Structure of PDB 7mh3 Chain M Binding Site BS05

Receptor Information

>7mh3 Chain M (length=301) Species: 1063 (Cereibacter sphaeroides)

EYQNIFSQVQVRGPADLGMTEDVNLANRSGVGPFSTLLGWFGNAQLGPIY
LGSLGVLSLFSGLMWFFTIGIWFWYQAGWNPAVFLRDLFFFSLEPPAPEY
GLSFAAPLKEGGLWLIASFFMFVAVWSWWGRTYLRAQALGMGKHTAWAFL
SAIWLWMVLGFIRPILMGSWSEAVPYGIFSHLDWTNNFSLVHGNLFYNPF
HGLSIAFLYGSALLFAMHGATILAVSRFGGERELEQIADRGTAAERAALF
WRWTMGFNATMEGIHRWAIWMAVLVTLTGGIGILLSGTVVDNWYVWGQNH
G

Ligand information

• Ligand ID: FE
• InChI: InChI=1S/Fe/q+3
• InChIKey: VTLYFUHAOXGGBS-UHFFFAOYSA-N
• SMILES:
  ACDLabs 10.04
  CACTVS 3.341
  OpenEye OEToolkits 1.5.0: [Fe+3]
• Formula: Fe
• Name: FE (III) ION
• DrugBank: DB13949
• PDB chain: 7mh3 Chain M Residue 406

Receptor-Ligand Complex Structure

Structure summary

• PDB: 7mh3 Photosynthetic reaction center variants made via genetic code expansion show Tyr at M210 tunes the initial electron transfer mechanism.
• Resolution: 2.3 Å
• Binding residue (original residue number in PDB): H219 E234 H266
• Binding residue (residue number reindexed from 1): H218 E233 H265
• Annotation score: 4

Gene Ontology

Molecular Function

• GO:0042314 bacteriochlorophyll binding
• GO:0045156 electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity
• GO:0046872 metal ion binding

Biological Process

• GO:0009772 photosynthetic electron transport in photosystem II
• GO:0015979 photosynthesis
• GO:0019684 photosynthesis, light reaction

Cellular Component

• GO:0016020 membrane
• GO:0030077 plasma membrane light-harvesting complex
• GO:0042717 plasma membrane-derived chromatophore membrane

External links

• PDB: RCSB:7mh3, PDBe:7mh3, PDBj:7mh3
• PDBsum: 7mh3
• PubMed: 34907018
• UniProt: Q3J1A6|RCEM_CERS4 Reaction center protein M chain (Gene Name=pufM)