Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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No pronunciation record was provided for this word.
noun
A structural motif where two alpha helices are joined by a short amino acid loop, frequently acting as a DNA binding site.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable, usually
Topics: biochemistry, biology, chemistry, genetics, medicine, microbiology, natural-sciences, physical-sciences, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
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.
