Literature summary for 2.3.2.27 extracted from

Li, H.; Jiang, H.; Bu, Q.; Zhao, Q.; Sun, J.; Xie, Q.; Li, C.
The Arabidopsis RING finger E3 ligase RHA2b acts additively with RHA2a in regulating abscisic acid signaling and drought response (2011), Plant Physiol., 156, 550-563.

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Organism

Organism	UniProt	Comment	Textmining
Arabidopsis thaliana	Q9ZU51	-	-

Source Tissue

Source Tissue	Comment	Organism	Textmining
seed	-	Arabidopsis thaliana	-

Synonyms

Synonyms	Comment	Organism
RHA2b	-	Arabidopsis thaliana

Expression

Organism	Comment	Expression
Arabidopsis thaliana	Rha2b expression is induced by abscisic acid and drought stress	up

General Information

General Information	Comment	Organism
physiological function	RING finger E3 ligase RHA2b expression is induced by abscisic acid and overexpression of RHA2b leads to abscisic acid-associated phenotypes such as abscisic acid hypersensitivity in seed germination and seedling growth, enhanced stomatal closure, reduced water loss, and, therefore, increased drought tolerance. T-DNA insertion mutant Rha2b-1 shows abscisic acid-insensitive phenotypes and reduced drought tolerance. A Rha2a Rha2b-1 double mutant generally enhances abscisic acid insensitivity of mutant Rha2b-1 in seed germination, seedling growth, and stomatal closure, suggesting that Rha2b and Rha2a act redundantly in regulating abscisic acid responses	Arabidopsis thaliana

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Release 2023.1 (January 2023)