Structure of PDB 4ixr Chain C Binding Site BS01

Receptor Information
>4ixr Chain C (length=447) Species: 146786 (Thermosynechococcus vestitus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
DQESSGFAWWAGNARLINLSGKLLGAHVAHAGLIVFWAGAMTLFELAHFI
PEKPMYEQGLILIPHIATLGWGVGPGGEVVDTFPFFVVGVVHLISSAVLG
FGGVYHAIRGPETLEEYSSFFGYDWKDKNKMTTILGFHLIVLGIGALLLV
AKAMFFGGLYDTWAPGGGDVRVITNPTLDPRVIFGYLLKSPFGGEGWIVS
VNNLEDVVGGHIWIGLICIAGGIWHILTTPFGWARRAFIWSGEAYLSYSL
GALSMMGFIATCFVWFNNTVYPSEFYGPTGPEASQAQAMTFLIRDQKLGA
NVGSAQGPTGLGKYLMRSPTGEIIFGGETMRFWDFRGPWLEPLRGPNGLD
LNKIKNDIQPWQERRAAEYMTHAPLGSLNSVGGVATEINSVNFVSPRSWL
ATSHFVLAFFFLVGHLWHAGRARAAAAGFEKGIDRESEPVLSMPSLD
Ligand information
Ligand IDCLA
InChIInChI=1S/C55H73N4O5.Mg/c1-13-39-35(8)42-28-44-37(10)41(24-25-48(60)64-27-26-34(7)23-17-22-33(6)21-16-20-32(5)19-15-18-31(3)4)52(58-44)50-51(55(62)63-12)54(61)49-38(11)45(59-53(49)50)30-47-40(14-2)36(9)43(57-47)29-46(39)56-42;/h13,26,28-33,37,41,51H,1,14-25,27H2,2-12H3,(H-,56,57,58,59,61);/q-1;+2/p-1/b34-26+;/t32-,33-,37+,41+,51-;/m1./s1
InChIKeyATNHDLDRLWWWCB-AENOIHSZSA-M
SMILES
SoftwareSMILES
OpenEye OEToolkits 2.0.7CCC1=C(C2=Cc3c(c(c4n3[Mg]56[N]2=C1C=C7N5C8=C(C(C(=O)C8=C7C)C(=O)OC)C9=[N]6C(=C4)C(C9CCC(=O)OCC=C(C)CCCC(C)CCCC(C)CCCC(C)C)C)C)C=C)C
CACTVS 3.385CCC1=C(C)C2=Cc3n4[Mg][N]5C(=CC1=N2)C(=C6C(=O)[CH](C(=O)OC)C(=C56)C7=NC(=Cc4c(C)c3C=C)[CH](C)[CH]7CCC(=O)OCC=C(C)CCC[CH](C)CCC[CH](C)CCCC(C)C)C
ACDLabs 12.01O=C(OC)C1C(=O)C2=C(C)C3=CC=4C(CC)=C(C)C5=Cc6c(C=C)c(C)c7C=C8C(C)C(CCC(=O)OC\C=C(/C)CCCC(C)CCCC(C)CCCC(C)C)C=9C1=C2N3[Mg](n76)(N5=4)N8=9
OpenEye OEToolkits 2.0.7CCC1=C(C2=Cc3c(c(c4n3[Mg]56[N]2=C1C=C7N5C8=C([C@H](C(=O)C8=C7C)C(=O)OC)C9=[N]6C(=C4)[C@H]([C@@H]9CCC(=O)OC/C=C(\C)/CCC[C@H](C)CCC[C@H](C)CCCC(C)C)C)C)C=C)C
CACTVS 3.385CCC1=C(C)C2=Cc3n4[Mg][N@@]5C(=CC1=N2)C(=C6C(=O)[C@H](C(=O)OC)C(=C56)C7=NC(=Cc4c(C)c3C=C)[C@@H](C)[C@@H]7CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)C
FormulaC55 H72 Mg N4 O5
NameCHLOROPHYLL A
ChEMBL
DrugBankDB02133
ZINC
PDB chain4ixr Chain C Residue 501 [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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PDB4ixr Simultaneous femtosecond X-ray spectroscopy and diffraction of photosystem II at room temperature.
Resolution5.9 Å
Binding residue
(original residue number in PDB)		L168 G171 A172 L175 L185 H237 I240 M282 I285 F289 V296 Y297
Binding residue
(residue number reindexed from 1)		L142 G145 A146 L149 L159 H211 I214 M256 I259 F263 V270 Y271
Annotation score4
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0016168 chlorophyll binding
GO:0045156 electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity
GO:0046872 metal ion binding
Biological Process
GO:0009767 photosynthetic electron transport chain
GO:0009772 photosynthetic electron transport in photosystem II
GO:0015979 photosynthesis
GO:0019684 photosynthesis, light reaction
Cellular Component
GO:0005737 cytoplasm
GO:0009521 photosystem
GO:0009523 photosystem II
GO:0009579 thylakoid
GO:0016020 membrane
GO:0031676 plasma membrane-derived thylakoid membrane
GO:0042651 thylakoid membrane

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:4ixr, PDBe:4ixr, PDBj:4ixr
PDBsum4ixr
PubMed23413188
UniProtQ8DIF8|PSBC_THEVB Photosystem II CP43 reaction center protein (Gene Name=psbC)

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