Methods for identifying and using MarR family polypeptide binding compounds
View Patent ↗Methods for identifying MarR family inhibiting compounds are described. The methods include the use of computer aided rational based drug design programs and three dimensional structures of MarR family polypeptides.
1. A method for inhibiting expression of MarA, comprising contacting MarR with a MarR modulating compound, wherein said MarR modulating compound is of the formula:
wherein, X is an interacting moiety selected from the group consisting of hydroxyl, thiol, sulfonyl, sulfonyl, amino, carbonyl, alkyl, and acyl moieties;
Y is a selected from the group consisting of substituted or unsubstituted cyclic or bicyclic moiety, optionally substituted with a hydrophilic substituent; and
wherein X and the carboxylate group of said formula are separated by a distance of about 1.5 Angstroms.
2. The method of claim 1 wherein the MarR modulating compound is a MarR activator.
3. The method of claim 1 wherein said interacting moiety X interacts with the amino acid Asn corresponding to position 72 of SEQ ID NO:1.
4. The method of claim 1 wherein said interacting moiety X interacts with the amino acid Asn corresponding to position 70 of SEQ ID NO:1.
5. The method of claim 1 , wherein X is a hydroxy, thiol or amino.
6. The method of claim 1 , wherein Y is aryl.
7. The method of claim 1 , wherein Y is capable of interacting hydrophobically with the corresponding amino acid positions Asp 57 or Lys 74 of SEQ ID NO:1.
8. The method of claim 1 , wherein the MarR modulating compound is a MarR inhibitor.
9. The method of claim 1 , wherein X is hydroxyl.
10. The method of claim 1 , wherein Y is monocyclic.
11. The method of claim 1 , wherein Y is bicyclic.
12. The method of 1 wherein the MarR modulating compound is selected from the group consisting of: