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Gene : TAA1 A. thaliana

DB identifier  ? AT1G70560 Secondary Identifier  ? locus:2026826
Name  ? tryptophan aminotransferase of Arabidopsis 1 Brief Description  tryptophan aminotransferase of Arabidopsis 1
TAIR Computational Description  tryptophan aminotransferase of Arabidopsis 1;(source:Araport11)
TAIR Curator Summary  TAA1 is involved in the shade-induced production of indole-3-pyruvate (IPA), a precursor to IAA, a biologically active auxin. It is also involved in regulating many aspects of plant growth and development from embryogenesis to flower formation and plays a role in ethylene-mediated signaling. This enzyme can catalyze the formation of IPA from L-tryptophan. Though L-Trp is expected to be the preferred substrate in vivo, TAA1 also acts as an aminotransferase using L-Phe, L-Tyr, L-Leu, L-Ala, L-Met, and L-Gln. Lines carrying mutations in this gene are unaffected by auxin transporter inhibitor NPA. Double mutant analysis and exogenous auxin treatment suggest that this gene is required for auxin signaling during lateral root and root meristem development. The activity of TAA1 can be controlled by phosphorylation of residue T101, which, when phosphorylated results in loss of activity. TAA1 is a target of TMK4.
TAIR Short Description  tryptophan aminotransferase of Arabidopsis 1
TAIR Aliases  CKRC1, SAV3, TAA1, TIR2, WEI8

6 Gene Rifs

1 Organism

32 Publications

0 Synonyms


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6 Child Features

0 Cross References

1 Downstream Intergenic Region

0 Located Features

1 Upstream Intergenic Region


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1 Proteins


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7 Data Sets