Structure of PDB 7m78 Chain C

Receptor sequence

>7m78C (length=80) Species: 197221 (Thermosynechococcus vestitus BP-1)

AHTVKIYDTCIGCTQCVRACPTDVLEMVPWDGCKAGQIASSPRTEDCVGC
KRCETACPTDFLSIRVYLGAETTRSMGLAY

3D structure

• PDB: 7m78 Room temperature XFEL crystallography reveals asymmetry in the vicinity of the two phylloquinones in photosystem I.
• Chain: C
• Resolution: 3.0 Å

Enzymatic activity

• Enzyme Commision number: 1.97.1.12: photosystem I.

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	SF4	C	C20 V24 L25 C47 G49 C50 K51 C53 V66	C20 V24 L25 C47 G49 C50 K51 C53 V66
BS02	SF4	C	C10 I11 C13 C16 C57 S63 I64	C10 I11 C13 C16 C57 S63 I64

Gene Ontology

Molecular Function

• GO:0009055 electron transfer activity
• GO:0016491 oxidoreductase activity
• GO:0046872 metal ion binding
• GO:0051539 4 iron, 4 sulfur cluster binding

Biological Process

• GO:0009773 photosynthetic electron transport in photosystem I
• GO:0015979 photosynthesis

Cellular Component

• GO:0009522 photosystem I
• GO:0009579 thylakoid
• GO:0016020 membrane
• GO:0031676 plasma membrane-derived thylakoid membrane
• GO:0042651 thylakoid membrane

External links

• PDB: RCSB:7m78, PDBe:7m78, PDBj:7m78
• PDBsum: 7m78
• PubMed: 34750381
• UniProt: P0A415|PSAC_THEVB Photosystem I iron-sulfur center (Gene Name=psaC)