J 2008

The Arabidopsis thaliana response regulator ARR22 is a putative AHP phospho-histidine phosphatase expressed in the chalaza of developing seeds

HORÁK, Jakub, Christopher GREFEN, Kenneth W BERENDZEN, Achim HAHN, York-Dieter STIERHOF et. al.

Basic information

Original name

The Arabidopsis thaliana response regulator ARR22 is a putative AHP phospho-histidine phosphatase expressed in the chalaza of developing seeds

Authors

HORÁK, Jakub (203 Czech Republic, guarantor), Christopher GREFEN (276 Germany), Kenneth W BERENDZEN (840 United States of America), Achim HAHN (276 Germany), York-Dieter STIERHOF (276 Germany), Bettina STADELHOFER (276 Germany), Mark STAHL (276 Germany), Csaba KONCZ (348 Hungary) and Klaus HARTER (276 Germany)

Edition

BMC Plant Biology, London, BioMed Central Ltd. 2008, 1471-2229

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

Genetics and molecular biology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.030

RIV identification code

RIV/00216224:14310/08:00035255

Organization unit

Faculty of Science

UT WoS

000258377800001

Keywords (in Czech)

signální dráhy; dvoukomponentní systémy; ARR, chalaza, šešule, Arabidopsi, protein-proteinové interakce

Keywords in English

two-component system; response regulator; ARR; signal transduction; chalaza; silique; Arabidopsis; protein-protein interaction

Tags

International impact, Reviewed
Změněno: 9/4/2010 13:09, Mgr. Jakub Horák, Dr. rer. nat.

Abstract

V originále

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.

Links

MSM0021622415, plan (intention)
Name: Molekulární podstata buněčných a tkáňových regulací
Investor: Ministry of Education, Youth and Sports of the CR, Molecular basis of cell and tissue regulations