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Glycylation essential to keep sperm swimming in a straight line, shows study
One essential component of each eukaryotic cell is the cytoskeleton. Microtubules, tiny tubes consisting of a protein called tubulin, are part of this skeleton of cells. Cilia and flagella, which are antenna-like structures that protrude from most of the cells in our body, contain many microtubules. An example of flagell is the sperm tail, which is essential for male fertility and thus for sexual reproduction.
The flagellum has to beat in a very precise and coordinated manner to allow progressive swimming of the sperm. Failure to do so can lead to male infertility. Researchers at the Institut Curie in Paris, the Max Planck Institute of Molecular Cell Biology and Genetics (MPI-CBG) in Dresden, the center of advanced european studies and research (caesar) in Bonn together with the University of Bonn, the Institut Cochin in Paris and the Human Technopole in Milan now show that one particular enzymatic modific