Abstract: This invention is in the field of lymphadenopathy virus. This invention relates to a diagnostic means and method to detect the presence of DNA, RNA, or antibodies of the lymphadenopathy retrovirus associated with the acquired immune deficiency syndrome or of the lymphadenopathy syndrome by the use of DNA fragments or the peptides encoded by said DNA fragments. The invention further relates to the DNA fragments, vectors comprising them, and the proteins expressed.

Abstract: This invention is in the field of lymphadenopathy virus. This invention relates to a diagnostic means and method of detecting lymphadenopathy associated virus or related viruses or DNA pro-viruses with cloned DNA sequences which are hybridizable to genomic RNA and DNA of lymphadenopathy associated virus. It further relates to the cloned DNA sequences and a process for their preparation.

Abstract: Retroviral strains of the non-M, non-O HIV-1 group, in particular a strain designated YBF30, its fragments and also its uses as a diagnostic reagent and as an immunogenic agent. The HIV-1 viruses which differ both from the M group and the O group exhibit the following characteristics: little or no serological reactivity with regard to the proteins of the M and O groups and strong serological reactivity with regard to the proteins which are derived from the strain YBF30 according to the invention or the strain CPZGAB SIV; absence of genomic amplification when using primers from the env and gag regions of the M and O HIV-1 groups; genomic amplification in the presence of primers which are derived from the YBF30 strain according to the invention; and homology of the products of the envelope gene which is greater than 70% with regard to the YBF30 strain.

Abstract: Retroviral strains of the non-M, non-O HIV-1 group, in particular a strain designated YBF30, its fragments and also its uses as a diagnostic reagent and as an immunogenic agent. The HIV-1 viruses which differ both from the M group and the O group exhibit the following characteristics: little or no serological reactivity with regard to the proteins of the M and O groups and strong serological reactivity with regard to the proteins which are derived from the strain YBF30 according to the invention or the strain CPZGAB SIV; absence of genomic amplification when using primers from the env and gag regions of the M and O HIV-1 groups; genomic amplification in the presence of primers which are derived from the YBF30 strain according to the invention; and homology of the products of the envelope gene which is greater than 70% with regard to the YBF30 strain.

Abstract: The inventors have isolated cloned cDNA encoding the RNA genome of Human Immunodeficiency Virus type 1 (HIV-1). Various clones are described, which encode different regions of the genome, including those regions encoding viral antigens or proteins. Hybridization results indicate the difference between the HIV-1 clones and those of HTLV-I and HTLV-II. The inventors have also produced a restriction map of the entire cloned genomic sequence in order to facilitate further subcloning and using the restriction fragments in other hybridization tests and in methods to express encoded sequences.

Abstract: This invention is in the field of lymphadenopathy virus. This invention relates to a diagnostic means and method of detecting lymphadenopathy associated virus or related viruses or DNA pro-viruses with cloned DNA sequences which are hybridizable to genomic RNA and DNA of lymphadenopathy associated virus. It further relates to the cloned DNA sequences and a process for their preparation.

Abstract: Retroviral strains of the non-M, non-O HIV-1 group, in particular a strain designated YBE30, its fragments and also its uses as a diagnostic reagent and as an immunogenic agent. The HIV-1 viruses which differ both from the M group and the O group exhibit the following characteristics: little or no serological reactivity with regard to the proteins of the M and O groups and strong serological reactivity with regard to the proteins which are derived from the strain YBF30 according to the invention or the strain CPZGAB SIV; absence of genomic amplification when using primers from the env and gag regions of the M and O HIV-1 groups; genomic amplification in the presence of primers which are derived from the YBF30 strain according to the invention; and homology of the products of the envelope gene which is greater than 70% with regard to the YBF30 strain.

Abstract: Retroviral strains of the non-M, non-O HIV-1 group, in particular a strain designated YBF30, its fragments and also its uses as a diagnostic reagent and as an immunogenic agent. The HIV-1 viruses which differ both from the M group and the O group exhibit the following characteristics: little or no serological reactivity with regard to the proteins of the M and O groups and strong serological reactivity with regard to the proteins which are derived from the strain YBF30 according to the invention or the strain CPZGAB SIV; absence of genomic amplification when using primers from the env and gag regions of the M and O HIV-1 groups; genomic amplification in the presence of primers which are derived from the YBF30 strain according to the invention; and homology of the products of the envelope gene which is greater than 70% with regard to the YBF30 strain.

Abstract: This invention is in the field of lymphadenopathy virus, which has been designated Human Immunodeficiency Virus Type 1 (HIV-1) to detect the presence of DNA, RNA or antibodies of the lymphadenopathy retrovirus associated with the acquired immune deficiency syndrome or of the lymphadenopathy syndrome by the use of DNA fragments or the peptides encoded by said DNA fragments. The invention further relates tot he DNA fragments, vectors comprising them and the proteins expressed.

Abstract: This invention is in the field of lymphadenopathy virus, which has been designated Human Immunodeficiency Virus Type 1 (HIV-1). This invention relates to a diagnostic means and method to detect the presence of DNA, RNA or antibodies of the lymphadenopathy retrovirus associated with the acquired immune deficiency syndrome or of the lymphadenopathy syndrome by the use of DNA fragments or the peptides encoded by said DNA fragments. The invention further relates to the DNA fragments, vectors comprising them and the proteins expressed.

