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Using phragmoplastin-interacting protein 1 (PhrIP1) as bait, we isolated an Arabidopsis cDNA encoding Ran2, a small Ras-like GTP-binding protein. The interaction between PhrIP1 and Ran2 was confirmed by an in vitro protein–protein interaction assay with purified Ran2 and PhrIP1. The plant Ran2 shares high sequence homology, 78 and 86% at the amino acid level, with human Ran/TC4 and C.elegans Ran,...
We have characterized 4 of the 16 members of the family of dynamin-related proteins (DRP) in Arabidopsis. Three members, DRP1A (previously referred as ADL1), DRP1C and DRP1E, belong to the largest group of phragmoplastin-like proteins. DRP2A (ADL6) is one of the two members that contain a pleckstrin homology (PH) domain and a proline-rich (PR) motif, characteristics of animal dynamins. All four proteins...
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