摘要:
Peptides that bind to the interleukin-1 type I receptor (IL-1RtI) can be used to assay the amount of IL-1R, or an IL-1R agonist or antagonist, in a sample and comprise a sequence of amino acids selected from the group consisting of (1) WXXXGZ.sub.1 W where Z.sub.1 is L, I, A, or Q; (2) XXQZ.sub.5 YZ.sub.6 XX where Z.sub.5 is P or Aze where Aze is azetidine; and Z.sub.6 is S, A, V, or L; and (3) Z.sub.23 NZ.sub.24 SZ.sub.25 Z.sub.26 Z.sub.27 Z.sub.28 Z.sub.29 Z.sub.30 L where Z.sub.23 is D or Y; Z.sub.24 is D or S; Z.sub.25 is S or W; Z.sub.26 is S or Y; Z.sub.27 is D or V; Z.sub.28 is S or W; Z.sub.29 is F or L; and Z.sub.30 is D or L; and where each amino acid is indicated by standard one letter abbreviation; and each X can be selected from any one of the 20 genetically coded L-amino acids or the stereoisomeric D-amino acids. Also provided are peptides which bind to the IL-1RtI, which are 11 to 40 amino acids in length, which comprise the core sequence of amino acids:Z.sub.31 XWZ.sub.32 Z.sub.33 Z.sub.34 Z.sub.35 Z.sub.36 QZ.sub.37 Z.sub.38where each letter represents the standard one letter abbreviation for an amino acid or an analog thereof; X is selected from the group of natural or unnatural amino acids; Z.sub.37 is a natural or unnatural cyclic amino acid; Z.sub.31 is selected from phenylalanine and acetylated phenylalanine; Z.sub.32 is a natural or unnatural amino acid; Z.sub.33 is selected from proline and pipecolic acid; Z.sub.34 is selected from glycine, d-alanine, d-valine, sarcosine and aminoisobutyric acid; Z.sub.35 is a natural or unnatural amino acid and Z.sub.36 is selected from tyrosine, phosphotyrosine, phenylalanine and tryptophan; and Z.sub.38 is selected from tyrosinamide and substituted tyrosinamide.
摘要:
Described are peptides and peptide mimetics that bind to and the IL-5 receptor. Such peptides and peptide mimetics are useful in methods for treating disorders that involve improper production of or response to IL-5 and or the production and accumulation of eosinophils, such as asthma, as well as in diagnostic methods employing labeled peptides and peptide mimetics.
摘要:
Methods and compositions are described for immobilizing anti-ligands, such as antibodies or antigens, hormones or hormone receptors, oligonucleotides, and polysaccharides on surfaces of solid substrates for various uses. The methods provide surfaces covered with caged binding members which comprise protecting groups capable of being removed upon application of a suitable energy source. Spatially addressed irradiation of predefined regions on the surface permits immobilization of anti-ligands at the activated regions on the surface. Cycles of irradiation on different regions of the surface and immobilization of different anti-ligands allows formation of an immobilized matrix of anti-ligands at defined sites on the surface. The immobilized matrix of anti-ligands permits simultaneous screenings of a liquid sample for ligands having high affinities for certain anti-ligands of the matrix. A preferred embodiment of the invention involves attaching photoactivatable biotin derivatives to a surface. Photolytic activation of the biotin derivatives forms biotin analogs having strong binding affinity for avidin. Biotinylated anti-ligands can be immobilized on activated regions of the surface previously treated with avidin.
摘要:
Chimeric G-protein linked receptors are constructed which retain ligand binding specificity yet gain the ability to elevate intracellular free calcium as a result of agonist binding. This easily assayed function is provided by the insertion of or replacement with sequences substantially homologous to the i3 loop of a second G-protein-linked receptor. Such receptors are employed, for example, in methods of screening for compounds capable of acting as agonists or antagonists of G-protein-linked receptors.
摘要:
Methods of using prodrugs of GABA analogs and pharmaceutical compositions thereof to treat migraine, fibromyalgia, amyotrophic lateral sclerosis, irritable bowel syndrome, social phobia, Parkinson's disease, asthma, cough, or chronic obstructive pulmonary disease, and pharmaceutical compositions of prodrugs of GABA analogs useful in treating migraine, fibromyalgia, amyotrophic lateral sclerosis, irritable bowel syndrome, social phobia, Parkinson's disease, asthma, cough, or chronic obstructive pulmonary disease are disclosed.
摘要:
Disclosed herein are methods of using prodrugs of GABA analogs and pharmaceutical compositions thereof to treat and/or prevent urinary incontinence in humans, and pharmaceutical compositions of prodrugs of GABA analogs useful in treating and/or preventing urinary incontinence.
摘要:
The invention provides exemplary systems, methods, and apparatus for distinctly allocating liquids containing chemical compositions or compounds to known locations in an organized manner so that assays may be performed on the compositions, or so that the chemical compositions may be combined with other distinct chemical compositions or reagents prior to evaluation. In one exemplary embodiment, the invention provides a fluid transfer system which comprises a donor member having a plurality of separate regions. At least some of the regions contain at least one chemical composition, with each chemical composition being distinct from any other chemical composition in the donor member. An acceptor member is also provided and includes a plurality of defined locations which are each adapted to receive a liquid medium. A transfer mechanism is provided to systematically transfer at least some of the chemical compositions from the donor member regions to at least some of the acceptor member locations such that the locale of each transferred chemical composition within the acceptor member is known. Further, each of the acceptor member locations has a volume that is less than about 500 .mu.l. In this way, a large number of acceptor member locations may be provided within a single system to efficiently transfer, in parallel fashion, large numbers of chemical compositions from the donor member to the acceptor member where evaluation or further processing of the chemical compositions may proceed.
摘要:
Methods and compositions are described for immobilizing anti-ligands, such as antibodies or antigens, hormones or hormone receptors, oligonucleotides, and polysaccharides on surfaces of solid substrates for various uses. The methods provide surfaces covered with caged binding members which comprise protecting groups capable of being removed upon application of a suitable energy source. Spatially addressed irradiation of predefined regions on the surface permits immobilization of anti-ligands at the activated regions on the surface. Cycles of irradiation on different regions of the surface and immobilization of different anti-ligands allows formation of an immobilized matrix of anti-ligands at defined sites on the surface. The immobilized matrix of anti-ligands permits simultaneous screenings of a liquid sample for ligands having high affinities for certain anti-ligands of the matrix. A preferred embodiment of the invention involves attaching photoactivatable biotin derivatives to a surface. Photolytic activation of the biotin derivatives forms biotin analogs having strong binding affinity for avidin. Biotinylated anti-ligands can be immobilized on activated regions of the surface previously treated with avidin.
摘要:
Compounds that provide for sustained systemic concentrations of GABA analogs following oral administration to animals are disclosed. Pharmaceutical compositions including, and methods using, such compounds are also disclosed.
摘要:
Compounds that provide for sustained systemic concentrations of GABA analogs following oral administration to animals are disclosed. Pharmaceutical compositions including, and methods using, such compounds are also disclosed.