摘要:
The present invention generally relates to engineered bacteriophages which express amyloid peptides for the modulation (e.g. increase or decrease) of protein aggregates and amyloid formation. In some embodiments, the engineered bacteriophages express anti-amyloid peptides for inhibiting protein aggregation and amyloid formation, which can be useful in the treatment and prevention of and bacterial infections and biofilms. In some embodiments, the engineered bacteriophages express amyloid peptides for promoting amyloid formation, which are useful for increasing amyloid formation such as promoting bacterial biofilms. Other aspects relate to methods to inhibit bacteria biofilms, and methods for the treatment of amyloid related disorders, e.g., Alzheimer's disease using an anti-amyloid peptide engineered bacteriophages. Other aspects of the invention relate to engineered bacteriophages to express the amyloid peptides on the bacteriophage surface and/or secrete the amyloid peptides, e.g., anti-amyloid peptides and pro-amyloid peptides, and uses thereof for modulation protein aggregates and amyloid formation.
摘要:
Using arrays of peptides derived from E. coli CsgB, peptides that seed formation of curli fibers are identified. The arrays, peptides, methods for identification thereof, and compositions and methods relating thereto, are provided.
摘要:
The present invention provides a yeast cell based system for determining factors that control the folding of amyloid proteins of diverse origins. Further the present invention provides methods of using such a system to screen for reagents that affect amyloid formation, a process that is integral to several devastating human disease including Creutzfeld-Jacob disease (CJD), fatal familial insomnia (FFI), Gertsmann-Straussler-Scheinker (GSS) syndrome, and kuru. The system of the present invention provides a rapid screening system to quickly and cheaply identify reagents that affect the folding and aggregation properties of the target protein.
摘要:
This invention relates to the identification, isolation, purification and manipulation of genetic stress response systems, and more particularly, to genes and expression products of those genes that are components of those systems. These components may be used to protect against potentially toxic stress factors. Stress factors include heat, alcohol and heavy metal ions. A family of stress protector proteins with apparent molecular weights about 100 kd, the hsp100 proteins, are an aspect of this invention. Other stress protector proteins are also within the scope of this invention to enhance or inhibit biological stress response. Applications of this invention to recombinant DNA technology, to commercial methods of food preparation and processing, and to methods of enhancing the stress response of plants and animals, are presented.
摘要:
Disclosed are methods for identifying compounds that modulate huntingtinmediated impairment of protein degradation pathways. Compounds identified by such screens can be used as candidate drugs for the treatment of prevention of polyglutamine diseases such as Huntington's Disease.
摘要:
Screening methods for identifying substances that provide therapeutic value for various diseases associated with protein misfolding are provided. Genetic and chemical screening methods are provided using a yeast system. The methods of the invention provide a rapid and cost-effective method to screen for compounds that prevent protein misfolding and/or protein fibril formation and/or protein aggregation which includes numerous neurodegenerative diseases including Parkinson's disease, Alzheimer's disease, Huntington's disease as well as non-neuronal diseases such as type 2 diabetes.
摘要:
Disclosed are yeast ectopically expressing abnormally processed proteins and methods of screening to identify compounds that modulate the function of such abnormally processed proteins in yeast. Compounds identified by such screens can be used to treat or prevent diseases associated with abnormally processed proteins or protein misfolding. Such diseases include Parkinson's Disease, Parkinson's Disease with accompanying dementia, Lewy body dementia, Alzheimer's disease with Parkinsonism, and multiple system atrophy.
摘要:
The invention relates to compounds which inhibit aggregation of proteins or peptides, or disaggregate protein aggregates, and thereby antagonize the toxic effects of such aggregates. The invention also relates to methods for using such compounds and methods for discovering compounds that inhibit protein or peptide aggregation.
摘要:
The present invention provides novel polypeptides comprising a prion-aggregation domain and a second domain; novel polynucleotides encoding such polypeptides; host cells transformed or transfected with such polynucleotides; novel fibrils with specific functionalities and unusually high chemical and thermal stability; and methods of making and using the foregoing.
摘要:
Screening methods for identifying substances that provide therapeutic value for various diseases associated with protein misfolding are provided. Genetic and chemical screening methods are provided using a yeast system. The methods of the invention provide a rapid and cost-effective method to screen for compounds that prevent protein misfolding and/or protein fibril formation and/or protein aggregation which includes numerous neurodegenerative diseases including Parkinson's disease, Alzheimer's disease, Huntington's disease as well as non-neuronal diseases such as type 2 diabetes.