Abstract: This invention is in the field of lymphadenopathy virus which has been designated Human Immunodeficiency Virus Type 1 (HIV-1). This invention relates to a diagnostic means and method to detect the presence of DNA, RNA or antibodies of the lymphadenopathy retrovirus associated with the acquired immune deficiency syndrome or of the lymphadenopathy syndrome by the use of DNA fragments or the peptides encoded by said DNA fragments. The invention further relates to the DNA fragments, vectors comprising them and the proteins expressed.

Abstract: This invention provides antibodies which bind with p12 and p18 proteins of a human immunodeficiency virus type 1 (HIV-1), antibodies which bind with immune complexes comprising p12 or p18 proteins of HIV-1, mixtures of antibodies which bind with p12, p15, p18, p25, p36, p42, and p80 proteins of HIV-1, mixtures of antibodies which bind with immune complexes comprising the HIV-1 proteins, immune complexes comprising p12 or p18 proteins of HIV-1, and methods for production of antibodies against p2 or p18 proteins of HIV-1.

Abstract: Retroviral strains of the non-M, non-O HIV-1 group, in particular a strain designated YBF30, its fragments and also its uses as a diagnostic reagent and as an immunogenic agent. The HIV-1 viruses which differ both from the M group and the O group exhibit the following characteristics: little or no serological reactivity with regard to the proteins of the M and O groups and strong serological reactivity with regard to the proteins which are derived from the strain YBF30 according to the invention or the strain CPZGAB SIV; absence of genomic amplification when using primers from the env and gag regions of the M and O HIV-1 groups; genomic amplification in the presence of primers which are derived from the YBF30 strain according to the invention; and homology of the products of the envelope gene which is greater than 70% with regard to the YBF30 strain.

Abstract: The identification, separation, purification, and propagation of the HIV-1 virus is provided. Moreover, the preparation of antigens from HIV-1 is further provided. The identification of HIV-1 involves the purification of a virus sample from lymphocytes and contacting the sample with antibodies, which bind to HIV-1 viruses, is provided. The propagation of HIV-1 virus involves infecting uninfected T lymphocytes with the virus. Moreover, the preparation of antigens from HIV-1 involves the separation of protein components of a purified HIV-1 virus under denaturing conditions.

Abstract: Retroviral strains of the non-M, non-O HIV-1 group, in particular a strain designated YBF30, its fragments and also its uses as a diagnostic reagent and as an immunogenic agent.

Abstract: Antibodies which bind with antigens of human immunodeficiency virus type 1 (HIV-1), such as Lymphadenopathy Associated Virus (LAV), are disclosed. Retroviruses associated with Acquired Immune Deficiency Syndrome (AIDS) are isolated from the sera of patients afflicted with Lymphadenopathy Syndrome (LAS) or AIDS. Viral extracts, structural proteins and other fractions of the retrovirus immunologically recognize the sera of such patients.

Abstract: The invention provides peptides which are expressed by the env gene of a non-M, non-O HIV-1 virus, in particular a strain designated YBF30. The invention also provides fragments of the peptides that including the V3 loop region and their corresponding nucleotide sequences. The invention further provides kits including diagnostic reagents containing these molecules or immunogenic compositions containing these peptides, as well as methods for screening and typing non-M, non-O HIV-1 viruses and HIV-1 viruses expressing these peptide and/or nucleotide sequences.

Abstract: The molecular cloning and characterization of a novel human retrovirus, designated lymphadenopathy-associated virus, or LAV, is disclosed. LAV was originally isolated from a patient with acquired immune deficiency syndrome (AIDS). A cloned LAV complementary DNA (cDNA) was used to screen a library of recombinant phages constructed from the genomic DNA of LAV-infected T lymphocytes. The nucleotide sequence of an insert obtained from the recombinant phage clone &lgr;J19 was ascertained through M13 shotgun cloning and the dideoxy chain termination sequencing method. The env coding region was identified and various hydrophilic peptides obtained therefrom. These peptides correspond to amino acids 551-577, 594-603, 621-630, 657-679, and 719-758 of the LAV envelope glycoprotein. These peptides should provide suitable diagnostic reagents for the detection LAV-specific antibodies and for the generation of LAV-specific immunological reagents.

Abstract: Retroviruses associated with Acquired Immune Deficiency Syndrome (AIDS), including Lymphadenopathy Associated Virus (LAV), are isolated from the sera of patients afflicted with Lymphadenopathy Syndrome (LAS) or AIDS. LAV is a Human Immunodeficiency Virus (HIV). Viral extract, structural proteins and other fractions of the retrovirus immunologically recongize the sera of such patients. Immunological reaction is used to detect antibodies that specifically bind to antigenic sites of the retrovirus in samples of body fluids from patients with AIDS or risk of AIDS.

Abstract: The invention concerns a retrovirus extract containing a p25 protein which recognizes immunologically sera of patients afflicted with lymphadenopathy syndrom (LAS) or acquired immune deficiency syndrom (AIDS). It relates to a method and kit for in vivo assay of LAS or AIDS involving contacting sera from patients to be diagnosed for such diseases with said retrovirus extract and by detecting the immunological reaction, if any.