Structure of PDB 1nxg Chain A Binding Site BS01

Receptor Information
>1nxg 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
DEFKTTVTRHTMIHEQITRLFHAFRRDSHPMAVMCGITGALAAFYHDSLD
VNNPRHREIAAFRLLSKMPTMAAMCYKYSIGQPFVYPRNDLSYAGNFLNM
MFSTPCEPYEVNPILERAMDRILILHADHEQNASTSTVRTAGSSGANPFA
CIAAGIASLWGPAHGGANEAALKMLEEISSVKHIPEFFRRAKDKNDSFRL
MGFGHRVYKNYDPRATVMRETCHEVLKELGTKDDLLEVAMELENIALNDP
YFIEKKLYPNVDFYSGIILKAMGIPSSMFTVIAAMARTVGWIAHWSEMHS
DGMKIARPRQLYTGYEKRDFKSDIKR
Ligand information
Ligand IDNAI
InChIInChI=1S/C21H29N7O14P2/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/h1,3-4,7-8,10-11,13-16,20-21,29-32H,2,5-6H2,(H2,23,33)(H,34,35)(H,36,37)(H2,22,24,25)/t10-,11-,13-,14-,15-,16-,20-,21-/m1/s1
InChIKeyBOPGDPNILDQYTO-NNYOXOHSSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0c1nc(c2c(n1)n(cn2)C3C(C(C(O3)COP(=O)(O)OP(=O)(O)OCC4C(C(C(O4)N5C=CCC(=C5)C(=O)N)O)O)O)O)N
CACTVS 3.341NC(=O)C1=CN(C=CC1)[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 1.5.0c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=O)(O)O[P@@](=O)(O)OC[C@@H]4[C@H]([C@H]([C@@H](O4)N5C=CCC(=C5)C(=O)N)O)O)O)O)N
CACTVS 3.341NC(=O)C1=CN(C=CC1)[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
FormulaC21 H29 N7 O14 P2
Name1,4-DIHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE;
NADH
ChEMBLCHEMBL1234616
DrugBankDB00157
ZINCZINC000008215403
PDB chain1nxg Chain A Residue 3000 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1nxg Insights into the evolution of allosteric properties. The NADH binding site of hexameric type II citrate synthases.
Resolution2.5 Å
Binding residue
(original residue number in PDB)		T106 R109 H110 T111 M112 I113 H114 Y145 F162 R163 K167
Binding residue
(residue number reindexed from 1)		T106 R109 H110 T111 M112 I113 H114 Y145 F162 R163 K167
Annotation score2
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:1nxg, PDBe:1nxg, PDBj:1nxg
PDBsum1nxg
PubMed12741811
UniProtP0ABH7|CISY_ECOLI Citrate synthase (Gene Name=gltA)

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