Article
Creating temperature-sensitive winged helix transcription factors. Amino acids that stabilize the DNA binding domain of HNF3.
The Journal of biological chemistry - 29 Sept 2000
Stevens K, Cirillo L, Zaret K S
Abstract excerpt
Winged helix transcription factors contain two polypeptide loops, or "wings," that make minor groove contacts with DNA from either side of a three-helix bundle that binds the DNA major groove. While wing 1 is stabilized by a beta-sheet, parameters that stabilize wing 2 are unknown. Herein we identify two bulky aromatic residues in wing 2 that stabilize the loop structure and, thereby, the entire protein's DNA...
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