transcription, транскрипция: [ ˈtrō-pə-nən, ˈträ-, -ˌnin ]
noun
Etymology: by shortening & alteration from tropomyosin
Date: 1966
: a protein of muscle that together with tropomyosin forms a regulatory protein complex controlling the interaction of actin and myosin and that when combined with calcium ions permits muscular contraction