Bacteria of the species Magnetospirillum gryphiswaldense are unicellular organisms that can align their locomotion precisely with the Earth's magnetic field. They owe this ability to tiny magnetite crystals called magnetosomes. In the spiral-shaped bacterial cell, the crystals form a stable, straight chain that acts like a compass needle. Microbiologists at the University of Bayreuth, together with research partners at the Max Planck Institute for Biochemistry in Martinsried and at LMU Munich, have now discovered that the shape and position of the magnetosome chain are largely determined by the protein MamY. In the journal Nature Microbiology they now present their latest findings.
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