1887

Abstract

In the mutant BEN210 of several -tubulins are detectable. 1-tubulin is unique to the myxamoeba, 2-tubulin is unique to the plasmodium, and the mutant 1-210 tubulin encoded by the allele is present in both cell types. In order to analyse the subcellular distribution of the 1-210 polypeptide, we prepared cytoskeletons from myxamoebae and mitotic spindles from plasmodia, and examined the tubulin polypeptide composition of these microtubular organelles by two-dimensional gel electrophoresis and immunoblotting. The results show that the 1-210 tubulin is present in microtubules of both the cytoskeleton and the intranuclear mitotic spindle. Thus a single -tubulin gene product can participate in multiple microtubular organelles in distinct cellular compartments.

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1989-03-01
2024-04-26
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