Structure of PDB 4v8k Chain BL

Receptor sequence

>4v8kBL (length=280) Species: 1050 (Thermochromatium tepidum)

AMLSFEKKYRVRGGTLIGGDLFDFWVGPFYVGFFGVVGFCFTLLGVLLIV
WGATIGPTGPTSDLQTYNLWRISIAPPDLSYGLRMAPLTEGGLWQIITIC
AAGAFISWALREVEICRKLGIGFHVPFAFSFAIGAYLVLVFVRPLLMGAW
GHGFPYGILSHLDWVSNVGYQFLHFHYNPAHMLAISFFFTNCLALSMHGS
LILSVTNPQKGEPVKTSEHENTFFRDIVGYSIGALAIHRLGLFLALSAAF
WSAVCILISGPFWTRGWPEWWNWWLELPLW

3D structure

• PDB: 4v8k Structure of the LH1-RC complex from Thermochromatium tepidum at 3.0 angstrom
• Chain: BL
• Resolution: 3.006 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	BCL	BL	F106 A133 L140 V166 S167 H177 H182 A185 I186 F189 S253 A254 I257	F105 A132 L139 V165 S166 H176 H181 A184 I185 F188 S252 A253 I256
BS02	BPH	BL	T43 V47 A102 A105 F106 W109 E113 F130 A133 Y137 Y157 G158 H162 A246	T42 V46 A101 A104 F105 W108 E112 F129 A132 Y136 Y156 G157 H161 A245
BS03	UQ8	BL	F188 T191 M198 H199 N222 F225 S232 I233 G234 A235 I238 F244 S248 W252	F187 T190 M197 H198 N221 F224 S231 I232 G233 A234 I237 F243 S247 W251
BS04	BCL	BL	I50 Y137 F155 H162 L163	I49 Y136 F154 H161 L162
BS05	BCL	BL	M183 I186 S187 F190 T191	M182 I185 S186 F189 T190
BS06	BCL	BL	H177 F190	H176 F189
BS07	BPH	BL	F190 C193 L194 S197	F189 C192 L193 S196
BS08	FE	BL	H199 H239	H198 H238

Gene Ontology

Molecular Function

• GO:0005515 protein binding
• 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

External links

• PDB: RCSB:4v8k, PDBe:4v8k, PDBj:4v8k
• PDBsum: 4v8k
• PubMed: 24670637
• UniProt: D2Z0P3