2019-nCoV (COVID-19) S protein RBD, Fc Tag (MALS verified) 2019-nCoV (COVID-19) S protein RBD, Fc Tag (MALS verified) (SPD-C5255) is expressed from human 293 cells (HEK293). It contains AA Arg 319 - Phe 541 (Accession QHD43416.1). This protein car G1 1 * 100 µG