ArticleApplied and environmental microbiology2006
Transcriptional organization and regulation of magnetosome operons in Magnetospirillum gryphiswaldense.
Article in Applied and environmental microbiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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30 citing papers in PubMed, 74 citations in OpenAlex.
- A cumate-inducible promoter system for tuned gene expression and magnetosome overproduction in magnetotactic bacteria.Applied microbiology and biotechnology · 2026Article
- No evidence for the putative nitric oxide sensor NsrR as a key regulator of magnetosome formation in Magnetospirillum gryphiswaldense.Nucleic acids research · 2026Article
- Bacterial Organelles in Iron Physiology.Molecular microbiology · 2024Review
- Article
- Gradient Magnetic Field Accelerates Division ofCells · 2023Article
- The transcriptomic landscape of Magnetospirillum gryphiswaldense during magnetosome biomineralization.BMC genomics · 2022Article
- The Complex Transcriptional Landscape of Magnetosome Gene Clusters in Magnetospirillum gryphiswaldense.mSystems · 2021Article
- Article
- A Compass To Boost Navigation: Cell Biology of Bacterial Magnetotaxis.Journal of bacteriology · 2020Review
- Magnetic genes: Studying the genetics of biomineralization in magnetotactic bacteria.PLoS genetics · 2020Review
- A Novel Highly Efficient Device for Growing Micro-Aerophilic Microorganisms.Frontiers in microbiology · 2019Article
- Magnetosome biogenesis in magnetotactic bacteria.Nature reviews. Microbiology · 2016Review
- Crystallizing the function of the magnetosome membrane mineralization protein Mms6.Biochemical Society transactions · 2016Review
- From invagination to navigation: The story of magnetosome-associated proteins in magnetotactic bacteria.Protein science : a publication of the Protein Society · 2016Review
- Genetic dissection of the mamAB and mms6 operons reveals a gene set essential for magnetosome biogenesis in Magnetospirillum gryphiswaldense.Journal of bacteriology · 2014Article
- New vectors for chromosomal integration enable high-level constitutive or inducible magnetosome expression of fusion proteins in Magnetospirillum gryphiswaldense.Applied and environmental microbiology · 2014Article
- Biosynthesis of magnetic nanostructures in a foreign organism by transfer of bacterial magnetosome gene clusters.Nature nanotechnology · 2014Article
- Structure prediction of magnetosome-associated proteins.Frontiers in microbiology · 2014Article
- Ecology, diversity, and evolution of magnetotactic bacteria.Microbiology and molecular biology reviews : MMBR · 2013Review
- Frequent mutations within the genomic magnetosome island of Magnetospirillum gryphiswaldense are mediated by RecA.Journal of bacteriology · 2011Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Genes involved in magnetite biomineralization are clustered within the genomic magnetosome island of Magnetospirillum gryphiswaldense. Their transcriptional organization and regulation were studied by several approaches. Cotranscription of genes within the mamAB, mamDC, and mms clusters was demonstrated by reverse transcription-PCR (RT-PCR) of intergenic regions, indicating the presence of long polycistronic transcripts extending over more than 16 kb. The transcription start points of the mamAB, mamDC, and mms operons were mapped at 22 bp, 52 bp, and 58 bp upstream of the first genes of the operons, respectively. Identified -10 and -35 boxes of the P(mamAB), P(mamDC), and P(mms) promoters showed high similarity to the canonical sigma(70) recognition sequence. The transcription of magnetosome genes was further studied in response to iron and oxygen. Transcripts of magnetosome genes were detected by RT-PCR both in magnetic cells grown microaerobically under iron-sufficient conditions and in nonmagnetic cells grown either aerobically or with iron limitation. The presence of transcripts was found to be independent of the growth phase. Further results from partial RNA microarrays targeting the putative magnetosome transcriptome of M. gryphiswaldense and real-time RT-PCR experiments indicated differences in expression levels depending on growth conditions. The expression of the mam and mms genes was down-regulated in nonmagnetic cells under iron limitation and, to a lesser extent, during aerobic growth compared to that in magnetite-forming cells grown microaerobically under iron-sufficient conditions.
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