Structure of PDB 3eoj Chain A

Receptor sequence

>3eojA (length=358) Species: 1102 (Prosthecochloris aestuarii)

TTTAHSDYEIILEGGSSSWGQVKGRAKVNVPAAIPLLPTDCNIRIDAKPL
DAQKGVVRFTTKIESVVDSVKNTLNVEVDIANETKDRRIAVGEGSLSVGD
FSHSFSFEGSVVNMYYYRSDAVRRNIPNPIYMQGRQFHDILMKVPLDNND
LVDTWEGFQQSISGGGANFGDWIREFWFIGPAFAAINEGGQRISPIVVNS
SNVEGGKGPVGVTRWKFSHAGSGVVDSISRWTELFPVEQLNKPASIEGGF
RSDSQGIEVKVDGNLPGVSRDAGGGLRRILNHPLIPLVHHGMVGKFNDFT
VDTQLKIVLPKGYKIRYAAPQFRSQNLEEYRWSGGAYARWVEHVCKGGTG
QFEVLYAQ

3D structure

• PDB: 3eoj The structural basis for the difference in absorbance spectra for the FMO antenna protein from various green sulfur bacteria.
• Chain: A
• Resolution: 1.3 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	A	L103 F108 H110 F112 M149 V151 D157 L158 T161 W162 F165 F183 W184 W223	L96 F101 H103 F105 M142 V144 D150 L151 T154 W155 F158 F176 W177 W215
BS02	BCL	A	I41 S72 V74 N79 F112 F114 I186	I34 S65 V67 N72 F105 F107 I179
BS03	BCL	A	Y15 A33 A39 A40 F258 S260 I265 H298 V301 F307 C353	Y8 A26 A32 A33 F250 S252 I257 H290 V293 F299 C345
BS04	BCL	A	Y15 V29 L288 H290 P291 P294 H298 Y345 W348 F360	Y8 V22 L280 H282 P283 P286 H290 Y337 W340 F352
BS05	BCL	A	A54 F66 R238 L242 F243 P244 P274 P291	A47 F59 R230 L234 F235 P236 P266 P283
BS06	BCL	A	I52 R95 I96 A97 V118 Q143 H145 W184 H227 W239 A252 S253	I45 R88 I89 A90 V111 Q136 H138 W177 H219 W231 A244 S245
BS07	BCL	A	A40 I41 I186 P188 A189 A192 Q198 H297 H298 M300 V301	A33 I34 I179 P181 A182 A185 Q191 H289 H290 M292 V293
BS08	BCL	A	M121 Y123 Y124 R125	M114 Y116 Y117 R118

Gene Ontology

Molecular Function

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

Biological Process

• GO:0015979 photosynthesis

External links

• PDB: RCSB:3eoj, PDBe:3eoj, PDBj:3eoj
• PDBsum: 3eoj
• PubMed: 19437128
• UniProt: P11741|BCPA_PROAE Bacteriochlorophyll a protein