Article
Expansion of the cell plate in plant cytokinesis requires a kinesin-like protein/MAPKKK complex.
Cell - 5 Apr 2002
Nishihama Ryuichi, Soyano Takashi, Ishikawa Masaki, Araki Satoshi, Tanaka Hirokazu, Asada Tetsuhiro, Irie Kenji, Ito Mayumi, Terada Mizuya, Banno Hiroharu, Yamazaki Yoshiko, Machida Yasunori
Abstract excerpt
The tobacco mitogen-activated protein kinase kinase kinase NPK1 regulates lateral expansion of the cell plate at cytokinesis. Here, we show that the kinesin-like proteins NACK1 and NACK2 act as activators of NPK1. Biochemical analysis suggests that direct binding of NACK1 to NPK1 stimulates kinase activity. NACK1 is accumulated specifically in M phase and colocalized with NPK1 at the phragmoplast equator....
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