The final preparation of gag and gag/env proteins in 8 M urea reacted with sheep anti-HTLV-III p24 gag antibodies and acquired immune deficiency syndrome (AIDS) patient sera.
Sequence variation within neutralizing epitopes of the envelope glycoprotein B of human cytomegalovirus: comparison of isolates from renal transplant recipients and AIDS patients.
This hybrid protein displays selective toxicity toward cells expressing the HIV envelope glycoprotein and thus represents a promising novel therapeutic agent for the treatment of AIDS.
A chimeric simian-human immunodeficiency virus (SHIV-4) containing the tat, rev, vpu, and env genes of HIV type 1 (HIV-1) in a genetic background of SIVmac239 was used to develop an animal model in which a primate lentivirus expressing the HIV-1 envelope glycoprotein caused acquired immune deficiency syndrome (AIDS) in macaques.
Within the AIDS virus env gene, the surface glycoprotein region is more liable to vary than is the transmembrane region; unexpectedly, however, this liability is not a characteristic feature of the AIDS virus because it is more prominent in other retroviruses including members of the HTLV/BLV family.
Here, we sequenced the gp120 coding region of nine full-length dual-tropic (R5X4) env genes cloned directly from autopsy brain and spleen tissue from an AIDS patient with severe HAD.
Follicular dendritic cells (FDC) from axillary lymphoid tissue of a patient with acquired immune deficiency syndrome (AIDS) were analyzed for the presence of gag and env proteins and env mRNA of human immunodeficiency virus type-1 (HIV-1), both in a purified FDC suspension and on frozen sections.
Immunogenic, broadly reactive epitopes of the HIV-1 envelope glycoprotein could serve as important targets of the adaptive humoral immune response in natural infection and, potentially, as components of an acquired immune deficiency syndrome vaccine.
All polypeptides containing the ENV(80) sequences were strongly reactive with antibodies present in sera from AIDS virus-infected individuals, but not with control sera.
Envelope glycoprotein purified from culture fluids was immunogenic in laboratory animals in both native and PAGE-purified forms and was reactive with AIDS patient sera in immunoassays.