Source:http://linkedlifedata.com/resource/umls/id/C0242607
MSH: An amorphous region of electron dense material in the cytoplasm from which the MICROTUBULES polymerization is nucleated. The pericentriolar region of the CENTROSOME which surrounds the CENTRIOLES is an example.,GO: A cytoplasmic structure that can catalyze gamma-tubulin-dependent microtubule nucleation and that can anchor microtubules by interacting with their minus ends, plus ends or sides. [ISBN:0815316194, PMID:17245416]