Abstract: The invention relates to a new tissue plasminogen activator which has strong activity for converting plasminogen into plasmin that degrades the fibrin network of blood clots to form soluble products and therefore is useful as a thrombolytic agent. The invention also relates to a DNA sequence encoding the amino acid sequence for the tissue plasminogen activator, to a process for producing the plasminogen activator, and to a pharmaceutical composition comprising the new tissue plasminogen activator.

Abstract: Whole cell or cell-free test systems for screening and identifying compounds that modulate or alter Cyclin E activity. Whole cell assays measure the G1 phase of cells in the presence or absence of the test compound. Additional whole cell or cell-free assays measure binding of cyclin E to a cell division kinase, measure cyclin E activity directly, or measure the cell division kinase activity directly in the presence or absence of the test compound.

Abstract: This invention concerns recombinant RNA molecules comprising a recognition sequence for the binding of an RNA-directed RNA polymerase, a sequence for the initiation of product strand synthesis and a heterologous sequence of interest inserted at a specific site in the internal region of the recombinant molecule. Such recombinant RNA molecules are capable of serving as a template for the synthesis of complementary single-stranded molecules by RNA-directed RNA polymerase. The product molecules so formed are also capable of serving as a template for the synthesis of additional copies of the original recombinant RNA molecule. In a preferred embodiment of the invention Q.beta. replicase is used as the RNA-directed RNA polymerase.

Abstract: The invention provides methods and compositions relating to the Tax-response Complex-1 (TRC-1) a transcription complex associated with disease, particularly HTLV infection. TRC-1 is composed of novel forms of JunB and a member of a novel protein family called small nuclear factors or SNFs. The expression of these compounds are shown to correlate with cell lineage, activation and infection. SNFs and T-cell specific forms of JunB, find particular use in screening assays for agents or lead compounds for agents useful in the diagnosis, prognosis or treatment of disease, particularly HTLV infection. Nucleic acids encoding SNFs, and SNF-specific binding agents find use in diagnosis and as commercial reagents for the biopharmaceutical industry.