Clade A recombinant nef - protein, expressed as His - tag fusion protein in E. Coli using expression vector pET24 and purified using Ni -
agarose columns
Clade C recombinant nef protein, expressed as His - tag fusion protein in E. coli using expression vector pET24 and purified using Ni -
agarose columns.
Clade B recombinant Nef protein, expressed as a His - tag fusion protein in E. coli using expression vector pET24 and purified using Ni -
agarose columns.