ArticleJournal of bacteriology2002
Rhodospirillum rubrum possesses a variant of the bchP gene, encoding geranylgeranyl-bacteriopheophytin reductase.
Article in Journal of bacteriology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 39 citations in OpenAlex.
- The structure and assembly of reaction centre-light-harvesting 1 complexes in photosynthetic bacteria.Bioscience reports · 2023Article
- The terminal enzymes of (bacterio)chlorophyll biosynthesis.Royal Society open science · 2022Review
- Genome-Wide Investigation of theFrontiers in plant science · 2022Article
- Cryo-EM structure of the Rhodospirillum rubrum RC-LH1 complex at 2.5 Å.The Biochemical journal · 2021Article
- Inhibition of bacteriochlorophyll biosynthesis in the purple phototrophic bacteria Rhodospirillumrubrum and Rhodobacter capsulatus grown in the presence of a toxic concentration of selenite.BMC microbiology · 2018Article
- Partial Saturation of Menaquinone inACS central science · 2015Article
- Article
- A glutathione redox effect on photosynthetic membrane expression in Rhodospirillum rubrum.Journal of bacteriology · 2011Article
- Characterization of an FMO variant of Chlorobaculum tepidum carrying bacteriochlorophyll a esterified by geranylgeraniol.Biochemistry · 2010Article
- Specific partial reduction of geranylgeranyl diphosphate by an enzyme from the thermoacidophilic archaeon Sulfolobus acidocaldarius yields a reactive prenyl donor, not a dead-end product.Journal of bacteriology · 2008Article
- Identification of the bchP gene, encoding geranylgeranyl reductase in Chlorobaculum tepidum.Journal of bacteriology · 2008Article
- Modeling the electron transport chain of purple non-sulfur bacteria.Molecular systems biology · 2008Article
- Menaquinone-specific prenyl reductase from the hyperthermophilic archaeon Archaeoglobus fulgidus.Journal of bacteriology · 2005Article
- Mycobacterium tuberculosis pks12 produces a novel polyketide presented by CD1c to T cells.The Journal of experimental medicine · 2004Article
- Composition and localization of bacteriochlorophyll a intermediates in the purple photosynthetic bacterium Rhodopseudomonas sp. Rits.Photosynthesis researchArticle
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2 authors at 1 institution in 1 country.
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Abstract
The bchP gene product of Rhodobacter sphaeroides is responsible for the reduction of the isoprenoid moiety of bacteriochlorophyll (Bchl) from geranylgeraniol (GG) to phytol; here, we show that this enzyme also catalyzes the reduction of the isoprenoid moiety of bacteriopheophytin (Bphe). In contrast, we demonstrate that a newly identified homolog of this gene in Rhodospirillum rubrum encodes an enzyme, GG-Bphe reductase, capable of reducing the isoprenoid moiety of Bphe only. We propose that Rhodospirillum rubrum is a naturally occurring bchP mutant and that an insertion mutation may have been the initial cause of a partial loss of function. Normal BchP function can be restored to Rhodospirillum rubrum, creating a new transconjugant strain possessing Bchl esterified with phytol. We speculate on the requirement of Rhodospirillum rubrum for phytylated Bphe and on a potential link between the absence of LH2 and of phytylated Bchl from the wild-type bacterium. The identification of a second role for the fully functional BchP in catalyzing the synthesis of phytylated Bphe strongly suggests that homologs of this enzyme may be similarly responsible for the synthesis of phytylated pheophytin in organisms possessing photosystem 2. In addition to bchP, other members of a photosynthesis gene cluster were identified in Rhodospirillum rubrum, including a bchG gene, demonstrated to encode a functional Bchl synthetase by complementation of a Rhodobacter sphaeroides mutant.
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