1umx Summary

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PHOTOSYNTHETIC REACTION CENTER MUTANT WITH ARG M267 REPLACED WITH LEU (CHAIN M, R267L)

The structure was published by Fyfe, P.K., Isaacs, N.W., Cogdell, R.J., and Jones, M.R., in 2004 in a paper entitled "Disruption of a Specific Molecular Interaction with a Bound Lipid Affects the Thermal Stability of the Purple Bacterial Reaction Centre" (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.8 Å and deposited in 2003.

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 H CHAIN, REACTION CENTER PROTEIN L CHAIN, and REACTION CENTER 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 P0C0Y7 (1-260) (RCEH_RHOSH)search Rhodobacter sphaeroidessearch 91% 260 92%
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%


This entry contains 3 unique UniProt proteins:

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

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
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
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

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

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