摘要:
A random peptide library constructed by transforming host cells with a collection of recombinant vectors that encode a fusion protein comprised of a DNA binding protein and a random peptide and also encode a binding site for the DNA binding protein can be used to screen for novel ligands. The screening method results in the formation of a complex comprising the fusion protein bound to a receptor through the random peptide ligand and to the recombinant DNA vector through the DNA binding protein.
摘要:
Peptides of 10 to 40 or more amino acid residues in length and having the sequence X3X4X5GPX6TWX7X8 (SEQ ID NO:) where each amino acid is indicated by standard one letter abbreviation; X3 is C; X4 is R, H, L, or W; X5 is M, F, or I; X6 is independently selected from any one of the 20 genetically coded L-amino acids; X7 is D, E, I, L, or V; and X8 is C, which bind and activate the erythropoietin receptor (EPO-R) or otherwise act as an EPO agonist, and methods for their use.
摘要:
Phosphonate esters can be synthesized in high yields by condensations of alcohols with methyl phosphonates followed by selective demethylation. The reaction is general, relatively insensitive to steric constraints of hindered phosphonic acids, and can also be carried out on a solid support to synthesize large collections of compounds to screen for pharmacological activity.
摘要:
The present invention provides methods and appartus for sequencing, fingerprinting and mapping biological polymers, particularly polynucleotides. The methods make use of a plurality of positionally distinct sequence specific recognition reagents, such as polynucleotides. The apparatus employs a substrate comprising positionally distinct sequence specific recognition reagents, such as polynucleotides, which are preferably localized at high densities. The methods and apparatus of the present invention can be used for determining the sequence of polynucleotides, mapping polynucleotides, and developing polynucleotide fingerprints. Polynucleotide fingerprints can be used for identifying individuals, tissue samples, pathological conditions, genetic diseases, infectious diseases, and other applications. Polynucleotide fingerprints can also be used for classification of bioligical samples, including taxonomy, and to characterize their sources. The invention also provides polynucleotide mapping, fingerprinting, and sequencing as valuable laboratory research tools for use in biological investigations.
摘要:
A method and library for determining the sequence of monomers in a polymer which is complementary to a receptor. The method provides for formation of pooled (6) and separate (10, 12) products. Separate products are subjected only to subsequent pooled coupling steps. Each pooled product is subsequently divided for formation of pooled and separate products. The resulting polymer library includes groups of polymer products. A first group of products (42) is used to identify the monomer at a first location in a polymer that is complementary to a receptor. A second group of products (44) is used to identify the monomer at a second location in a polymer that is complementary to a receptor.
摘要:
A general stochastic method for synthesizing random oligomers can be used to synthesize compounds to screen for desired properties. The use of identification tags on the oligomers facilitates identification of oligomers with desired properties.
摘要:
The invention provides chips of immobilized probes, and methods employing the chips, for comparing a reference polynucleotide sequence of known sequence with a target sequence showing substantial similarity with the reference sequence, but differing in the presence of e.g., mutations.