...M. C. Mangione; Kathleen L. Gould ABSTRACT Animal cells, amoebas and yeast divide using a force-generating, actin- and myosin-based contractile ring or ‘cytokinetic ring’ (CR). Despite intensive research, questions remain about the spatial organization of CR components, the mechanism by which...

... role in amoebae and in mammals; mutant amoebae with abnormally high Ras activity resemble tumour cells in their increased capacity for growth using nutrients ingested through macropinocytosis. This Commentary takes a functional and evolutionary perspective to highlight progress in understanding and use...

...Taeck J. Jeon; Kwang W. Jeon The expression of genes for S-adenosylmethionine synthetase (SAMS), which catalyzes the synthesis of S-adenosylmethionine (AdoMet), a major methyl donor in cells, was studied in symbiont-free (D) and symbiont-bearing (xD) amoeba strains to determine the effect...

... and structure of the pore complex, as well as the cytosolic factors that mediate transport. In this regard, we investigated the transport process in amoebae ( Amoeba proteus and Chaos carolinensis ), primitive cells that would be expected to have less stringent regulatory requirements than more complex...

...Mireille Bof; Françoise Brénot; Carlos Gonzalez; Gérard Klein; Jean-Baptiste Martin; Michel Satre ABSTRACT Methylene diphosphonate is taken up in Dictyostelium discoideum amoebae by fluid-phase pinocytosis, and it inhibits growth through the production of methylene analogs of adenosine triphosphate...

...Carlos Gonzalez; Michel Satre ABSTRACT Cycloheximide, an inhibitor of protein synthesis, inhibited endocytosis pathways in the vegetative amoebae of the cellular slime mold Dictyostelium discoideum . Half-maximal inhibition of fluid-phase pinocytosis in nutrient medium or in buffer occurred at 0.08...