Cell biologist discovers two proteins are key to proper transfer of genetic material
A significant discovery by UC Santa Cruz cell biologist Needhi Bhalla has uncovered the pivotal roles of two proteins—PCH-2 and HIM-3—in ensuring the accurate transfer of genetic material during the formation of eggs and sperm. This process, known as meiotic crossover recombination, is essential for shuffling genetic material between chromosomes, thereby maintaining genetic diversity and preventing disorders such as miscarriages, infertility, birth defects, and cancer. +++++++++++`-````````````````````
In their study, Bhalla's team utilized the roundworm Caenorhabditis elegans to investigate the functions of PCH-2 and HIM-3. They discovered that PCH-2 regulates the number and distribution of crossover events by initially limiting potential crossover sites and later ensuring that at least some crossovers occur, a process known as crossover assurance. HIM-3, on the other hand, assists in organizing chromosomes during meiosis. Together, these proteins fine-tune the crossover process, ensuring both efficiency and accuracy.
This research not only enhances our understanding of genetic inheritance but also holds promise for developing molecular diagnostics to assess risks related to infertility and recurrent miscarriages, potentially guiding reproductive interventions.
#CellBiology
#MolecularBiology
#Genetics
#CellResearch
#Microscopy
#StemCells
#CellDivision
#Meiosis
#ProteinBiology
#LifeSciences
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