Literature summary for 2.3.2.27 extracted from

Prasad, M.E.; Schofield, A.; Lyzenga, W.; Liu, H.; Stone, S.L.
Arabidopsis RING E3 ligase XBAT32 regulates lateral root production through its role in ethylene biosynthesis (2010), Plant Physiol., 153, 1587-1596.

Search for more literature for 2.3.2.27

Organism

Organism	UniProt	Comment	Textmining
Arabidopsis thaliana	Q6NLQ8	-	-

Source Tissue

Source Tissue	Comment	Organism	Textmining

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine + [ACS4]-L-lysine	ACS4 i.e. aminocyclopropane-1-carboxylic acid synthase 4	Arabidopsis thaliana	[E2 ubiquitin-conjugating enzyme]-L-cysteine + N6-ubiquitinyl-[ACS4]-L-lysine	-	?
S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine + [ACS7]-L-lysine	ACS4 i.e. aminocyclopropane-1-carboxylic acid synthase 7	Arabidopsis thaliana	[E2 ubiquitin-conjugating enzyme]-L-cysteine + N6-ubiquitinyl-[ACS7]-L-lysine	-	?

Synonyms

Synonyms	Comment	Organism
Xbat32	-	Arabidopsis thaliana

General Information

General Information	Comment	Organism
physiological function	RING E3 Ligase Xbat32 mutants produce significantly more ethylene than wildtype plants and inhibition of ethylene biosynthesis or perception significantly increases Xbat32 lateral root production. Xbat32 interacts with the ethylene biosynthesis enzymes aminocyclopropane-1-carboxylic acid synthases ACS4 and ACS7 in yeast-two-hybrid assays and may negatively regulate ethylene biosynthesis by modulating the abundance of ACS proteins. Loss of Xbat32 may promote the stabilization of ACSs and lead to increased ethylene synthesis and suppression of lateral root formation. Auxin treatments only partially rescue the lateral root defect of Xbat32 mutants, but they completely restore wild-type levels of Xbat32 lateral root production when coupled with ethylene inhibition. Abscisic acid stimulates rather than inhibits mutant Xbat32 lateral root formation, and abscisic acid acts synergistically with auxin to promote mutant Xbat32 lateral root production	Arabidopsis thaliana

Use of this online version of BRENDA is free under the CC BY 4.0 license. See terms of use for full details.

Release 2023.1 (January 2023)