摘要:
DX-890 inhibits elastase. DX-890 can be attached a single polyethylene glycol moiety. The polyethylene glycol is at least 18 kDa in molecular weight and is attached to the polypeptide by a single covalent bond to the N-terminus of the polypeptide.
摘要:
A polypeptide or multimeric polypeptide construct having the ability to bind to cMet or a complex comprising cMet and HGF, and methods for use are disclosed.
摘要:
Compositions comprising non-naturally occurring fibrinogen binding moieties are described, together with methods of use thereof, e.g., for detecting or isolating fibrinogen molecules in a solution, for blood circulation imaging, and for linking therapeutics or other molecules to fibrinogen. Preferred binding peptides having a high affinity for fibrinogen are particularly disclosed.
摘要:
A eukaryotic expression vector capable of displaying a multi-chain polypeptide on the surface of a host cell is provided, such that the biological activity the multi-chain polypeptide is exhibited at the surface of the host cell. Such a vector allows for the display of complex biologically active polypeptides, e.g., biologically active multi-chain polypeptides such as immunoglobulin Fab fragments. The present invention describes and enables the successful display of a multi-chain polypeptide on the surface of a eukaryotic host cell. Preferred vectors are described for expressing the chains of a multi-chain polypeptide in a host cell separately and independently (e.g., under separate vector control elements, and/or on separate expression vectors, thus forming a matched vector set). The use of such matched vector sets provides flexibility and versatility in the generation of eukaryotic display libraries, for example the ability to generate and to display multi-chain polypeptides by combining and recombining vectors that express variegations of the individual chains of a multi-chain polypeptide. Entire repertoires of novel chain combinations can be devised using such vector sets.
摘要:
Novel enterokinase cleavage sequences are provided. Also disclosed are methods for the rapid isolation of a protein of interest present in a fusion protein construct including a novel enterokinase cleavage sequence of the present invention and a ligand recognition sequence for capturing the fusion construct on a solid substrate. Preferred embodiments of the present invention show rates of cleavage up to thirty times that of the known enterokinase cleavage substrate (Asp)4-Lys-Ile.
摘要:
Novel small proteins which bind elastase or cathepsin G have been identified. These are useful as inhibitors of excessive elastase or cathepsin G activity in patients.