Structure of PDB 8vtn Chain M

Receptor sequence

>8vtnM (length=301) Species: 1063 (Cereibacter sphaeroides)

EYQNIFSQVQVRGPADLGMTEDVNLANRSGVGPFSTLLGWFGNAQLGPIY
LGSLGVLSLFSGLMWFFTIGIWFWYQAGWNPAVFLRDLFFFSLEPPAPEY
GLSFAAPLKEGGLWLIASFFMFVAVWSWWGRTYLRAQALGMGKHTAWAFL
SAIWLWMVLGFIRPILMGSWSEAVPYGIFSHLDWTNNFSLVHGNLFYNPF
HGLSIAFLtGSALLFAMHGATILAVSRFGGERELEQIADRGTAAERAALF
VRWTMGFNATMEGIHRWAIWMAVLVTLTGGIGILLSGTVVDNWYVWGQNH
G

3D structure

• PDB: 8vtn Crystal structure of R. sphaeroides Photosynthetic Reaction Center variant Y(M210)2-nitrophenylalanine
• Chain: M
• Resolution: 3.57 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	M	G203 I206 A207 X210	G202 I205 A206 X209
BS02	BCL	M	A153 L156 W157 T186 F189 L196 F197 H202 S205 I206 X210 V276 G280 I284	A152 L155 W156 T185 F188 L195 F196 H201 S204 I205 X209 V275 G279 I283
BS03	FE	M	H219 E234 H266	H218 E233 H265
BS04	BPH	M	F67 W129 F150 A153 A273 T277	F66 W128 F149 A152 A272 T276
BS05	SPO	M	F67 G71 W75 S119 F120 W157 G161 V175 H182	F66 G70 W74 S118 F119 W156 G160 V174 H181
BS06	BPH	M	X210 L214 M218	X209 L213 M217
BS07	BCL	M	L160 H182 L183 W185 T186	L159 H181 L182 W184 T185

Gene Ontology

Molecular Function

• 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
• GO:0042717 plasma membrane-derived chromatophore membrane

External links

• PDB: RCSB:8vtn, PDBe:8vtn, PDBj:8vtn
• PDBsum: 8vtn
• UniProt: P0C0Y9|RCEM_CERSP Reaction center protein M chain (Gene Name=pufM)