Reaction center protein L chain


Reaction center protein L chain
  • Photosynthetic reaction center L subunit
Gene Name
Rhodobacter sphaeroides
Amino acid sequence
>lcl|BSEQ0020734|Reaction center protein L chain
Number of residues
Molecular Weight
Theoretical pI
Not Available
GO Classification
bacteriochlorophyll binding / electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity / metal ion binding
photosynthetic electron transport in photosystem II / protein-chromophore linkage
integral component of membrane / plasma membrane light-harvesting complex / plasma membrane-derived chromatophore membrane
General Function
Metal ion binding
Specific Function
The reaction center is a membrane-bound complex that mediates the initial photochemical event in the electron transfer process of photosynthesis.
Pfam Domain Function
Transmembrane Regions
33-56 84-112 117-139 172-199 226-251
Cellular Location
Cellular chromatophore membrane
Chromosome Location
Not Available
Not Available
External Identifiers
UniProtKB IDP0C0Y8
UniProtKB Entry NameRCEL_RHOSH
General References
  1. Williams JC, Steiner LA, Feher G, Simon MI: Primary structure of the L subunit of the reaction center from Rhodopseudomonas sphaeroides. Proc Natl Acad Sci U S A. 1984 Dec;81(23):7303-7. [Article]
  2. Arnoux B, Ducruix A, Astier C, Picaud M, Roth M, Reiss-Husson F: Towards the understanding of the function of Rb sphaeroides Y wild type reaction center: gene cloning, protein and detergent structures in the three-dimensional crystals. Biochimie. 1990 Aug;72(8):525-30. [Article]
  3. Chang CH, el-Kabbani O, Tiede D, Norris J, Schiffer M: Structure of the membrane-bound protein photosynthetic reaction center from Rhodobacter sphaeroides. Biochemistry. 1991 Jun 4;30(22):5352-60. [Article]
  4. Allen JP, Feher G, Yeates TO, Komiya H, Rees DC: Structure of the reaction center from Rhodobacter sphaeroides R-26: protein-cofactor (quinones and Fe2+) interactions. Proc Natl Acad Sci U S A. 1988 Nov;85(22):8487-91. [Article]
  5. Allen JP, Feher G, Yeates TO, Komiya H, Rees DC: Structure of the reaction center from Rhodobacter sphaeroides R-26: the protein subunits. Proc Natl Acad Sci U S A. 1987 Sep;84(17):6162-6. [Article]
  6. McAuley-Hecht KE, Fyfe PK, Ridge JP, Prince SM, Hunter CN, Isaacs NW, Cogdell RJ, Jones MR: Structural studies of wild-type and mutant reaction centers from an antenna-deficient strain of Rhodobacter sphaeroides: monitoring the optical properties of the complex from bacterial cell to crystal. Biochemistry. 1998 Apr 7;37(14):4740-50. [Article]
  7. Yun CH, Van Doren SR, Crofts AR, Gennis RB: The use of gene fusions to examine the membrane topology of the L-subunit of the photosynthetic reaction center and of the cytochrome b subunit of the bc1 complex from Rhodobacter sphaeroides. J Biol Chem. 1991 Jun 15;266(17):10967-73. [Article]

Drug Relations

Drug Relations
DrugBank IDNameDrug groupPharmacological action?ActionsDetails
DB04147Dodecyldimethylamine N-oxideexperimentalunknownDetails
DB08690Ubiquinone Q2experimentalunknownDetails