Structure of PDB 6mez Chain B

Receptor sequence

>6mezB (length=359) Species: 1102 (Prosthecochloris aestuarii)

TTTAHSDYEIILEGGSSSWGQVKGRAKVNVPAAIPLLPTDCNIRIDAKPL
DAQKGVVRFTTKIESVVDSVKNTLNVEVDIANETKDRRIAVGEGSLSVGD
FSHSFSFEGSVVNMYYYRSDAVRRNIPNPIYMQGRQFHDILMKVPLDNND
LVDTWEGFQQSISGGGANFGDWIREFWFIGPAFAAINEGGQRISPIVVNS
SNVEGGEKGPVGVTRWKFSHAGSGVVDSISRWTELFPVEQLNKPASIEGG
FRSDSQGIEVKVDGNLPGVSRDAGGGLRRILNHPLIPLVHHGMVGKFNDF
TVDTQLKIVLPKGYKIRYAAPQFRSQNLEEYRWSGGAYARWVEHVCKGGT
GQFEVLYAQ

3D structure

• PDB: 6mez Neutron and X-ray analysis of the Fenna-Matthews-Olson photosynthetic antenna complex from Prosthecochloris aestuarii.
• Chain: B
• Resolution: 1.74 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	B	V105 F108 H110 F112 M149 V151 D157 L158 T161 W162 F165	V98 F101 H103 F105 M142 V144 D150 L151 T154 W155 F158
BS02	BCL	B	I41 S72 N79 F112 F114	I34 S65 N72 F105 F107
BS03	BCL	B	Y15 A40 F258 S260 I265 V267 H298 V301 F307 C353	Y8 A33 F251 S253 I258 V260 H291 V294 F300 C346
BS04	BCL	B	Y15 L288 H290 P291 P294 H298 Y345 W348 F360	Y8 L281 H283 P284 P287 H291 Y338 W341 F353
BS05	BCL	B	A54 F66 R238 L242 F243 P244 I254 P274 P291	A47 F59 R231 L235 F236 P237 I247 P267 P284
BS06	BCL	B	I52 F66 R95 I96 A97 V118 Q143 H145 W184 H227 S235	I45 F59 R88 I89 A90 V111 Q136 H138 W177 H220 S228
BS07	BCL	B	A40 I41 I186 P188 A189 A192 H297 H298 V301	A33 I34 I179 P181 A182 A185 H290 H291 V294

Gene Ontology

Molecular Function

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

Biological Process

• GO:0015979 photosynthesis

External links

• PDB: RCSB:6mez, PDBe:6mez, PDBj:6mez
• PDBsum: 6mez
• PubMed: 30839291
• UniProt: P11741|BCPA_PROAE Bacteriochlorophyll a protein