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Updated: Jul 11, 2026

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Orthogonal Protein Purification Facilitated by a Small Bispecific Affinity Tag
Published on: January 16, 2012
An affinity probe for isolation of abscisic acid-binding proteins
James M Nyangulu1, Marek M Galka, Ashok Jadhav
1Plant Biotechnology Institute, National Research Council of Canada, 110 Gymnasium Place, Saskatoon, Saskatchewan S7N 0W9, Canada.
Journal of the American Chemical Society
|February 11, 2005
Summary
Researchers developed a new affinity probe to isolate plant hormone abscisic acid (ABA) receptors. This probe preserves key structural features and successfully binds to known ABA-binding proteins, aiding in their identification.
Area of Science:
- Plant biology
- Biochemistry
- Molecular biology
Background:
- Abscisic acid (ABA) is a crucial plant hormone regulating various physiological processes.
- Identifying ABA receptors is essential for understanding plant hormone signaling pathways.
Purpose of the Study:
- To develop and validate an affinity probe for the isolation of abscisic acid (ABA)-binding proteins.
- To ensure the probe retains the structural integrity necessary for binding ABA.
Main Methods:
- Design and synthesis of an affinity probe targeting ABA.
- Validation of the probe's binding affinity to known ABA-binding proteins.
Main Results:
- A novel affinity probe for ABA receptor isolation was successfully developed.
- The probe maintained structural features critical for biological activity.
- The developed probe demonstrated effective binding to established ABA-binding proteins.
Conclusions:
- The new affinity probe is a valuable tool for identifying and isolating ABA receptors.
- This advancement facilitates further research into ABA signaling mechanisms in plants.

