Genetic Dissection of the mamAB and mms6 Operons Reveals a Gene Set Essential for Magnetosome Biogenesis in Magnetospirillum gryphiswaldense
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چکیده
منابع مشابه
Genetic dissection of the mamAB and mms6 operons reveals a gene set essential for magnetosome biogenesis in Magnetospirillum gryphiswaldense.
Biosynthesis of bacterial magnetosomes, which are intracellular membrane-enclosed, nanosized magnetic crystals, is controlled by a set of >30 specific genes. In Magnetospirillum gryphiswaldense, these are clustered mostly within a large conserved genomic magnetosome island (MAI) comprising the mms6, mamGFDC, mamAB, and mamXY operons. Here, we demonstrate that the five previously uncharacterized...
متن کاملGenetic dissection of the mamAB and mms 6 operons reveals a gene set
Genetic dissection of the mamAB and mms6 operons reveals a gene set essential for 1 magnetosome biogenesis in Magnetospirillum gryphiswaldense 2 3 4 5 Anna Lohße, Sarah Borg, Oliver Raschdorf, Isabel Kolinko, Éva 6 Tompa, Mihály Pósfai, Damien Faivre, Jens Baumgartner, and Dirk 7 Schüler* 8 9 10 11 12 13 14 1 Ludwig-Maximilians-Universität München, Dept. Biologie I, Mikrobiologie, 15 LMU Biozen...
متن کاملTranscriptional organization and regulation of magnetosome operons in Magnetospirillum gryphiswaldense.
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...
متن کاملFunctional Analysis of the Magnetosome Island in Magnetospirillum gryphiswaldense: The mamAB Operon Is Sufficient for Magnetite Biomineralization
Bacterial magnetosomes are membrane-enveloped, nanometer-sized crystals of magnetite, which serve for magnetotactic navigation. All genes implicated in the synthesis of these organelles are located in a conserved genomic magnetosome island (MAI). We performed a comprehensive bioinformatic, proteomic and genetic analysis of the MAI in Magnetospirillum gryphiswaldense. By the construction of larg...
متن کاملA novel role for Crp in controlling magnetosome biosynthesis in Magnetospirillum gryphiswaldense MSR-1
Magnetotactic bacteria (MTB) are specialized microorganisms that synthesize intracellular magnetite particles called magnetosomes. Although many studies have focused on the mechanism of magnetosome synthesis, it remains unclear how these structures are formed. Recent reports have suggested that magnetosome formation is energy dependent. To investigate the relationship between magnetosome format...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 2014
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.01716-14