摘要:
The present invention provides DNA constructs, genetically engineered host cells, and methods for identifying inhibitors of amyloid precursor protein (APP) processing. The methods provide for the convenient identification, in a single assay, of inhibitors of β-secretase and γ-secretase as well as other forms of APP processing. The methods rely on fusion proteins of APP and transcription factors in which APP processing releases the transcription factors, allowing the transcription factors to activate transcription of a reporter gene. Inhibitors are identified as substances that block or diminish transcription factor release from the fusion protein, thereby causing a diminution of reporter gene readout.
摘要:
Provided herein are methods of treating Zellweger spectrum disorder (ZSD) in a subject in need thereof or improving peroxisome assembly in a cell in need thereof comprising administering to the subject a therapeutically effective amount of Compounds of Formula I or II.
摘要:
A method for determining the level of tyrosine kinase activity in a biological sample is disclosed. The method employs an anti-phosphotyrosine antibody as both the capture agent and the detecting agent. The detecting antibody is labeled with a lanthanide ion, such as europium, as the signal generating entity. The method is particularly well suited to high throughput screening, for example, for compounds which modulate tyrosine kinase activity.
摘要:
Provided herein are methods of treating Zellweger spectrum disorder (ZSD) in a subject in need thereof or improving peroxisome assembly in a cell in need thereof comprising administering to the subject a therapeutically effective amount of Compounds of Formula I or II.
摘要:
The invention is a method for detecting a reaction product which signals the presence of a reaction product inducer such as an enzyme. The method enables the recognition of epitopes that form the basis of a detection strategy without the need for specific antibodies to the epitope. In the method, a directly or indirectly labeled modular domain and a biotinylated form of the cognate peptide ligand are used as the basis for a measurable interaction. The peptide ligand can be masked by modifications through, for example, phosphorylation of the Ser or Thr residue, or extension of the amino acid sequence beyond the C-terminal Val. Because the masked residues are critical to binding of the labeled modular domain, masking of at least one of the residues prevents binding. Upon treatment of the masked residue by the appropriate enzyme, (e.g., treatment of the phosphorylated residue with a phosphatase enzyme, or treatment of the extended residue with a protease enzyme, the peptide is converted to the original unmasked ligand that is capable of binding to the labeled modular domain and forming a measurable complex.
摘要:
A method for determining the level of tyrosine kinase activity in a biological sample is disclosed. The method employs an anti-phosphotyrosine antibody as both the capture agent and the detecting agent. The detecting antibody is labeled with a fluorescent label, for instance, Cy5, Cy5.5 or Cy7 or a lanthanide ion, such as europium, as the signal generating entity. The method is particularly well suited to high throughput screening, for example, for compounds which modulate tyrosine kinase activity.
摘要:
A reagent is described for incorporating phosphorylation sites into compounds, particularly into proteins and peptides. The reagent has the structure A—B—C wherein A is a moiety that is specifically reactive with a reactive side chain in the compound, B is a linking moiety, and C is a peptide sequence that contains a kinase substrate.
摘要:
A homogeneous high throughput assay is described which screens compounds for enzyme inhibition, or receptor or other target binding. Inhibition (or binding) by the library compounds causes a change in the amount of an optically detectable label that is bound to suspendable cells or solid supports. The amounts of label bound to individual cells or solid supports are microscopically determined, and compared with the amount of label that is not bound to individual cells or solid supports. The degree of inhibition or binding is determined using this data. Confocal microscopy, and subsequent data analysis, allow the assay to be carried out without any separation step, and provide for high throughput screening of very small assay volumes using very small amounts of test compound.
摘要:
Compounds that selectively inhibit inappropriate kinase activities and methods for their preparation are disclosed. In one embodiment, the compounds are represented by Formula I, As selective inhibitors of inappropriate kinase activities, the compounds of the present invention are useful in the treatment of conditions associated with such activity, including, but not limited to, inflammatory and autoimmune responses, diabetes, asthma, psoriasis, inflammatory bowel disease, transplantation rejection, and tumor metastasis. Also disclosed are methods of inhibiting inappropriate kinase activities and methods of treating conditions associated with such activities.