Mad Liberals (@mad_liberals)

Coronavirus bioweapon production method March 11, 2020 #FauciEmails Page 2286 Hello Anthony , This is how the virus was created . Intervirion Fusion. HIV-luc(ACE2) (500 ng ofp24) was mixed with 1,000ng of p24 of HIV-gfp particles incorporating ASLV-A envelope, SARS-CoVS protein, or both envelopes in PBS at 4 °C for 30 min to allow binding. Samples were raised to 37°C for 15 min to allow for conformational rearrangements. Virions were adjusted to the desired pH with 0.1 M citric acid. PBS, TPCK-trypsin (final concentration 10~tg/ml), CTSL , cathepsin B (CTSB) (final concentrations 2 ~tg/ml) or CTSL buffer alone was then added . Recombinant CTSL (R &D Systems) was preactivated by incubation for 15 min at 10 µg/ml in 50 mM Mes, pH 6.0, on ice. Recombinant CTSB (R &D Systems) was preactivated in 25 mMMes, 5 mM OTT, pH 5.0, for 30min at 25°C. After a 10-min incubation at 25°C, proteolysis was halted by the addition of 300 µ1 of DMEMIO containing leupept in (25 µg/ml) and STI (75 µg/ml). Virions were then incubated at 37°C for 30 min to allow membrane fusion. 100 µl of the virion mix ture was added in quadruplicate to HeLa-Tva cells pretreated for 1h with leupeptin (20 ~tg/ml). The cells were spin-infected and incubated at 37°C for 5h