Analysis of expression and interaction of ubiquitin-related proteins expressed in plant male tissue.

Abstract

Ubiquitin is a critical signal molecule for various life process such as DNA repair and endocytosis, in addition to protein degradation by 26S proteasome. The protein network involved in protein ubiquitination is estimated to be changed spatiotemporally, however, there is less information about ubiquitin-related proteins in reproductive cell development. We identified ubiquitin-related proteins from plant male tissue by proteomic approach. We are now focusing on the identified proteins, which are expressed in pollen and mutually interacting.