Structural predictions for SeR and GRLMR homodimers were generated through AlphaFold2-multimer (AF2). LocalColabFold was used in conjunction with the MMseqs 54 server to rapidly prepare a multiple sequence alignment. Remaining calculations were performed on local machinery. With respect to calculation configuration, Template and Amber modes were selected to supply AF2 with template structural models to aid in prediction (PDB entries 3DJJ, 3DK9, 4GRT, 5VDN, 5V36, 6DU7, 6N7F, 6N7F, 2R9Z, 6B4O, 1GEU, 2RAB, 2EQ6, 2EQ8, 2X8C, 7B02, 3QFA, 3EAN, and 4KPR). Final predicted structures were subjected to a molecular mechanics energy minimization step with Amber to refine bond geometry.