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StatusReference proteome
Proteome IDiUP000007029
Taxonomy375451 - Roseobacter denitrificans (strain ATCC 33942 / OCh 114)
StrainATCC 33942 / OCh 114
Last modifiedFebruary 27, 2018
Genome assembly and annotationi GCA_000014045.1 from ENA/EMBL
Pan proteomei This proteome is part of the Roseobacter denitrificans (strain ATCC 33942 / OCh 114) (Erythrobacter sp. (strain OCh 114)) (Roseobacter denitrificans) pan proteome (fasta)

Purple aerobic anoxygenic phototrophs (AAPs, also known as AAnPs or APBs) are photoheterotrophic organisms that although able to perform photosynthesis, are not able to survive by phototrophy, instead they depend on the respiration of organic compounds for growth. They do not produce oxygen. They also differ from classical purple phototrophic bacteria by their cessation of photosynthetic pigment synthesis upon illumination. Synthesis of the photosynthetic apparatus in aerobic phototrophic bacteria occurs aerobically in darkness, yet the photosystem produced in darkness synthesizes ATP and enhances growth when cells are illuminated. These bacteria may represent an intermediate evolutionary form between the purple phototrophic bacteria and chemotrophic relatives, or may have arisen from an aerobic chemotroph by lateral gene transfer of photosynthesis genes from a purple. Roseobacter denitrificans Och 114 is a marine bacterium that grows photoheterotrophically in the presence of oxygen and light but also anaerobically in the dark using nitrate or trimethylamine N-oxide as electron acceptors. It has a circular chromosome and 4 circular plasmids. The largest plasmid, pTB1, has significant similarity to the Ti plasmids from Agrobacterium, including DNA integration and transfer proteins, suggesting it might be able to transfer genes to other organisms. R.dentrificans lacks the Calvin cyle enzymes ribulose-bis-phosphate carboxylase (RuBisCO) and phosphoribulokinase, and so cannot fix carbon via this cycle. It may instead do so mixotrophically using several different pathways that are encoded in its genome. It is probably able to oxidize inorganic sulphur, and encodes many transport proteins for peptides and amino acids, sugar and carbohydrates, cations and iron.


DownloadView all proteins
Component nameGenome Accession(s)
Plasmid pTB1105
Plasmid pTB256
Plasmid pTB316
Plasmid pTB46


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