1fnp Summary

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CRYSTAL STRUCTURE ANALYSIS OF THE MUTANT REACTION CENTER PRO L209-> PHE FROM THE PHOTOSYNTHETIC PURPLE BACTERIUM RHODOBACTER SPHAEROIDES

The structure was published by Kuglstatter, A., Ermler, U., Michel, H., Baciou, L., and Fritzsch, G., in 2001 in a paper entitled "X-ray structure analyses of photosynthetic reaction center variants from Rhodobacter sphaeroides: structural changes induced by point mutations at position L209 modulate electron and proton transfer." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.6 Å and deposited in 2000.

The experimental data on which the structure is based was not deposited.

This PDB entry contains a complex of 3 biomacromolecules, namely REACTION CENTER PROTEIN L CHAIN, REACTION CENTER PROTEIN M CHAIN, and REACTION CENTER PROTEIN H CHAIN.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule most likely forms heterotrimers.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
L REACTION CENTER PROTEIN L CHAIN P0C0Y8 (2-282) (RCEL_RHOSH)search Rhodobacter sphaeroidessearch 94% 281 100%
M REACTION CENTER PROTEIN M CHAIN P0C0Y9 (2-308) (RCEM_RHOSH)search Rhodobacter sphaeroidessearch 96% 307 98%
H REACTION CENTER PROTEIN H CHAIN P0C0Y7 (1-260) (RCEH_RHOSH)search Rhodobacter sphaeroidessearch 91% 260 92%


This entry contains 3 unique UniProt proteins:

UniProt accession Name Organism PDB
P0C0Y8 (2 - 282) REACTION CENTER PROTEIN L CHAIN Rhodobacter sphaeroides
P0C0Y9 (2 - 308) REACTION CENTER PROTEIN M CHAIN Rhodobacter sphaeroides
P0C0Y7 (1 - 260) REACTION CENTER PROTEIN H CHAIN Rhodobacter sphaeroides

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
L (P0C0Y8) Bacterial photosystem II reaction centre, L and M subunitssearch Membrane spanning alpha-helix pairssearch PF00124: Photosynthetic reaction centre proteinsearch
M (P0C0Y9) Bacterial photosystem II reaction centre, L and M subunitssearch Membrane spanning alpha-helix pairssearch PF00124: Photosynthetic reaction centre proteinsearch
H (P0C0Y7) Photosynthetic reaction centre, H-chain, cytoplasmic domainsearch, Photosystem II reaction centre subunit H, transmembrane regionsearch Photosynthetic Reaction Center, subunit H, domain 1search, Photosynthetic Reaction Center, subunit H, domain 2search PF03967: Photosynthetic reaction centre, H-chain N-terminal regionsearch, PF05239: PRC-barrel domainsearch

Chain ID Biological process (GO) Molecular function (GO) Cellular component (GO)
L (P0C0Y8) photosynthesis, light reactionsearch protein-chromophore linkagesearch photosynthesissearch oxidation-reduction processsearch photosynthetic electron transport in photosystem IIsearch electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activitysearch chlorophyll bindingsearch metal ion bindingsearch bacteriochlorophyll bindingsearch integral component of membranesearch plasma membrane light-harvesting complexsearch membranesearch plasma membrane-derived chromatophore membranesearch
M (P0C0Y9) protein-chromophore linkagesearch photosynthesissearch oxidation-reduction processsearch photosynthesis, light reactionsearch photosynthetic electron transport in photosystem IIsearch chlorophyll bindingsearch metal ion bindingsearch electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activitysearch bacteriochlorophyll bindingsearch integral component of membranesearch plasma membrane-derived chromatophore membranesearch membranesearch plasma membrane light-harvesting complexsearch
H (P0C0Y7) photosynthesis, light reactionsearch oxidation-reduction processsearch photosynthesissearch protein-chromophore linkagesearch electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activitysearch bacteriochlorophyll bindingsearch chlorophyll bindingsearch plasma membrane light-harvesting complexsearch plasma membrane-derived chromatophore membranesearch integral component of membranesearch membranesearch

Chain InterPro annotation
L Photosynthetic reaction centre, L/Msearch Photosynthetic reaction centre, L subunitsearch
M Photosynthetic reaction centre, L/Msearch Photosynthetic reaction centre, M subunitsearch
H Photosynthetic reaction centre, H subunitsearch PRC-barrel-likesearch Bacterial photosynthetic reaction centre, H-chain, C-terminalsearch Photosynthetic reaction centre, H subunit, N-terminalsearch PRC-barrel domainsearch