Structure of PDB 8k5o Chain L

Receptor sequence

>8k5oL (length=275) Species: 1052 (Halorhodospira halochloris)

AMLDFERKYRVRGGTLLGGDLFDFWVGPFYVGFFGVTAIFCAVFGFLMIG
LKAAISETWSIFQLVLAPPNLENGFALAPLDEGGLWQIVTACAIGAFVSW
ALREVEISRKLGIGYHIPFAFGVAISFFVLAQLGRPLLLGGWGHAFPYGI
IAHLDWVNNVGYQNLHYHYHWAHMLGCSLFFATSFALALHGGLILSVTNP
KKGEVVKTAEHENTFFRDFVGYSIGSLGIHRLGLALALSTSISCIFGILT
TGPFWSRGWPEWWYTWWPQIPIWNW

3D structure

• PDB: 8k5o Structural insights into the unusual core photocomplex from a triply extremophilic purple bacterium, Halorhodospira halochloris.
• Chain: L
• Resolution: 2.42 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	peptide	L	Q270 P272	Q269 P271
BS02	A1LZM	L	F98 F122 A125 F128 V158 Y163 Y168 H169 A173 H174 G177 C178 F181 F182 S244 C245 G248 I249	F97 F121 A124 F127 V157 Y162 Y167 H168 A172 H173 G176 C177 F180 F181 S243 C244 G247 I248
BS03	A1LZM	L	I50 F98 F129 F147 I151 H154 L155 V158	I49 F97 F128 F146 I150 H153 L154 V157
BS04	A1LZP	L	A43 F47 W101 E105 I118 F122 A125 Y149 H154 A238	A42 F46 W100 E104 I117 F121 A124 Y148 H153 A237
BS05	UQ8	L	S179 A183 F186 L190 H191 L194 E213 N214 F217 Y223 S224 I225 G226 S227 I230 L233 L237	S178 A182 F185 L189 H190 L193 E212 N213 F216 Y222 S223 I224 G225 S226 I229 L232 L236
BS06	FE	L	H191 H231	H190 H230
BS07	A1LZM	L	M175 C178 S179 F182 A183 F186 V221	M174 C177 S178 F181 A182 F185 V220
BS08	A1LZP	L	F182 F186 L190 F220 V221	F181 F185 L189 F219 V220
BS09	MQ8	L	V27 F30 V32 G36 V37 I40 W101 R104	V26 F29 V31 G35 V36 I39 W100 R103

Gene Ontology

Molecular Function

• GO:0042314 bacteriochlorophyll binding
• GO:0046872 metal ion binding

Biological Process

• GO:0015979 photosynthesis

Cellular Component

• GO:0016020 membrane

External links

• PDB: RCSB:8k5o, PDBe:8k5o, PDBj:8k5o
• PDBsum: 8k5o
• PubMed: 38411333
• UniProt: A0A0X8XAH6