Structure of PDB 6qph Chain B Binding Site BS21

Receptor Information
>6qph Chain B (length=734) Species: 3046 (Dunaliella salina) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
ATKLFPKFSQGLAQDPSTRRIWYGLATAHDFESHDGMTEENLYQKIFASH
FGQLAIIFLWTSGNLFHVAWQGNFEQWVTDPIHVRPIAHAIWDPHFGQPA
VEAFTRGGASGPVNIATSGVYQWWYTIGLRSNQELYVSSVFLALVSAVFL
FAGWLHLQPNFQPSLSWFKDAESRLNHHLAGLFGVSSLAWTGHLVHVAIP
ESRGQHVGWDNFLSVLPHPQGLTPFWSGNWAAYAQNPDTASHAFGTADGS
GTAILTFLGGFHPQTQSLWLSDMAHHHLAIAVLFIVAGHMYRTNFGIGHR
LEAILEAHTPPAGGLGAGHKGLFHTVNNSLHFQLGLALASVGTITSLVAQ
HMYSLPPYAYLAVDFTTQASLYTHHQYIAGFIMCGAFAHGAIFFIRDYDP
EQNKGNVLARVLDHKEAIISHLSWVSLFLGFHTLGLYVHNDVVQAFGTPE
KQILIEPVFAQWIQAAQGKSLYGFDLLLASSSSPAYSAGQSLWLPGWLEA
INNNQNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDK
KDFGYSFPCDGPGRGGTCDISAYDAFYLAVFWMLNTIGWVTFYWHWKHLT
LWQGNVSQFDESSTYLMGWLRDYLWLNSSQLINGYNPFGMNSLSVWAWTF
LFGHLVYATGFMFLISWRGYWQELIETLVWAHEKTPLANLVYWKDKPVAL
SIVQARLVGLAHFSVGYIFTYAAFLIASTAGRFG
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 chain6qph Chain B Residue 1214 [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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PDB6qph Structure of a minimal photosystem I from the green alga Dunaliella salina.
Resolution3.4 Å
Binding residue
(original residue number in PDB)		F258 H276 H277 A280 I281 H352 L356 W494
Binding residue
(residue number reindexed from 1)		F257 H275 H276 A279 I280 H351 L355 W493
Annotation score1
Enzymatic activity
Enzyme Commision number 1.97.1.12: photosystem I.
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0009055 electron transfer activity
GO:0016168 chlorophyll binding
GO:0016491 oxidoreductase activity
GO:0046872 metal ion binding
GO:0051539 4 iron, 4 sulfur cluster binding
Biological Process
GO:0015979 photosynthesis
Cellular Component
GO:0009507 chloroplast
GO:0009522 photosystem I
GO:0009535 chloroplast thylakoid membrane
GO:0009579 thylakoid
GO:0016020 membrane

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:6qph, PDBe:6qph, PDBj:6qph
PDBsum6qph
PubMed32123351
UniProtD0FXZ0

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