CEF1, Influenza Matrix Protein M1 (58-66) is an epitope derived from the matrix protein of the influenza A virus[1].
[1]. Petrova GV, et al. Cross-reactive responses to modified M1??-?? peptides by CD8? T cells that use noncanonical BV genes can describe unknown repertoires. Eur J Immunol. 2012 Nov;42(11):3001-8.
















