Structure of PDB 1owb Chain A Binding Site BS01

Receptor Information
>1owb Chain A (length=426) Species: 562 (Escherichia coli) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
ADTKAKLTLNGDTAVELDVLKGTLGQDVIDIRTLGSKGVFTFDPGFTSTA
SCESKITFIDGDEGILLHRGFPIDQLATDSNYLEVCYILLNGEKPTQEQY
DEFKTTVTLHTMIHEQITRLFHAFRRDSHPMAVMCGITGALAAFYHDSLD
VNNPRHREIAAFRLLSKMPTMAAMCYKYSIGQPFVYPRNDLSYAGNFLNM
MFSTPCEPYEVNPILERAMDRILILHADHEQNASTSTVRTAGSSGANPFA
CIAAGIASLWGPAHGGANEAALKMLEEISSVKHIPEFFRRAKDKNDSFRL
MGFGHRVYKNYDPRATVMRETCHEVLKELGTKDDLLEVAMELENIALNDP
YFIEKKLYPNVDFYSGIILKAMGIPSSMFTVIFAMARTVGWIAHWSEMHS
DGMKIARPRQLYTGYEKRDFKSDIKR
Ligand information
Ligand IDNAD
InChIInChI=1S/C21H27N7O14P2/c22-17-12-19(25-7-24-17)28(8-26-12)21-16(32)14(30)11(41-21)6-39-44(36,37)42-43(34,35)38-5-10-13(29)15(31)20(40-10)27-3-1-2-9(4-27)18(23)33/h1-4,7-8,10-11,13-16,20-21,29-32H,5-6H2,(H5-,22,23,24,25,33,34,35,36,37)/t10-,11-,13-,14-,15-,16-,20-,21-/m1/s1
InChIKeyBAWFJGJZGIEFAR-NNYOXOHSSA-N
SMILES
SoftwareSMILES
CACTVS 3.341NC(=O)c1ccc[n+](c1)[C@@H]2O[C@H](CO[P]([O-])(=O)O[P@](O)(=O)OC[C@H]3O[C@H]([C@H](O)[C@@H]3O)n4cnc5c(N)ncnc45)[C@@H](O)[C@H]2O
OpenEye OEToolkits 1.5.0c1cc(c[n+](c1)C2C(C(C(O2)COP(=O)([O-])OP(=O)(O)OCC3C(C(C(O3)n4cnc5c4ncnc5N)O)O)O)O)C(=O)N
CACTVS 3.341NC(=O)c1ccc[n+](c1)[CH]2O[CH](CO[P]([O-])(=O)O[P](O)(=O)OC[CH]3O[CH]([CH](O)[CH]3O)n4cnc5c(N)ncnc45)[CH](O)[CH]2O
OpenEye OEToolkits 1.5.0c1cc(c[n+](c1)[C@H]2[C@@H]([C@@H]([C@H](O2)CO[P@@](=O)([O-])O[P@@](=O)(O)OC[C@@H]3[C@H]([C@H]([C@@H](O3)n4cnc5c4ncnc5N)O)O)O)O)C(=O)N
FormulaC21 H27 N7 O14 P2
NameNICOTINAMIDE-ADENINE-DINUCLEOTIDE
ChEMBLCHEMBL1234613
DrugBankDB14128
ZINC
PDB chain1owb Chain A Residue 3000 [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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PDB1owb Probing the roles of key residues in the unique regulatory NADH binding site of type II citrate synthase of Escherichia coli.
Resolution2.2 Å
Binding residue
(original residue number in PDB)		T108 L109 H110 T111 M112 H114 Y145 I159 F162 R163 K167 N189
Binding residue
(residue number reindexed from 1)		T108 L109 H110 T111 M112 H114 Y145 I159 F162 R163 K167 N189
Annotation score2
Binding affinityMOAD: Kd=1.16uM
Enzymatic activity
Catalytic site (original residue number in PDB) D362
Catalytic site (residue number reindexed from 1) D362
Enzyme Commision number 2.3.3.16: citrate synthase (unknown stereospecificity).
Gene Ontology
Molecular Function
GO:0004108 citrate (Si)-synthase activity
GO:0005515 protein binding
GO:0016740 transferase activity
GO:0036440 citrate synthase activity
GO:0042802 identical protein binding
GO:0046912 acyltransferase activity, acyl groups converted into alkyl on transfer
GO:0070404 NADH binding
Biological Process
GO:0006099 tricarboxylic acid cycle
GO:0034214 protein hexamerization
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:1owb, PDBe:1owb, PDBj:1owb
PDBsum1owb
PubMed12824188
UniProtP0ABH7|CISY_ECOLI Citrate synthase (Gene Name=gltA)

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