Disclosed is a composition of matter comprising an isolated polypeptide, which is a peripherally-restricted Na
V
1.7 inhibitor. In some disclosed embodiments, the isolated polypeptide is an inhibitor of Na
V
1.7. Other embodiments are conjugated embodiments of the inventive composition of matter and pharmaceutical compositions containing the inventive composition of matter. Isolated nucleic acids encoding some embodiments of inventive polypeptides and expression vectors, and recombinant host cells containing them are disclosed. A method of treating or preventing pain is also disclosed.
The invention relates to a method of making a polypeptide comprising an orthogonal functional group, said orthogonal functional group being comprised by an aliphatic amino acid or amino acid derivative, said method comprising providing a host cell; providing a nucleic acid encoding the polypeptide of interest; providing a tRNA-tRNA synthetase pair orthogonal to said host cell; adding an amino acid or amino acid derivative comprising the orthogonal functional group of interest, wherein said amino acid or amino acid derivative is a substrate for said orthogonal tRNA synthetase, wherein said amino acid or amino acid derivative has an aliphatic carbon backbone; and incubating to allow incorporation of said amino acid or amino acid derivative into the polypeptide of interest via the orthogonal tRNA-tRNA synthetase pair. The invention also relates to certain amino acids, and to polypeptides comprising same.
Several different pyrrolysine analogs are disclosed in this application. Those analogs have distinct chemical and biophysical properties. Some analogs are useful in chemical ligation applications. Methods of making and using are also disclosed.
The invention provides modified apelin polypeptides having increased stability, circulating half-life, and/or potency relative to the native apelin-13 polypeptide. Compositions comprising the modified apelin polypeptides and methods of using the polypeptides for treating cardiac disorders, such as heart failure, are also disclosed.
The application is directed to APJ receptor agonist analogs having increased stability relative to the wild type apelin-13 and methods of using the agonist analogs. The analogs can be used, inter alia, in cardiac disorders such as heart failure.