High affinity mutants of nuclear factor-interleukin 6 and methods of use therefor
First Claim
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1. An isolated polypeptide comprising an NF-IL6 tryptic core domain, wherein the N-terminus of said core domain has a net charge that is less negative than the N-terminus of wild-type nuclear factor interleukin 6 (NF-IL6), and wherein the binding affinity of said polypeptide is higher than NF-IL6 for its target sequence.
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Abstract
The present invention relates to inhibitors of the sequence specific transcription factor nuclear factor IL-6 (NF-IL6) and methods of use therefor. In particular, substitution mutants in the N-terminus of the NF-IL6 tryptic core domain are disclosed that have a higher binding affinity for the DNA binding site than does the wild-type sequence.
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Citations
21 Claims
- 1. An isolated polypeptide comprising an NF-IL6 tryptic core domain, wherein the N-terminus of said core domain has a net charge that is less negative than the N-terminus of wild-type nuclear factor interleukin 6 (NF-IL6), and wherein the binding affinity of said polypeptide is higher than NF-IL6 for its target sequence.
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16. A composition comprising:
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(i) a polypeptide comprising an NF-IL6 tryptic core domain, wherein the N-terminus of said core domain has a net charge that is less negative that wild-type NF-IL6 tryptic core domain, and wherein the binding affinity of said polypeptide is higher than NF-IL6 for its target sequence; and (ii) a pharmaceutically acceptable carrier. - View Dependent Claims (17, 18)
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19. A method for inhibiting NF-IL6 function in a cell in culture comprising the steps of:
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(i) providing a polypeptide comprising an NF-IL6 tryptic core domain, wherein the N-terminus of said core domain has a net charge that is less negative than wild-type NF-IL6 tryptic core domain, and wherein the binding affinity of said polypeptide is higher than NF-IL6 for its target sequence; and (ii) contacting said cell with said polypeptide. - View Dependent Claims (20, 21)
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Specification