Affordable Access

Publisher Website

An isoform of Arabidopsis myosin XI interacts with small GTPases in its C-terminal tail region

Authors
Journal
Journal of Experimental Botany
0022-0957
Publisher
Oxford University Press
Publication Date
Volume
59
Issue
13
Identifiers
DOI: 10.1093/jxb/ern202
Keywords
  • Research Papers

Abstract

Myosin XI, a class of myosins expressed in plants is believed to be responsible for cytoplasmic streaming and the translocation of organelles and vesicles. To gain further insight into the translocation of organelles and vesicles by myosin XI, an isoform of Arabidopsis myosin XI, MYA2, was chosen and its role in peroxisome targeting was examined. Using the yeast two-hybrid screening method, two small GTPases, AtRabD1 and AtRabC2a, were identified as factors that interact with the C-terminal tail region of MYA2. Both recombinant AtRabs tagged with His bound to the recombinant C-terminal tail region of MYA2 tagged with GST in a GTP-dependent manner. Furthermore, AtRabC2a was localized on peroxisomes, when its CFP-tagged form was expressed transiently in protoplasts prepared from Arabidopsis leaf tissue. It is suggested that MYA2 targets the peroxisome through an interaction with AtRabC2a.

There are no comments yet on this publication. Be the first to share your thoughts.