49 results about "Amphipathic helix" patented technology

The invention relates to genetic approaches to supply nucleotide sequences encoding modified forms of the native forms of apolipoprotein A-I (ApoA-I): mature ApoA-I, preproApoA-I and proApoA-I; including native ApoA-I modified to contain ApoA-I agonists, peptides which mimic the activity of ApoA-I; ApoA-I superagonists, peptides which exceed the activity of native ApoA-I; and modified native ApoA-I having one or more amphipathic helices replaced by the nucleotide sequences of one or more ApoA-I agonists; for the treatment of disorders associated with dyslipoproteinemia, including cardiovascular disease, atherosclerosis, restenosis, hyperlipidemia, and other disorders such as septic shock.

This invention provides novel peptides that ameliorate one or more symptoms of atherosclerosis. The peptides are highly stable and readily administered via an oral route. In addition, the peptides inhibit osteoporosis. When administered with a statin, the peptides enhance the activity of the statin permitting the statin to be used at significantly lower dosages. In certain embodiments, the peptides range in length from about 10 up to about 30 amino acids, comprise at least one class A amphipathic helix, and protect a phospholipid against oxidation by an oxidizing agent.

This invention provides novel peptides that ameliorate one or more symptoms of atherosclerosis and/or other pathologies characterized by an inflammatory response. In certain embodiment, the peptides resemble a G* amphipathic helix of apolipoprotein J. The peptides are highly stable and readily administered via an oral route.

This invention provides novel active agents (e.g. peptides, small organic molecules, amino acid pairs, etc.) peptides that ameliorate one or more symptoms of atherosclerosis and/or other pathologies characterized by an inflammatory response. In certain embodiment, the peptides resemble a G* amphipathic helix of apolipoprotein J. The agents are highly stable and readily administered via an oral route.

This invention provides novel peptides, and other agents, that ameliorate one or more symptoms of atherosclerosis and/or other pathologies characterized by an inflammatory response. In certain embodiment, the peptides resemble a G* amphipathic helix of apolipoprotein J. The peptides are highly stable and readily administered via an oral route.

Systems and methods are provided for producing a protein of interest that is typically not amenable to expression in soluble form in in vitro expression systems. In some aspects, the invention provides methods of synthesizing proteins using in vitro protein synthesis systems that include a scaffold protein such as apolipoprotein or an amphipathic alpha helix containing (“AAHC”) protein, in which higher yields of soluble protein are produced than in the absence of the scaffold protein. The scaffold proteins may be provided in an in vitro protein synthesis system associated with lipid or not associated with lipid. The scaffold protein may be provided as a protein per se or may be encoded by a nucleic acid template and co-expressed with the protein of interest. The invention also provides compositions and kits for synthesis of proteins in soluble form, in which the compositions and kits include cell extracts for protein expression and isolation.

This invention provides novel active agents (e.g. peptides, small organic molecules, amino acid pairs, etc.) peptides that ameliorate one or more symptoms of atherosclerosis and/or other pathologies characterized by an inflammatory response. In certain embodiment, the peptides resemble a G* amphipathic helix of apolipoprotein J. The agents are highly stable and readily administered via an oral route.

An amphipathic helix at the approximate N-terminus of Hepatitis C virus (HCV) nonstructural proteins mediates the association of these proteins with cytoplasmic membranes in infected cells. This association is essential for replication. Thus, assessing the ability of compounds or protocols to disrupt the association of such helices with cytoplasmic membranes permits identification of compounds and protocols which are useful in the treatment of HCV infection. Also useful in the invention are mimics, or function-disrupting ligands, of an amphipathic helix of the nonstructural proteins described herein and antibodies and fragments thereof immunoreactive with said helix.

The invention relates to an amphiphilic alpha helix self-assembling peptide derived from SEQ ID NO:1 and an application of the amphiphilic alpha helix self-assembling peptide in protein production and purification. When the amphiphilic alpha helix self-assembling peptide and target protein are subjected to fusion expression, the amphiphilic alpha helix self-assembling peptide can induce the fusion protein to form active aggregate in cell, by comparing with polypeptide in SEQ ID NO: 1, the spatial distribution of the formed active aggregate in the cell is changed, a host cell growth state is improved, and fusion protein output is increased.

Screening methods are provided for identifying pharmacologic inhibitors of HCV amphipathic helix (AH) function, which inhibitors are useful in the prevention and treatment of HCV infection. Also provided are compounds useful in the inhibition of viral replication. The methods of the invention are based on the unexpected discovery that the presence of an AH, e.g. an AH of an HCV polypeptide, causes an increase in the apparent diameter of the vesicles. The methods of the invention provide for addition of AH peptides to lipid vesicles, for example in a high-throughput format; which addition may be performed in the absence or presence of a candidate pharmacologic agent. The change in apparent vesicle size is measured, and compared to control samples. An increase in vesicle size or aggregation is indicative of AH function being present; and a lack of increase is indicative that the AH function is absent or has been inhibited by a test agent.

This invention provides novel active agents (e.g. peptides, small organic molecules, amino acid pairs, etc.) peptides that ameliorate one or more symptoms of eye disease and/or other pathologies characterized by an inflammatory response. In certain embodiment, the peptides resemble a G* amphipathic helix of apolipoprotein J. The agents are highly stable and readily administered via an oral route or via intraocular injection.