Structure of PDB 1csi Chain A Binding Site BS02

Receptor Information
>1csi Chain A (length=435) Species: 9031 (Gallus gallus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
STNLKDVLASLIPKEQARIKTFRQQHGNTAVGQITVDMSYGGMRGMKGLI
YETSVLDPDEGIRFRGFSIPECQKLLPKAGGGEEPLPEGLFWLLVTGQIP
TPEQVSWVSKEWAKRAALPSHVVTMLDNFPTNLHPMSQLSAAITALNSES
NFARAYAEGINRTKYWEFVYEDAMDLIAKLPCVAAKIYRNLYRAGSSIGA
IDSKLDWSHNFTNMLGYTDPQFTELMRLYLTIHSDHEGGNVSAHTSHLVG
SALSDPYLSFAAAMNGLAGPLHGLANQEVLLWLSQLQKDLGADASDEKLR
DYIWNTLNSGRVVPGYGHAVLRKTDPRYTCQREFALKHLPSDPMFKLVAQ
LYKIVPNVLLEQGKAKNPWPNVDAHSGVLLQYYGMTEMNYYTVLFGVSRA
LGVLAQLIWSRALGFPLERPKSMSTAGLEKLSAGG
Ligand information
Ligand IDCMX
InChIInChI=1S/C23H38N7O18P3/c1-23(2,18(35)21(36)26-7-5-13(31)25-6-3-4-14(32)33)9-45-51(42,43)48-50(40,41)44-8-12-17(47-49(37,38)39)16(34)22(46-12)30-11-29-15-19(24)27-10-28-20(15)30/h10-12,16-18,22,34-35H,3-9H2,1-2H3,(H,25,31)(H,26,36)(H,32,33)(H,40,41)(H,42,43)(H2,24,27,28)(H2,37,38,39)/t12-,16-,17-,18+,22-/m1/s1
InChIKeySKRDARVCOPFVCP-GRFIIANRSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0CC(C)(COP(=O)(O)OP(=O)(O)OCC1C(C(C(O1)n2cnc3c2ncnc3N)O)OP(=O)(O)O)C(C(=O)NCCC(=O)NCCCC(=O)O)O
OpenEye OEToolkits 1.5.0CC(C)(CO[P@](=O)(O)O[P@@](=O)(O)OC[C@@H]1[C@H]([C@H]([C@@H](O1)n2cnc3c2ncnc3N)O)OP(=O)(O)O)[C@H](C(=O)NCCC(=O)NCCCC(=O)O)O
ACDLabs 10.04O=C(O)CCCNC(=O)CCNC(=O)C(O)C(C)(C)COP(=O)(O)OP(=O)(O)OCC3OC(n2cnc1c(ncnc12)N)C(O)C3OP(=O)(O)O
CACTVS 3.341CC(C)(CO[P@@](O)(=O)O[P@](O)(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1O[P](O)(O)=O)n2cnc3c(N)ncnc23)[C@@H](O)C(=O)NCCC(=O)NCCCC(O)=O
CACTVS 3.341CC(C)(CO[P](O)(=O)O[P](O)(=O)OC[CH]1O[CH]([CH](O)[CH]1O[P](O)(O)=O)n2cnc3c(N)ncnc23)[CH](O)C(=O)NCCC(=O)NCCCC(O)=O
FormulaC23 H38 N7 O18 P3
NameCARBOXYMETHYLDETHIA COENZYME *A
ChEMBL
DrugBank
ZINCZINC000098208748
PDB chain1csi Chain A Residue 700 [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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PDB1csi A very short hydrogen bond provides only moderate stabilization of an enzyme-inhibitor complex of citrate synthase.
Resolution1.7 Å
Binding residue
(original residue number in PDB)		R46 L273 H274 A277 V314 V315 G317 Y318 G319 H320 A321 K366 A367 K368 N373 D375
Binding residue
(residue number reindexed from 1)		R44 L271 H272 A275 V312 V313 G315 Y316 G317 H318 A319 K364 A365 K366 N371 D373
Annotation score3
Binding affinityMOAD: Ki=1.6nM
PDBbind-CN: -logKd/Ki=8.80,Ki=1.6nM
Enzymatic activity
Catalytic site (original residue number in PDB) S244 H274 H320 R329 D375
Catalytic site (residue number reindexed from 1) S242 H272 H318 R327 D373
Enzyme Commision number 2.3.3.1: citrate (Si)-synthase.
Gene Ontology
Molecular Function
GO:0004108 citrate (Si)-synthase activity
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
Biological Process
GO:0005975 carbohydrate metabolic process
GO:0006099 tricarboxylic acid cycle
GO:0006101 citrate metabolic process
Cellular Component
GO:0005739 mitochondrion
GO:0005759 mitochondrial matrix

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1csi, PDBe:1csi, PDBj:1csi
PDBsum1csi
PubMed8011640
UniProtP23007|CISY_CHICK Citrate synthase, mitochondrial (Gene Name=CS)

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