Structure of PDB 3ern Chain A Binding Site BS02

Receptor Information
>3ern Chain A (length=157) Species: 83333 (Escherichia coli K-12) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
EMRIGHGFDVHAFGGEGPIIIGGVRIPYEKGLLAHSDGDVALHALTDALL
GAAALGDIGKLFPDTDPAFKGADSRELLREAWRRIQAKGYTLGNVDVTII
AQAPKMLPHIPQMRVFIAEDLGCHMDDVNVKATTTEKLGFTGRGEGIACE
AVALLIK
Ligand information
Ligand IDCAR
InChIInChI=1S/C9H14N3O8P/c10-5-1-2-12(9(15)11-5)8-7(14)6(13)4(20-8)3-19-21(16,17)18/h1-2,4,6-8,13-14H,3H2,(H2,10,11,15)(H2,16,17,18)/t4-,6-,7+,8-/m1/s1
InChIKeyIERHLVCPSMICTF-CCXZUQQUSA-N
SMILES
SoftwareSMILES
CACTVS 3.341NC1=NC(=O)N(C=C1)[CH]2O[CH](CO[P](O)(O)=O)[CH](O)[CH]2O
OpenEye OEToolkits 1.5.0C1=CN(C(=O)N=C1N)C2C(C(C(O2)COP(=O)(O)O)O)O
CACTVS 3.341NC1=NC(=O)N(C=C1)[C@@H]2O[C@H](CO[P](O)(O)=O)[C@@H](O)[C@@H]2O
ACDLabs 10.04O=C1N=C(N)C=CN1C2OC(C(O)C2O)COP(=O)(O)O
OpenEye OEToolkits 1.5.0C1=CN(C(=O)N=C1N)[C@H]2[C@H]([C@@H]([C@H](O2)COP(=O)(O)O)O)O
FormulaC9 H14 N3 O8 P
NameCYTOSINE ARABINOSE-5'-PHOSPHATE
ChEMBLCHEMBL596186
DrugBankDB02456
ZINCZINC000001785780
PDB chain3ern Chain A Residue 900 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB3ern A structure-based approach to ligand discovery for 2C-methyl-D-erythritol-2,4-cyclodiphosphate synthase: a target for antimicrobial therapy
Resolution2.1 Å
Binding residue
(original residue number in PDB)
A100 K104 M105 L106 A131 T132 T133
Binding residue
(residue number reindexed from 1)
A101 K105 M106 L107 A132 T133 T134
Annotation score3
Binding affinityMOAD: Kd=18.91mM
PDBbind-CN: -logKd/Ki=1.72,Kd=18.91mM
BindingDB: Kd=18910000nM
Enzymatic activity
Enzyme Commision number 4.6.1.12: 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase.
Gene Ontology
Molecular Function
GO:0005515 protein binding
GO:0008270 zinc ion binding
GO:0008685 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase activity
GO:0016829 lyase activity
GO:0030145 manganese ion binding
GO:0042802 identical protein binding
GO:0046872 metal ion binding
Biological Process
GO:0006744 ubiquinone biosynthetic process
GO:0008299 isoprenoid biosynthetic process
GO:0016114 terpenoid biosynthetic process
GO:0019288 isopentenyl diphosphate biosynthetic process, methylerythritol 4-phosphate pathway

View graph for
Molecular Function

View graph for
Biological Process
External links
PDB RCSB:3ern, PDBe:3ern, PDBj:3ern
PDBsum3ern
PubMed19320487
UniProtP62617|ISPF_ECOLI 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase (Gene Name=ispF)

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