Structure of PDB 6m32 Chain a Binding Site BS03

Receptor Information

>6m32 Chain a (length=628) Species: 194439 (Chlorobaculum tepidum TLS)

TKWYQIFDTEKLDDEQVVGGHLALLGVLGFIMGIYYISGIQVFPWGAPGF
HDNWFYLTIKPRMVSLGIDTYSTKTADLEAAGARLLGWAAFHFLVGSVLI
FGGWRHWTHNLTNPFTGRCGNFRDFSAKSYKEALGPHAVYMSLLFLGWGI
VMWAILGFAPIPDFQTINSETFMSFVFAVIFFALGIYWWNNPPNAAIHLN
DDMKAAFSVHLTAIGYINIALGCIAFVAFQQPSFAPYYKELDKLVFYLYG
EPFNRVSFNFSGAKEFADFPAYAILPKSGEAFGMARVVTNLIVFNHIICG
VLYVFAGVYHGGQYLLKIQLNGMYNQIKSIWITKGRDQEVQVKILGTVMA
LCFATMLSVYAVIVWNTICELNIFGTNITMSFYWLKPLPIFQWMFADPSI
NDWVMAHVITAGSLFSLIALVRIAFFAHTSPLWDDLGLKKNSYSFPCLGP
VYGGTCGVSIQDQLWFAMLWGIKGLSAVCWYIDGAWIASMMYGVPAADAK
AWDSIAHLHHHYTSGIFYYFWTETVTIFSSSHLSTILMIGHLVWFISFAV
WFEDRGSRLEGADIQTRTIRWLGKKFLNRDVNFRFPVLTISDSKLAGTFL
YFGGTFMLVFLFLANGFYQTNSPLPPPV

Ligand information

• Ligand ID: G2O
• InChI: InChI=1S/C55H71N4O5.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;/h13,17,22,26,28-33,37,41,51H,1,14-16,18-21,23-25,27H2,2-12H3,(H-,56,57,58,59,61);/q-1;+2/p-1/b22-17+,34-26-;/t32-,33-,37+,41+,51-;/m1./s1
• InChIKey: VQHOHZHNXFAELH-DMJPLALWSA-M
• SMILES:
  OpenEye OEToolkits 2.0.7: CCC1=C(C2=[N]3C1=Cc4c(c5c6n4[Mg]37N8C(=CC9=[N]7C(=C6[C@H](C5=O)C(=O)OC)[C@H]([C@@H]9C)CCC(=O)OC/C=C(/C)\CC=C[C@H](C)CCC[C@H](C)CCCC(C)C)C(=C(C8=C2)C=C)C)C)C
  OpenEye OEToolkits 2.0.7: CCC1=C(C2=[N]3C1=Cc4c(c5c6n4[Mg]37N8C(=CC9=[N]7C(=C6C(C5=O)C(=O)OC)C(C9C)CCC(=O)OCC=C(C)CC=CC(C)CCCC(C)CCCC(C)C)C(=C(C8=C2)C=C)C)C)C
  CACTVS 3.385: CCC1=C(C)C2=NC1=Cc3n4[Mg][N]5C(=CC6=NC(=C7[CH](C(=O)OC)C(=O)c(c3C)c47)[CH](CCC(=O)OCC=C(C)CC=C[CH](C)CCC[CH](C)CCCC(C)C)[CH]6C)C(=C(C=C)C5=C2)C
  CACTVS 3.385: CCC1=C(C)C2=NC1=Cc3n4[Mg][N@]5C(=CC6=NC(=C7[C@@H](C(=O)OC)C(=O)c(c3C)c47)[C@@H](CCC(=O)OC\C=C(\C)C\C=C\[C@H](C)CCC[C@H](C)CCCC(C)C)[C@@H]6C)C(=C(C=C)C5=C2)C
• Formula: C55 H70 Mg N4 O5
• Name: Chlorophyll A ester
• PDB chain: 6m32 Chain A Residue 803

Receptor-Ligand Complex Structure

Structure summary

• PDB: 6m32 Architecture of the photosynthetic complex from a green sulfur bacterium.
• Resolution: 2.7 Å
• Binding residue (original residue number in PDB): M429 F433 M436 R502 W550
• Binding residue (residue number reindexed from 1): M349 F353 M356 R422 W470
• Annotation score: 1

Gene Ontology

Biological Process

• GO:0015979 photosynthesis

Cellular Component

• GO:0009579 thylakoid
• GO:0016020 membrane

External links

• PDB: RCSB:6m32, PDBe:6m32, PDBj:6m32
• PDBsum: 6m32
• PubMed: 33214250
• UniProt: Q8KAY0