Helix-Turn-Helix Motifs
Medical Dictionary
-> Helix-Turn-Helix Motifs
Search:
Helix-Turn-Helix Motifs
The first DNA-binding protein motif to be recognized. Helix-turn-helix motifs were originally identified in bacterial proteins but have since been found in hundreds of DNA-BINDING PROTEINS from both eukaryotes and prokaryotes. They are constructed from two alpha helices connected by a short extended chain of amino acids, which constitute the "turn." The two helices are held at a fixed angle, primarily through interactions between the two helices. (From Alberts et al., Molecular Biology of the Cell, 3d ed, p408-9)
© MedicalDictionaryweb.com 2012 |
Contact Us
|
Terms of Use
|
Teeth Whitening
|
Low Carb Foods and Diets