Abstract: The present invention provides polypeptides derived from the coronaviruses (CoVs) Spike protein (S) characterized by high affinity and specificity the S receptor and its neutralizing antibodies. The invention further provides compositions and vaccines, and vaccine-based therapies targeting CoVs, and SARS and MERS viruses in particular.

Abstract: The present invention provides polypeptides derived from the coronaviruses (CoVs) Spike protein (S) characterized by high affinity and specificity the S receptor and its neutralizing antibodies. The invention further provides compositions and vaccines, and vaccine-based therapies targeting CoVs, and SARS and MERS viruses in particular.

Abstract: Provided are polypeptides derived from the coronaviruses (CoVs) Spike protein (S) characterized by high affinity and specificity the S receptor and its neutralizing antibodies. Further provided are compositions and vaccines, and vaccine-based therapies targeting CoVs, and SARS and MERS viruses in particular.

Abstract: Provided are polypeptides derived from the coronaviruses (CoVs) Spike protein (S) characterized by high affinity and specificity the S receptor and its neutralizing antibodies. Further provided are compositions and vaccines, and vaccine-based therapies targeting CoVs, and SARS and MERS viruses in particular.

Abstract: Provided are polypeptides derived from the coronaviruses (CoVs) Spike protein (S) characterized by high affinity and specificity the S receptor and its neutralizing antibodies. Further provided are compositions and vaccines, and vaccine-based therapies targeting CoVs, and SARS and MERS viruses in particular.

Abstract: The present invention relates to the identification of antigenic and immunogenic peptide-based mimicry of mannose-containing cell-wall compounds characterizing mycobacterial infectious agents, such as Mycobacterium tuberculosis. Amino acid molecules which are mimotopes of mannosylated lipoglycans, such as lipoarabinomannan (ManLAM), including at least one of the following characteristics: (a) being capable of binding to ManLAM binding antibodies; (b) being capable of eliciting production of ManLAM binding antibodies, are provided. Also diagnostic methods for diagnosing mycobacterial infections and methods of vaccinating subjects against such infections. The diagnostic and vaccination methods employ the provided amino acid molecules. Accordingly, a diagnostic kit and a vaccine for executing the aforementioned methods are provided.

Abstract: The present invention provides novel recombinant protein and peptide inhibitors of NS3 serine protease of the hepatitis C virus (HCV). The invention discloses analogs, fragments and derivatives of the identified inhibitors, nucleic acids encoding same, and methods of use thereof for the treatment of HCV infection. The invention further provides novel constructs and methods for the screening of protease inhibitors in vivo, using a recombinant engineered reporter protein that is cleavable by a protease, co-expressed with the recombinant protease in bacteria.

Abstract: The present invention relates to the identification of antigenic and immunogenic peptide-based mimicry of mannose-containing cell-wall compounds characterizing mycobacterial infectious agents, such as Mycobacterium tuberculosis. Amino acid molecules which are mimotopes of mannosylated lipoglycans, such as lipoarabinomannan (ManLAM), including at least one of the following characteristics: (a) being capable of binding to ManLAM binding antibodies; (b) being capable of eliciting production of ManLAM binding antibodies, are provided. Also diagnostic methods for diagnosing mycobacterial infections and methods of vaccinating subjects against such infections. The diagnostic and vaccination methods employ the provided amino acid molecules. Accordingly, a diagnostic kit and a vaccine for executing the aforementioned methods are provided.

Abstract: The structure of conformational, discontinuous binding surfaces that associate with a binding molecule, preferably the epitopes of monoclonal antibodies (mAbs) may be discovered. The binding molecule is used to select specific peptides from a peptide library that, in turn, are used as a binding surface (epitope) defining database that is applied via a novel computer algorithm to analyze the crystalline-structure of the original binding surface (antigen). An antigenic epitope-mimetic that is recognized by its original mAb may be reconstituted based on the segments of the epitope identified in the prediction. The basic elements of the binding domain on gp120 that is recognized by broadly neutralizing antibody b12 are disclosed, as in their use in making vaccines for preventing or treating HIV.

Abstract: Filamentous bacteriophages are particularly efficient for the expression and display of combinatorial random peptides. Two phage proteins are often employed for peptide display: the infectivity protein, pIII and the major coat protein, pVIII. The use of pVIII typically requires the expression of two pVIII genes: the wild type and the recombinant pVIII genes to generate mosaic phages. “Type 88” vectors contain two pVIII genes in one phage genome. A novel “type 88” expression vector has been rationally designed and constructed, which can be used to express recombinant peptides as pVIII chimeric proteins in mosaic bacteriophages. This vector is not only genetically stable but also of high copy number and produces high titers of recombinant phages.

Abstract: The structure of conformational, discontinuous binding surfaces that associate with a binding molecule, preferably the epitopes of monoclonal antibodies (mAbs) may be discovered. The binding molecule is used to select specific peptides from a peptide library that, in turn, are used as a binding surface (epitope) defining database that is applied via a novel computer algorithm to analyze the crystalline-structure of the original binding surface (antigen). An antigenic epitope-mimetic that is recognized by its original mAb may be reconstituted based on the segments of the epitope identified in the prediction. The basic elements of the binding domain on gp120 that is recognized by broadly neutralizing antibody b12 are disclosed, as in their use in making vaccines for preventing or treating HIV.