Abstract
Immunoblot analysis with antibodies prepared against highly purified recombinant truncated kinesin-like proteins, KatB(5–249) and KatC(207–754), encoded by the katB and katC genes of Arabidopsis thaliana revealed the presence of a kinesin-like polypeptide, termed KatB/C, in cultured tobacco BY-2 cells. The KatB/C polypeptide cosedimented with microtubules in the presence of a nonhydrolyzable ATP analogue and was released from microtubules in the presence of ATP, both of which are characteristics of kinesin proteins. The amount of KatB/C polypeptide in synchronous BY-2 cells increased during M phase of the cell cycle. Microtubule-based structures present in cells at M phase, such as the spindle and phragmoplast, may be the site of action of the KatB/C protein.
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Mitsui, H., Hasezawa, S., Nagata, T. et al. Cell cycle-dependent accumulation of a kinesin-like protein, KatB/C, in synchronized tobacco BY-2 cells. Plant Mol Biol 30, 177–181 (1996). https://doi.org/10.1007/BF00017812
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DOI: https://doi.org/10.1007/BF00017812