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An Arabidopsis protein that interacts with the cytokinin‐inducible response regulator, ARR4, implicated in the His‐Asp phosphorylay signal transduction
Author(s) -
Yamada Hisami,
Hanaki Naoto,
Imamura Aya,
Ueguchi Chiharu,
Mizuno Takeshi
Publication year - 1998
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/s0014-5793(98)01103-x
Subject(s) - regulator , cytokinin , arabidopsis , response regulator , signal transduction , microbiology and biotechnology , chemistry , biology , biochemistry , gene , bacterial protein , mutant , auxin
Previously, Arabidopsis thaliana was shown to possess a set of response regulators (ARR‐series), which are implicated in the prokaryotic type of signal transduction mechanism, generally referred to as the His‐Asp phosphorylay. Among them, ARR4 is a typical phospho‐accepting response regulator, whose expression was recently demonstrated to be rapidly induced by a cytokinin‐treatment of the plant. To gain insight into the presumed His‐Asp phosphotransfer signaling mechanism as well as the role of ARR4 in this higher plant, in this study we adopt the widely used yeast two‐hybrid system, and report the identification of an Arabidopsis protein that has an ability to interact physically with the cytokinin‐inducible ARR4 response regulator.