8M urea, 20mM Tris-HCl pH 8.0, 10mM b-mercaptoethanol.
Sterile filtered colorless clear solution.
Greater than 95.0% as determined by SDS-PAGE.
Immunoreactive with HIV positive serum.
HIV-1 gp41 Long HRP although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.