Structure of PDB 7q7p Chain CCC

Receptor sequence

>7q7pCCC (length=332) Species: 1079 (Blastochloris viridis)

CFEPPPATTTQTGFRGLSMGEVLHPATVKAKKERDAQYPPALAAVKAEGP
PVSQVYKNVKVLGNLTEAEFLRTMTAITEWVSPQEGCTYCHDENNLASEA
KYPYVVARRMLEMTRAINTNWTQHVAQTGVTCYTCHRGTPLPPYVRYLEP
TLPLNNRETPTHVERVETRSGYVVRLAKYTAYSALNYDPFTMFLANDKRQ
VRVVPQTALPLVGVSRGKERRPLSDAYATFALMMSISDSLGTNCTFCHNA
QTFESWGKKSTPQRAIAWWGIRMVRDLNMNYLAPLNASLPASRLGRQGEA
PQADCRTCHQGVTKPLFGASRLKDYPELGPIK

3D structure

• PDB: 7q7p Lipidic cubic phase serial femtosecond crystallography structure of a photosynthetic reaction centre.
• Chain: CCC
• Resolution: 2.4 Å

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	HEC	CCC	Y56 K57 N58 V59 K60 V61 F70 M74 T78 C87 C90 H91 L96 A97 Y104 R108	Y56 K57 N58 V59 K60 V61 F70 M74 T78 C87 C90 H91 L96 A97 Y104 R108
BS02	HEC	CCC	V81 Y89 Y102 V106 M110 M113 T114 C132 C135 H136 P140 L141 P142 R293	V81 Y89 Y102 V106 M110 M113 T114 C132 C135 H136 P140 L141 P142 R293
BS03	HEC	CCC	R202 V204 T229 M233 S237 C244 C247 H248 F253 E254 R264 W268 R272	R202 V204 T229 M233 S237 C244 C247 H248 F253 E254 R264 W268 R272
BS04	HEC	CCC	H124 V125 T128 Q263 I266 G270 I271 M273 C305 C308 H309 K314 P315	H124 V125 T128 Q263 I266 G270 I271 M273 C305 C308 H309 K314 P315

Gene Ontology

Molecular Function

• GO:0005506 iron ion binding
• GO:0009055 electron transfer activity
• GO:0020037 heme binding

Biological Process

• GO:0019684 photosynthesis, light reaction

Cellular Component

• GO:0030077 plasma membrane light-harvesting complex

External links

• PDB: RCSB:7q7p, PDBe:7q7p, PDBj:7q7p
• PDBsum: 7q7p
• PubMed: 35647917
• UniProt: P07173|CYCR_BLAVI Photosynthetic reaction center cytochrome c subunit (Gene Name=pufC)