A characterization of recombinant Arabidopsis FRIABLE1 (FRB1) reveals robust rhamnogalacturonan-I rhamnosyltransferase activity and critical catalytic residues - Kayleigh J. Robichaux; Madison N. Blea; Robert A. Amos; Chin Huang; Debra Mohnen; Ian S. Wallace (Journal of Biological Chemistry, 2026)