| Literature DB >> 8539621 |
H Kuwayama1, M Ecke, G Gerisch, P J Van Haastert.
Abstract
Conventional myosin functions universally as a generator of motive force in eukaryotic cells. Analysis of mutants of the microorganism Dictyostelium discoideum revealed that myosin also provides resistance against high external osmolarities. An osmo-induced increase of intracellular guanosine 3',5'-monophosphate was shown to mediate phosphorylation of three threonine residues on the myosin tail, which caused a relocalization of myosin required to resist osmotic stress. This redistribution of myosin allowed cells to adopt a spherical shape and may provide physical strength to withstand extensive cell shrinkage in high osmolarities.Entities:
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Year: 1996 PMID: 8539621 DOI: 10.1126/science.271.5246.207
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728