Type-B Response Regulators Display Overlapping Expression Patterns in Arabidopsis1

From: Plant Physiology | Date: June 1, 2004| Author: | Copyright information

Two-component signaling systems, involving His kinases, His-containing phosphotransfer proteins, and response regulators, have been implicated in plant responses to hormones and environmental factors. Genomic analysis of Arabidopsis supports the existence of 22 response regulators (ARRs) that can be divided into at least two distinct groups designated type-A and type-B. Phylogeiietic analysis indicates that the type-B family is composed of one major and two minor subfamilies. The expression of the type-B ARRs was examined by using both reverse transcription-PCR and [beta]-glucuronidase fusion ...

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