
Recombinant Coronavirus 2019 Spike Receptor Binding Domain (318-542 a.a.) by ProSpec Bio is a recombinant antigen expressed in E. coli (aa 318–542, 6xHis tag, 25.7 kDa, >95% pure), supplied as a solution. Sizes: 100 µg (sars-057), 0.5 mg (sars-057-1), 1 mg (sars-057-2). Available from MBP, a registered vendor at leading US research institutions.


