cystine knot
Word Rarity
Very rare
Frequency: Zipf frequency 1.81 in modern English
20
Scrabble Score
11
Letters
2
Syllables
9
Unique Chars
Meaning
noun
A protein structural motif containing three disulfide bridges formed from pairs of cysteine residues. The sections of polypeptide that occur between two of them form a loop through which a third disulfide bond passes, resulting in a rotaxane substructure. This motif stabilizes protein structure and is conserved in proteins across various species.