Pea GH3 acyl acid amidosynthetase conjugates IAA to proteins in immature seeds of Pisum sativum L.–A new perspective on formation of high-molecular weight …
M Ostrowski, A Ciarkowska - Journal of Plant Physiology, 2021 - Elsevier
Abstract Gretchen Hagen 3 (GH3) acyl acid amidosynthetases are encoded by early auxin-
responsive genes and catalyze an ATP-dependent biosynthesis of IAA-amino acid
conjugates. An amide conjugate of IAA, indole-3-acetyl-aspartate (IAA-aspartate, IAA-Asp),
is a predominant form of bound auxin in immature seeds of pea. However, there is some
evidence that IAA is also able to form high molecular weight amide conjugates with proteins
in pea and other plant species. In this short study we report that recombinant PsGH3 IAA …
responsive genes and catalyze an ATP-dependent biosynthesis of IAA-amino acid
conjugates. An amide conjugate of IAA, indole-3-acetyl-aspartate (IAA-aspartate, IAA-Asp),
is a predominant form of bound auxin in immature seeds of pea. However, there is some
evidence that IAA is also able to form high molecular weight amide conjugates with proteins
in pea and other plant species. In this short study we report that recombinant PsGH3 IAA …
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