摘要:
A method to prepare crystalline interferon alpha suitable for aerosol formulation either for systemic or topical (inhaled) drug delivery. The bioavailable interferon is in the form of crystalline submicrometer particles having a predetermined medium diameter.
摘要:
This invention provides fragments of HCV NS3 helicase, and crystalline compositions thereof, based on subdomains of HCV helicase protein. The protein fragments are stable, soluble, and structurally sound. They can be expressed at high levels in conventional expressions systems, such as E. coli, to permit efficient, large-scale production for NMR-based screening applications and production of [2H,13C,15N]- and [13C,15N]-labeled polypeptides for structural NMR studies. Helicase fragments of the present invention are useful in the most advanced NMR techniques available, e.g., NMR-based drug discovery techniques such as SAR-by-NMR, in biological assays to discover inhibitors of HCV NS3 helicase, and to evaluate the mechanism of action and substrates for HCV NS3 helicase. Crystals of the present invention are useful for structure-based drug design studies using x-ray crystallographic techniques.
摘要:
The invention relates to the purification and crystallization of hepatitis C virus (HCV) NS3/NS4A polypeptide complex. Also, crystallization conditions for NS3/NS4A are provided. Further, the atomic coordinates for the NS3/NS4A protein are disclosed. Examples of its use for the determination of the three-dimensional atomic structures of HCV NS3/NS4A with substrate(s) or substrate analog(s) or inhibitor complexes are also provided.
摘要:
Engineered proteins for the assembly of two-dimensional and three-dimensional nanostructure assemblies. Methods for the systematic design and production of protein node structures that can be interconnected with streptavidin or streptavidin-incorporating struts to produce structures with defined dimensions and geometry. Nanostructure assemblies having utility as functional devices or as resists for the patterning of substrates. Nanostructure architectures including polygons, polyhedra, two-dimensional lattices, and three-dimensional lattices.
摘要:
The present invention relates to compositions and crystals of farnesyl protein transferase and farnesyl protein transferase in complex with substrates and inhibitors. Also disclosed are crystallization conditions for these compositions and their use for structural determination of FPT:FPP/FPP analog:peptide/inhibitor complexes.
摘要:
The present invention relates to crystalline compositions comprising farnesyl protein transferase-like polypeptides in complex with substrates and inhibitors. Also disclosed are crystallization conditions for these compositions and their use for structural determination of FPT:FPP/FPP analog: peptide/inhibitor complexes.
摘要:
Avidin-binding azo reagents which alter the spectrophotometric properties of avidin and the use of such reagents in homogeneous assays are described.
摘要:
Novel boronic acid and ester and carboxyl-modified amino acid compounds of the Formula I, which are inhibitors of trypsin-like enzymes, are disclosed:R.sup.1 --Z--CHR.sup.2 --A,where R.sup.1, Z, R.sup.2 and A are defined within.
摘要:
The present invention provides a compound having the structure: wherein R1, R2, R3, R4, and R5 are each independently H, halogen, CF3, C1-C4 alkyl, aryl or heteroaryl; X is N or CR6, wherein R6 is H, OH, or halogen; A is absent or present, and when present is B has the structure: or a pharmaceutically acceptable salt thereof.