Arabidopsis Phosphodiesterase Activity Data with Abscisic Acid Binding Measurements

A 287.5 KB document by Mateusz Kwiatkowski details in vitro measurements of abscisic acid (ABA) binding to an Arabidopsis thaliana phosphodiesterase (PDE). The data shows ABA concentration-dependent modulation of 3’,5’-cAMP hydrolysis, with Vmax values of 1.19 pmole min⁻¹ μg⁻¹ without ABA, increasing to 1.58 at 2 nM ABA, and decreasing to 0.75 at 50 nM ABA. This research, shared on figshare in April 2026, suggests a functional link between ABA signaling, cAMP, and potassium flux.

Use Cases

• Modeling enzyme kinetics based on the reported ABA concentration-dependent, biphasic activity response.
• Studying hormone-receptor interactions based on the described ABA-binding site similarity to canonical receptors.
• Investigating cross-talk between signaling pathways based on the proposed link between cAMP signaling and K⁺ flux.

Strengths

• Includes specific kinetic measurements (Vmax values) for enzyme activity under different ABA concentrations.
• Document is shared under a permissive CC-BY-4.0 license, allowing reuse with attribution.
• The description provides a detailed biochemical context for the reported findings.

Limitations

• The dataset is a 287.5 KB DOCX file, which is a very small and likely text-based document rather than a structured data table.
• Row count and column-level documentation are absent; data structure must be inferred after download.
• The description metadata is limited; actual data quality and format require manual inspection.

Provenance

Source

figshare

Collection Method

Likely contains in vitro biochemical assay results as described in the accompanying research.

Time Range

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Freshness

Last updated 2026-04-20 05:22:57.

Geography

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