=O)NCCc3ccccc3
OpenEye OEToolkits 1.5.0c1ccc(cc1)CCNC(=O)c2cc(cnc2Sc3ccccc3)S(=O)(=O)N
ACDLabs 10.04O=S(=O)(c2cnc(Sc1ccccc1)c(c2)C(=O)NCCc3ccccc3)N
FormulaC20 H19 N3 O3 S2
NameN-(2-phenylethyl)-2-(phenylsulfanyl)-5-sulfamoylpyridine-3-carboxamide
ChEMBLCHEMBL1094898
DrugBank
ZINCZINC000039716028
PDB chain3f7b Chain B Residue 303 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB3f7b Thioether benzenesulfonamide inhibitors of carbonic anhydrases II and IV: structure-based drug design, synthesis, and biological evaluation.
Resolution2.05 Å
Binding residue
(original residue number in PDB)		N62 H64 S65 Q92 H94 H96 H119 V121 L198 T199 T200
Binding residue
(residue number reindexed from 1)		N61 H63 S64 Q88 H90 H92 H115 V117 L187 T188 T189
Annotation score1
Binding affinityMOAD: ic50=64nM
BindingDB: IC50=64nM
Enzymatic activity
Catalytic site (original residue number in PDB) H64 H94 H96 E106 H119 T199
Catalytic site (residue number reindexed from 1) H63 H90 H92 E102 H115 T188
Enzyme Commision number 4.2.1.1: carbonic anhydrase.
Gene Ontology
Molecular Function
GO:0004089 carbonate dehydratase activity
GO:0005515 protein binding
GO:0008270 zinc ion binding
GO:0016829 lyase activity
GO:0046872 metal ion binding
Biological Process
GO:0006730 one-carbon metabolic process
GO:0015701 bicarbonate transport
Cellular Component
GO:0005791 rough endoplasmic reticulum
GO:0005793 endoplasmic reticulum-Golgi intermediate compartment
GO:0005794 Golgi apparatus
GO:0005802 trans-Golgi network
GO:0005886 plasma membrane
GO:0009897 external side of plasma membrane
GO:0009986 cell surface
GO:0016020 membrane
GO:0016323 basolateral plasma membrane
GO:0016324 apical plasma membrane
GO:0030658 transport vesicle membrane
GO:0030667 secretory granule membrane
GO:0031526 brush border membrane
GO:0048471 perinuclear region of cytoplasm
GO:0070062 extracellular exosome
GO:0098552 side of membrane

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:3f7b, PDBe:3f7b, PDBj:3f7b
PDBsum3f7b
PubMed20363633
UniProtP22748|CAH4_HUMAN Carbonic anhydrase 4 (Gene Name=CA4)

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