e/Polyglutamine tract

Information
has gloss	eng: A polyglutamine tract or polyQ tract is a portion of a protein consisting of a sequence of several glutamine units. A tract typically consists of about 10 to a few hundred such units.
lexicalization	eng: polyglutamine tract
instance of	(noun) amide combining the amino group of one amino acid with the carboxyl group of another; usually obtained by partial hydrolysis of protein peptide