Our finding that COVID-19 patients recognise RBM436-507 and smaller peptides within this sequence is in agreement with a report from 2020 (17) showing that infected subjects produced antibodies to multiple sequences, such as S412-431 and S446-465, that overlap ACE2 contact residues, and S432-451 and S475-494, that are adjacent to critical residues contacted by ACE2, all contained within RBM436-507. The gene discussed is ACE2; the disease is COVID-19.