[1] Scripps Res Inst, Dept Immunol, La Jolla, CA 92037 USA
[2] Scripps Res Inst, Dept Mol Biol, La Jolla, CA 92037 USA
[3] Harvard Univ, New England Reg Primate Res Ctr, Sch Med, Div Microbiol, Southborough, MA 01772 USA
[4] Univ Penn, Dept Pathol, Philadelphia, PA 19104 USA
[5] Int AIDS Vaccine Initiat, New York, NY USA
[6] NIH, Vaccine Res Ctr, Bethesda, MD 20892 USA
[7] Cornell Univ, Weill Med Ctr, Dept Microbiol & Immunol, New York, NY USA
[8] Harvard Univ, Sch Med, Dana Farber Canc Inst, Dept Canc Immunol & AIDS, Boston, MA 02115 USA
[9] Scripps Res Inst, Skaggs Inst Chem Biol, La Jolla, CA 92037 USA