Structure of PDB 1umx Chain M

Receptor sequence

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

AEYQNIFSQVQVRGPADLGMTEDVNLANRSGVGPFSTLLGWFGNAQLGPI
YLGSLGVLSLFSGLMWFFTIGIWFWYQAGWNPAVFLRDLFFFSLEPPAPE
YGLSFAAPLKEGGLWLIASFFMFVAVWSWWGRTYLRAQALGMGKHTAWAF
LSAIWLWMVLGFIRPILMGSWSEAVPYGIFSHLDWTNNFSLVHGNLFYNP
FHGLSIAFLYGSALLFAMHGATILAVSRFGGERELEQIADRGTAAERAAL
FWRWTMGFNATMEGIHLWAIWMAVLVTLTGGIGILLSGTVVDNWYVWGQN
HG

3D structure

PDB

1umx Disruption of a specific molecular interaction with a bound lipid affects the thermal stability of the purple bacterial reaction centre.

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 L214	G203 I206 A207 Y210 L214
BS02	BPB	M	Y210 L214	Y210 L214
BS03	BCL	M	L160 H182 L183	L160 H182 L183
BS04	BCL	M	M122 L156 T186 S190 L196 F197 H202 S205 I206 G280 I284	M122 L156 T186 S190 L196 F197 H202 S205 I206 G280 I284
BS05	FE	M	H219 E234 H266	H219 E234 H266
BS06	BPB	M	G63 W66 F67 W129 A149 F150 A153 A273 T277	G63 W66 F67 W129 A149 F150 A153 A273 T277
BS07	SPN	M	I70 G71 W75 W115 S119 W157 F162 H182	I70 G71 W75 W115 S119 W157 F162 H182
BS08	U10	M	M218 H219 T222 W252 M256 N259 A260 T261 I265 W268	M218 H219 T222 W252 M256 N259 A260 T261 I265 W268

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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Molecular Function

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Cellular Component

External links

PDB	RCSB:1umx, PDBe:1umx, PDBj:1umx
PDBsum	1umx
PubMed	14741581
UniProt	P0C0Y9\|RCEM_CERSP Reaction center protein M chain (Gene Name=pufM)

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