helix-turn-helix en · NOUN
Etymology
From helix + turn + helix. The term got its name from its distinct physical geometry; two alpha helices separated by a short amino acid sequence connecting the helices, where one helix recognizes and binds to a specific sequence in DNA.
Meanings
- (uncountable, usually) A structural motif where two alpha helices are joined by a short amino acid loop, frequently acting as a DNA binding site.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| helix-turn-helices | Number=Plur | lexicographic |
Relateds
zinc finger · leucine zipper · homeodomain · helix-loop-helix