Structure of PDB 4ixh Chain C Binding Site BS01

Receptor Information
>4ixh Chain C (length=336) Species: 5807 (Cryptosporidium parvum) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MGTKNIGKGLTFEDILLVPNYSEVLPREVSLETKLTKNVSLKIPLISSAM
DTVTEHLMAVGMARLGGIGIIHKNMDMESQVNEVLKVKNSGGLRVGAAIG
VNEIERAKLLVEAGVDVIVLDSAHGHSLNIIRTLKEIKSKMNIDVIVGNV
VTEEATKELIENGADGIKVGIGPGSICTTRIVAGVGVPQITAIEKCSSVA
SKFGIPIIADGGIRYSGDIGKALAVGASSVMIGSILAGTEESPGEKELIG
DTVYKYYRGMGSVGAMKSGMVPEGIEGRVKYKGEMEGVVYQLVGGLRSCM
GYLGSASIEELWKKSSYVEITTSGLRESHVHDVEIV
Ligand information
Ligand IDQ21
InChIInChI=1S/C25H19N3O3/c1-16(30-22-8-4-6-17-5-2-3-7-20(17)22)24(29)27-19-9-10-23-21(15-19)28-25(31-23)18-11-13-26-14-12-18/h2-16H,1H3,(H,27,29)/t16-/m0/s1
InChIKeyQCNXGTHMVPSAAC-INIZCTEOSA-N
SMILES
SoftwareSMILES
ACDLabs 12.01O=C(Nc1cc2nc(oc2cc1)c3ccncc3)C(Oc5c4ccccc4ccc5)C
OpenEye OEToolkits 1.7.6CC(C(=O)Nc1ccc2c(c1)nc(o2)c3ccncc3)Oc4cccc5c4cccc5
CACTVS 3.370C[CH](Oc1cccc2ccccc12)C(=O)Nc3ccc4oc(nc4c3)c5ccncc5
OpenEye OEToolkits 1.7.6C[C@@H](C(=O)Nc1ccc2c(c1)nc(o2)c3ccncc3)Oc4cccc5c4cccc5
CACTVS 3.370C[C@H](Oc1cccc2ccccc12)C(=O)Nc3ccc4oc(nc4c3)c5ccncc5
FormulaC25 H19 N3 O3
Name(2S)-2-(naphthalen-1-yloxy)-N-[2-(pyridin-4-yl)-1,3-benzoxazol-5-yl]propanamide
ChEMBLCHEMBL2348823
DrugBank
ZINCZINC000095601520
PDB chain4ixh Chain B Residue 503 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB4ixh Optimization of Benzoxazole-Based Inhibitors of Cryptosporidium parvum Inosine 5'-Monophosphate Dehydrogenase.
Resolution2.105 Å
Binding residue
(original residue number in PDB)		S22 V24 L25 P26 S354 Y358
Binding residue
(residue number reindexed from 1)		S22 V24 L25 P26 S298 Y302
Annotation score1
Binding affinityMOAD: ic50=6.1nM
BindingDB: IC50=8.0nM,Ki=13nM
Enzymatic activity
Enzyme Commision number 1.1.1.205: IMP dehydrogenase.
Gene Ontology
Molecular Function
GO:0003824 catalytic activity
GO:0003938 IMP dehydrogenase activity
GO:0016491 oxidoreductase activity
Biological Process
GO:0006164 purine nucleotide biosynthetic process

View graph for
Molecular Function
View graph for
Biological Process
External links
PDB RCSB:4ixh, PDBe:4ixh, PDBj:4ixh
PDBsum4ixh
PubMed23668331
UniProtQ8T6T2|IMDH_CRYPV Inosine-5'-monophosphate dehydrogenase (Gene Name=56k.02)

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