Structure of PDB 7umh Chain H Binding Site BS25

Receptor Information
>7umh Chain H (length=739) Species: 1148 (Synechocystis sp. PCC 6803) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
KVSVDNNPVPTSFEKWGKPGHFDRTLARGPKTTTWIWNLHANAHDFDSQT
SDLEDVSRKIFSAHFGHLAVVFVWLSGMYFHGAKFSNYEGWLADPTHIKP
SAQVVWPIVGQGILNGDVGGGFHGIQITSGLFYLWRASGFTDSYQLYCTA
IGGLVMAALMLFAGWFHYHVKAPKLEWFQNVESMMNHHLAGLLGLGSLGW
AGHQIHVSMPINKLLDAGVAPKDIPLPHEFILEPSKMAELYPSFAQGLTP
FFTLNWGVYSDFLTFKGGLNPVTGGLWLSDTAHHHLAIAVLFIIAGHMYR
TNWGIGHSMKEILEAHKGPFTGEGHKGLYEILTTSWHAQLAINLALLGSL
TIIVAQHMYAMPPYPYQAIDYATQLSLFTHHMWIGGFLIVGAGAHGAIFM
VRDYDPAKNVNNLLDRMLRHRDAIISHLNWVCIFLGFHSFGLYIHNDTMR
ALGRPQDMFSDTAIQLQPIFAQWVQHLHTLAPGATAPNALATASYAFGGE
TIAVAGKVAMMPITLGTADFMVHHIHAFTIHVTALILLKGVLYARSSRLV
PDKANLGFRFPCDGPGRGGTCQVSGWDHVFLGLFWMYNSLSIVIFHFSWK
MQSDVWGTVSPDGSVTHVTLGNFAQSAITINGWLRDFLWAQAANVINSYG
SALSAYGIMFLAGHFVFAFSLMFLFSGRGYWQELIESIVWAHNKLNVAPA
IQPRALSIIQGRAVGVAHYLLGGIVTTWAFFLARSLSIG
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 chain7umh Chain H Residue 1117 [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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PDB7umh Energetic robustness to large scale structural fluctuations in a photosynthetic supercomplex.
Resolution2.6 Å
Binding residue
(original residue number in PDB)		L205 W212 Q216 H296 H297 I300 F304 L362 I365 V366 M370 P375 Y376
Binding residue
(residue number reindexed from 1)		L193 W200 Q204 H284 H285 I288 F292 L350 I353 V354 M358 P363 Y364
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:0005886 plasma membrane
GO:0009522 photosystem I
GO:0009579 thylakoid
GO:0016020 membrane
GO:0031676 plasma membrane-derived thylakoid membrane
GO:0042651 thylakoid membrane

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Molecular Function
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Biological Process
View graph for
Cellular Component
External links
PDB RCSB:7umh, PDBe:7umh, PDBj:7umh
PDBsum7umh
PubMed37532717
UniProtP29254|PSAA_SYNY3 Photosystem I P700 chlorophyll a apoprotein A1 (Gene Name=psaA)

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