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Literature summary for extracted from

  • Hwang, S.G.; Lin, N.C.; Hsiao, Y.Y.; Kuo, C.H.; Chang, P.F.; Deng, W.L.; Chiang, M.H.; Shen, H.L.; Chen, C.Y.; Cheng, W.H.
    The Arabidopsis short-chain dehydrogenase/reductase 3, an abscisic acid deficient 2 homolog, is involved in plant defense responses but not in ABA biosynthesis (2012), Plant Physiol. Biochem., 51, 63-73.
    View publication on PubMed


Cloned (Comment) Organism
gene ABA2, encodes a short-chain dehydrogenase/reductase1 (SDR1) that catalyzes the multistep conversion of xanthoxin to abscisic aldehyde during abscisic acid biosynthesis in Arabidopsis thalian, genotyping Arabidopsis thaliana

Protein Variants

Protein Variants Comment Organism
additional information generation of aba2 mutants. The pABA2::SDR3 transgene fails to complement the aba2 mutant phenotype, and transgenic plants show the same levels of ABA as the aba2 mutants, phenotype, overview Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
xanthoxin + NAD+ Arabidopsis thaliana multistep conversion abscisic aldehyde + NADH + H+


Organism UniProt Comment Textmining
Arabidopsis thaliana Q9SCU0 gene ABA2

Source Tissue

Source Tissue Comment Organism Textmining
additional information homologous AtSDR3 and AtABA2 have different spatial and temporal expression patterns Arabidopsis thaliana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
xanthoxin + NAD+ multistep conversion Arabidopsis thaliana abscisic aldehyde + NADH + H+


Synonyms Comment Organism
Arabidopsis thaliana
short-chain dehydrogenase/reductase1
Arabidopsis thaliana


Cofactor Comment Organism Structure
Arabidopsis thaliana

General Information

General Information Comment Organism
malfunction the aba2 mutant displays less seed dormancy, glucose insensitivity, small plat size, early flowering, and wiltness, no complementation by expression of AtSDR3, enotype, overview Arabidopsis thaliana
additional information comparative expression analysis of three AtSDR genes and their amino acid sequence alignment, overview Arabidopsis thaliana