The scaffold protein RACK1 regulates root growth and gravitropic response by recruiting PINOID to phosphorylate the auxin efflux transporter PIN‐FORMED2

2025/02/06 by Shujuan Zhang, Qi Liao, Jiale Li +5 · 1 voice
Agricultural and Biological Sciences · #Plant Molecular Biology Research #Plant nutrient uptake and metabolism #Plant Stress Responses and Tolerance

paper · pdf · doi:10.1111/jipb.13858

Abstract

The scaffolding protein RACK1 is involved in polar auxin transport and signaling. It binds to PINOID and PIN-FORMED2, enhancing their interaction and phosphorylation-dependent auxin efflux. Knocking down RACK1 genes impairs auxin-related processes such as root growth and gravitropic response.

Discussions

• More #free #PlantScience? We thought you'd never ask! Get a sneak peek at this remarkable Brief Communication by Zhang et al. that reveals how the scaffold #protein RACK1 regulates #root #growth and [bsky, 7 points, 0 comments]

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