2wx5 Summary

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HEXA-COORDINATION OF A BACTERIOCHLOROPHYLL COFACTOR IN THE RHODOBACTER SPHAEROIDES REACTION CENTRE

The structure was published by Frolov, D., Marsh, M., Crouch, L.I., et al., Vangrondelle, R., Hadfield, A.T., and Jones, M.R., in 2010 in a paper entitled "Structural and Spectroscopic Consequences of Hexa-Coordination of a Bacteriochlorophyll Cofactor in the Rhodobacter Sphaeroides Reaction Centre" (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.63 Å and deposited in 2009.

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 H CHAIN, REACTION CENTRE PROTEIN L CHAIN, and REACTION CENTRE PROTEIN M 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
H REACTION CENTER PROTEIN H CHAIN Q3J170 (1-260) (RCEH_RHOS4)search Rhodobacter sphaeroides 2.4.1search 93% 260 92%
L REACTION CENTRE PROTEIN L CHAIN Q3J1A5 (2-282) (RCEL_RHOS4)search Rhodobacter sphaeroides 2.4.1search 100% 281 100%
M REACTION CENTRE PROTEIN M CHAIN Q3J1A6 (2-308) (RCEM_RHOS4)search Rhodobacter sphaeroides 2.4.1search 98% 307 98%


This entry contains 3 unique UniProt proteins:

UniProt accession Name Organism PDB
Q3J170 (1 - 260) REACTION CENTER PROTEIN H CHAIN Rhodobacter sphaeroides
Q3J1A5 (2 - 282) REACTION CENTRE PROTEIN L CHAIN Rhodobacter sphaeroides
Q3J1A6 (2 - 308) REACTION CENTRE PROTEIN M CHAIN Rhodobacter sphaeroides

Chain Structural classification (CATH) Sequence family (Pfam)
H (Q3J170) 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
L (Q3J1A5) Membrane spanning alpha-helix pairssearch PF00124: Photosynthetic reaction centre proteinsearch
M (Q3J1A6) Membrane spanning alpha-helix pairssearch PF00124: Photosynthetic reaction centre proteinsearch

Chain ID Molecular function (GO) Cellular component (GO) Biological process (GO)
H (Q3J170) electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activitysearch chlorophyll bindingsearch bacteriochlorophyll bindingsearch plasma membrane light-harvesting complexsearch plasma membrane-derived chromatophore membranesearch membranesearch integral component of membranesearch photosynthesis, light reactionsearch protein-chromophore linkagesearch oxidation-reduction processsearch photosynthesissearch
L (Q3J1A5) electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activitysearch bacteriochlorophyll bindingsearch chlorophyll bindingsearch metal ion bindingsearch plasma membrane light-harvesting complexsearch membranesearch plasma membrane-derived chromatophore membranesearch integral component of membranesearch photosynthesis, light reactionsearch photosynthetic electron transport in photosystem IIsearch protein-chromophore linkagesearch photosynthesissearch oxidation-reduction processsearch
M (Q3J1A6) electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activitysearch chlorophyll bindingsearch metal ion bindingsearch bacteriochlorophyll bindingsearch plasma membrane light-harvesting complexsearch integral component of membranesearch plasma membrane-derived chromatophore membranesearch membranesearch photosynthetic electron transport in photosystem IIsearch photosynthesissearch oxidation-reduction processsearch protein-chromophore linkagesearch photosynthesis, light reactionsearch

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