Structure of PDB 1rgn Chain M

Receptor sequence

>1rgnM (length=302) Species: 1063 (Cereibacter sphaeroides) [Search protein sequence]

AEYQNIFSQVQVRGPADLGMTEDVNLANRSGVGPFSTLLGWFGNAQLGPI
YLGSLGVLSLFSGLMWFFTIGIWFWYQAGWNPAVFLRDLFFFSLEPPAPE
YGLSFAAPLKEGGLWLIASFFMFVAVWSWWGRTYLRAQALGMGKHTAWAF
LSAIWLWMVLGFIRPILMGSWSEAVPYGIFSHLDWTNNFSLVHGNLFYNP
FHGLSIAFLYGSALLFAMHGATILAVSRFGGERELEQIADRGTAAERAAL
FWRWTMGFNATMEGIHRWAIWMAVLVTLTGGIGILLSGTVVDNWYVWGQN
HG

3D structure

PDB

1rgn Protein Regulation of Carotenoid Binding: Gatekeeper and Locking Amino Acid Residues in Reaction Centers of Rhodobacter sphaeroides

Chain

Resolution

2.8 Å

3D
structure

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Enzymatic activity

Enzyme Commision number

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)
BS01	BCL	M	G203 I206 A207 Y210	G203 I206 A207 Y210
BS02	BPH	M	Y210 L214 M218	Y210 L214 M218
BS03	FE	M	H219 E234 H266	H219 E234 H266
BS04	BCL	M	L160 H182 L183	L160 H182 L183
BS05	BCL	M	M122 W157 T186 N187 F189 L196 F197 H202 S205 I206 L209 Y210 V276 G280 I284	M122 W157 T186 N187 F189 L196 F197 H202 S205 I206 L209 Y210 V276 G280 I284
BS06	BPH	M	S59 G63 V126 W129 F150 A153 T277	S59 G63 V126 W129 F150 A153 T277
BS07	U10	M	M218 H219 T222 A249 W252 N259 A260 I265 W268	M218 H219 T222 A249 W252 N259 A260 I265 W268
BS08	SPO	M	F67 I70 G71 F74 W75 F105 W115 S119 F120 W157 W171 Y177 H182	F67 I70 G71 F74 W75 F105 W115 S119 F120 W157 W171 Y177 H182

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

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Cellular Component

External links

PDB	RCSB:1rgn, PDBe:1rgn, PDBj:1rgn
PDBsum	1rgn
PubMed	15130469
UniProt	P0C0Y9\|RCEM_CERSP Reaction center protein M chain (Gene Name=pufM)

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