The spindle pole body (SPB) is the microtubule organizing center in yeast cells, functionally equivalent to the centrosome. Unlike the centrosome the SPB does not contain centrioles. The SPB organises the microtubule cytoskeleton which plays many roles in the cell. It is important for organising the spindle and thus in cell division.
Read more about Spindle Pole Body: SPB Structure in Saccharomyces Cerevisiae, SPB Duplication Pathway in Saccharomyces Cerevisiae
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