Molecular characterization of the Arabidopsis thaliana histidine kinase 1 and transitions from the multistep phosphorelay system to Ser/Thr/Tyr phosphorylation

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URI: http://hdl.handle.net/10900/75700
http://nbn-resolving.de/urn:nbn:de:bsz:21-dspace-757008
http://dx.doi.org/10.15496/publikation-17102
Dokumentart: Dissertation
Date: 2019-03-31
Language: English
Faculty: 7 Mathematisch-Naturwissenschaftliche Fakultät
Department: Biologie
Advisor: Harter, Klaus (Prof. Dr.)
Day of Oral Examination: 2017-03-24
DDC Classifikation: 000 - Computer science, information and general works
500 - Natural sciences and mathematics
570 - Life sciences; biology
580 - Plants (Botany)
Keywords: Zweikomponentensystem <Molekularbiologie> , Rezeptor , Signaltransduktion , Stress , Phänotyp , Phosphorylierung , Massenspektrometrie , Hormon
Other Keywords: osmotischer Stress
Osmosensor
AHK1
Signalweg
osmotic stress
signaling pathway
multistep phosphorelay system
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Abstract:

The Arabidopsis thaliana histidine kinase 1 (AHK1) is part of the multistep phosphorelay system in plants and involved in the adjustment of the plant to osmotic stress. The adjustment might be achieved by an AHK1-dependent transition from the multistep phosphorelay system to Ser/Thr/Tyr phosphorylation. This work shows results of the phosphoproteomic analysis of an ahk1 knock down mutant in comparison to the wildtype, an idea, how these differentially phosphorylated proteins can be connected to AHK1-dependent signaling and different phenotypes of ahk1 knock down mutants which confirm these hypotheses.

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