Abstract: This invention pertains to the use of a novel set of tags for the immobilization and/or purification of proteins or other biological or organic molecules. The invention provides troponin C, troponin C binding peptide, and troponin I, or active fragments or analogues thereof as convenient tags and affinity ligands for immobilizing, attaching, or purifying proteins or other molecules. Methods for producing troponin-tagged molecules, such as recombinant fusion proteins, are described. Methods for preparing a troponin affinity matrix that is capable of specifically binding its cognate ligand in the presence of calcium, and methods for using such a matrix to purify troponin-tagged molecules are also described.

Abstract: This invention pertains to the use of a novel set of tags for the immobilization and/or purification of proteins or other biological or organic molecules. The invention provides troponin C, troponin C binding peptide, and troponin I, or active fragments or analogues thereof as convenient tags and affinity ligands for immobilizing, attaching, or purifying proteins or other molecules. Methods for producing troponin-tagged molecules, such as recombinant fusion proteins, are described. Methods for preparing a troponin affinity matrix that is capable of specifically binding its cognate ligand in the presence of calcium, and methods for using such a matrix to purify troponin-tagged molecules are also described.

Abstract: Peptide antigens which are immunoreactive with sera from individuals infected with hepatitis C virus (HCV) are disclosed. Several of the antigens are immunologically reactive with antibodies present in individuals identified as having chronic and acute HCV infection. The antigens are useful in diagnostic methods for detecting HCV infection in humans. Also disclosed are corresponding genomic-fragment clones containing polynucleotides encoding the open reading frame sequences for the antigenic peptides.

Abstract: Peptide antigens which are immunoreactive with sera from individuals infected with hepatitis C virus (HCV) are disclosed. Several of the antigens are immunologically reactive with antibodies present in individuals identified as having chronic and acute HCV infection. The antigens are useful in diagnostic methods for detecting HCV infection in humans. Also disclosed are corresponding genomic-fragment clones containing polynucleotides encoding the open reading frame sequences for the antigenic peptides.

Abstract: Peptide antigens which are immunoreactive with sera from individuals infected with hepatitis C virus (HCV) are disclosed. Several of the antigens are immunologically reactive with antibodies present in individuals identified as having chronic and acute HCV infection. The antigens are useful in diagnostic methods for detecting HCV infection in humans. Also disclosed are corresponding genomic-fragment clones containing polynucleotides encoding the open reading frame sequences for the antigenic peptides.

Abstract: Peptide antigens which are immunoreactive with sera from individuals infected with hepatitis C virus (HCV) are disclosed. Several of the antigens are immunologically reactive with antibodies present in individuals identified as having chronic and acute HCV infection. The antigens are useful in diagnostic methods for detecting HCV infection in humans. Also disclosed are corresponding genomic-fragment clones containing polynucleotides encoding the open reading frame sequences for the antigenic peptides.

Abstract: Peptide antigens which are immunoreactive with sera from individuals infected with hepatitis C virus (HCV) are disclosed. Several of the antigens are immunologically reactive with antibodies present in individuals identified as having chronic and acute HCV infection. The antigens are useful in diagnostic methods for detecting HCV infection in humans. Also disclosed are corresponding genomic-fragment clones containing polynucleotides encoding the open reading frame sequences for the antigenic peptides.

Abstract: A method and materials are provided for replication of virulent Treponema pallidum in tissue culture, employing a modified Eagle's minimum essential medium, wherein said in vitro cultivated T. pallidum can be utilized as a source of relatively pure organisms, free of host tissue, for the preparation of a vaccine against syphilis and as a source of organisms for use in specific immunological tests for syphilis.