Structure of PDB 4rku Chain B Binding Site BS23

Receptor Information
>4rku Chain B (length=731) Species: 3888 (Pisum sativum) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
LRIPRFSQGLAQDPTTRRIWFGIATAHDFESHDDITEGRLYQNIFASHFG
QLAIIFLWTSGNLFHVAWQGNFEAWVQDPFHVRPIAHAIWDPHFGQPAVE
AFTRGGALGPVNNAYSGVYQWWYTIGLRTNEDLYTGAIFLLFLSFISLLA
GWLHLQPKWKPSVSWFKNAESRLNHHLSGLFGVSSLAWAGHLVHVAIPGS
RGEYVRWNNFLDVLPYPQGLGPLLTGQWNLYAQNPSSSNHLFGTTQGAGT
AILTILGGFHPQTQSLWLTDMAHHHLAIAFLFLIGGLMYRTNFGIGHSIK
YILEAHIPPGGRLGRGHKGLYDTINNSIHFQLGLALASLGVITSLVAQHM
YSLPAYAFIAQDFTTQAALYTHHQYIAGFIMTGAFAHGPIFFIRDYNPEQ
NADNVLARMLEHKEAIISHLSWASLFLGFHTLGLYVHNDVMLAFGTPEKQ
ILIEPIFAQWIQSAHGKTSYGFDVLLSSTNSPALNAGRSIWLPGWLNAIN
ENSNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDKKD
FGYSFPCDGPGRGGTCDISAWDDFYLAVFWMLNTIGWVTFYWHWKHITLW
QGNVSQFNESSTYLMGWLRDYLWLNSSQLINGYTPLVCNSLSVWAWMFLF
GHLVWATGFMFLISWRGYWQELIETLAWAHERTPLANLIRWRDKPVALSI
VQARLVGLVHFSVGYIFTYAAFLIASTSGKF
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 chain4rku Chain B Residue 1215 [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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PDB4rku Crystal structure of plant Photosystem I at 3.1 Angstrom resolution
Resolution3.0 Å
Binding residue
(original residue number in PDB)		F183 S186 W190 H276 H277 I280 L347 V348 M352 A357 Y358
Binding residue
(residue number reindexed from 1)		F181 S184 W188 H274 H275 I278 L345 V346 M350 A355 Y356
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:4rku, PDBe:4rku, PDBj:4rku
PDBsum4rku
PubMed
UniProtP05311|PSAB_PEA Photosystem I P700 chlorophyll a apoprotein A2 (Gene Name=psaB)

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