1z9k Summary

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Photosynthetic Reaction Center from Rhodobacter sphaeroides

The structure was published by Uyeda, G., Camara-Artigas, A., Williams, J.C., and Allen, J.P., in 2005 in a paper entitled "Design of a Redox-Linked Active Metal Site: Manganese Bound to Bacterial Reaction Centers at a Site Resembling That of Photosystem II" (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 4.6 Å and deposited in 2005.

The experimental data on which the structure is based was also 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 has more than one probable quaternary state observed. For more details see the quaternary structure page.

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
A Reaction center protein L chain P0C0Y8 (2-282) (RCEL_RHOSH)search Rhodobacter sphaeroidessearch 94% 281 100%
B Reaction center protein M chain P0C0Y9 (2-308) (RCEM_RHOSH)search Rhodobacter sphaeroidessearch 96% 307 98%
C Reaction center protein H chain P0C0Y7 (1-260) (RCEH_RHOSH)search Rhodobacter sphaeroidessearch 91% 260 91%


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) Sequence family (Pfam)
A (P0C0Y8) Bacterial photosystem II reaction centre, L and M subunitssearch PF00124: Photosynthetic reaction centre proteinsearch
B (P0C0Y9) Bacterial photosystem II reaction centre, L and M subunitssearch PF00124: Photosynthetic reaction centre proteinsearch
C (P0C0Y7) PF03967: Photosynthetic reaction centre, H-chain N-terminal regionsearch, PF05239: PRC-barrel domainsearch

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

Chain InterPro annotation
A Photosynthetic reaction centre, L/Msearch Photosynthetic reaction centre, L subunitsearch
B Photosynthetic reaction centre, L/Msearch Photosynthetic reaction centre, M subunitsearch
C 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