PMID-sentid Pub_year Sent_text comp_official_name comp_offset protein_name organism prot_offset 26961657-6 2016 PRK6 interacted with pollen-expressed ROPGEFs (Rho of plant guanine nucleotide-exchange factors), which are important for pollen tube growth through activation of the signalling switch Rho GTPase ROP1 (refs 7, 8). Guanine Nucleotides 60-78 Leucine-rich repeat protein kinase family protein Arabidopsis thaliana 0-4