| HORÁK, Jakub, Christopher GREFEN, Kenneth W BERENDZEN, Achim HAHN, York-Dieter STIERHOF, Bettina STADELHOFER, Mark STAHL, Csaba KONCZ and Klaus HARTER. The Arabidopsis thaliana response regulator ARR22 is a putative AHP phospho-histidine phosphatase expressed in the chalaza of developing seeds. BMC Plant Biology. London: BioMed Central Ltd., 2008, vol. 8, No 77, 18 pp. ISSN 1471-2229. |
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@article{825591,
author = {Horák, Jakub and Grefen, Christopher and Berendzen, Kenneth W and Hahn, Achim and Stierhof, YorkandDieter and Stadelhofer, Bettina and Stahl, Mark and Koncz, Csaba and Harter, Klaus},
article_location = {London},
article_number = {77},
keywords = {two-component system; response regulator; ARR; signal transduction; chalaza; silique; Arabidopsis; protein-protein interaction},
language = {eng},
issn = {1471-2229},
journal = {BMC Plant Biology},
title = {The Arabidopsis thaliana response regulator ARR22 is a putative AHP phospho-histidine phosphatase expressed in the chalaza of developing seeds},
url = {http://www.biomedcentral.com/1471-2229/8/77},
volume = {8},
year = {2008}
}
TY - JOUR
ID - 825591
AU - Horák, Jakub - Grefen, Christopher - Berendzen, Kenneth W - Hahn, Achim - Stierhof, York-Dieter - Stadelhofer, Bettina - Stahl, Mark - Koncz, Csaba - Harter, Klaus
PY - 2008
TI - The Arabidopsis thaliana response regulator ARR22 is a putative AHP phospho-histidine phosphatase expressed in the chalaza of developing seeds
JF - BMC Plant Biology
VL - 8
IS - 77
PB - BioMed Central Ltd.
SN - 14712229
KW - two-component system
KW - response regulator
KW - ARR
KW - signal transduction
KW - chalaza
KW - silique
KW - Arabidopsis
KW - protein-protein interaction
UR - http://www.biomedcentral.com/1471-2229/8/77
N2 - The Arabidopsis response regulator 22 (ARR22) is one of two members of a recently defined novel group of two-component system (TCS) elements. We present evidence that ARR22 is a preferentially cytoplasmic protein, exclusively expressed in the chalaza of developing seeds. ARR22 specifically interacts with AHP2, AHP3 and AHP5 in yeast and living plant cells. Two new loss-of-function alleles, arr22-2 and arr22-3, were isolated and characterized. With respect to their morphology and metabolite status, no significant difference in the developing seeds of the arr22 mutants was observed compared to wild type. The genetic complementation of the arr22 mutants with a genomic ARR22 fragment resulted in plants (arr22/gARR22) with a pleiotropic phenotype of different penetrance. The phenotype of the arr22/gARR22 plants was comparable to that of multiple ahk, ahp and B-type arr mutants. Our results favor the model that ARR22 acts as a phospho-histidine phosphatase on specific AHPs in the cytoplasm of Arabidopsis chalaza cells.
ER -
HORÁK, Jakub, Christopher GREFEN, Kenneth W BERENDZEN, Achim HAHN, York-Dieter STIERHOF, Bettina STADELHOFER, Mark STAHL, Csaba KONCZ and Klaus HARTER. The Arabidopsis thaliana response regulator ARR22 is a putative AHP phospho-histidine phosphatase expressed in the chalaza of developing seeds. \textit{BMC Plant Biology}. London: BioMed Central Ltd., 2008, vol.~8, No~77, 18 pp. ISSN~1471-2229.
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