Structure of PDB 7c52 Chain C

Receptor sequence

>7c52C (length=311) Species: 1050 (Thermochromatium tepidum)

CEGPPPGTEQIGYRGVGMENYYNKRQRALSIQANQPVESLPAADSTGPKA
SEVYQNVQVLKDLSVGEFTRTMVAVTTWVSPKEGCNYCHVPGNWASDDIY
TKVVSRRMFELVRAANSDWKAHVAETGVTCYTCHRGNPVPKYAWVTDPGP
KYPSGLKPTGQNYGSKTVAYASLPFDPLTPFLDQANEIRITGNAALAGSN
PASLKQAEWTFGLMMNISDSLGVGCTFCHNTRAFNDWTQSTPKRTTAWYA
IRHVRDINQNYIWPLNDVLPASRKGPYGDPLRVSCMTCHQAVNKPLYGAQ
MAKDYPGLYKT

3D structure

• PDB: 7c52 Crystal structure of a photosynthetic LH1-RC in complex with its electron donor HiPIP.
• Chain: C
• Resolution: 2.89 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	HEM	C	Y76 Q77 N78 V79 Q80 V81 F90 M94 T98 C107 C110 H111 W116 A117 K124 S127 R128	Y54 Q55 N56 V57 Q58 V59 F68 M72 T76 C85 C88 H89 W94 A95 K102 S105 R106
BS02	HEM	C	V101 Y109 Y122 T123 V126 S127 M130 F131 V134 C152 C155 H156 V161 P162 R295 L303 V305	V79 Y87 Y100 T101 V104 S105 M108 F109 V112 C130 C133 H134 V139 P140 R273 L281 V283
BS03	HEM	C	R211 I212 T213 F233 M236 S240 C247 C250 H251 F256 N257 R266 A269 W270 R274	R189 I190 T191 F211 M214 S218 C225 C228 H229 F234 N235 R244 A247 W248 R252
BS04	HEM	C	H144 V145 A146 T148 G149 V150 L243 K265 T268 A272 V276 C307 C310 H311 N315 K316 P317	H122 V123 A124 T126 G127 V128 L221 K243 T246 A250 V254 C285 C288 H289 N293 K294 P295
BS05	CA	C	Q183 E230	Q161 E208

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:7c52, PDBe:7c52, PDBj:7c52
• PDBsum: 7c52
• PubMed: 33597527
• UniProt: D2Z0P5|CYCR_THETI Photosynthetic reaction center cytochrome c subunit (Gene Name=pufC)