| 单词 | Motifs,HTH |
| 释义 | Motifs,HTH《英文msh词典》Motifs,HTH [入口词] Motifs,HTH [主题词] Helix-Turn-Helix Motifs [英文释义] 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) |
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