Fig. 1.

Abscisic acid assay, drought stress responsive RNA-binding proteome (RBPome) and systems classification of drought stress response RNA-binding proteins in Arabidopsis thaliana. a Abscisic acid assay performed using the Phytodetek® ABA Immunoassay kit showing significant (p-value ≤0.05) increases in ABA after drought stress treatment on Arabidopsis cell suspension cultures. b Distribution of the RBPome before and after treatments at 1 h and 4 h. c Classification of drought stress responsive proteins based on three categories: category 1 proteins linked to RNA biology, category II ribosomal proteins and category III proteins with unknown RNA biology or RNA-binding domains. The bars are standard deviation error bars signifying whether a protein is present in at least two biological replicates. d-e Gene ontology (GO) molecular function (d) and biological processes (e) enrichment analyses of the significantly enriched (150 proteins) RBPs linked to drought stress responses