Question
One protein in this family localizes to the sides of stereocilia to support tip links and is the most common protein mutated in patients with type I ("one") Usher syndrome. One of these proteins cross-links antiparallel structures into stress fibers. Class VI ("six") of these proteins travel towards pointed ends, while their class II ("two") is "conventional." The presence of these proteins distinguishes the H zone and the A band, and these proteins are absent from (*) I ("eye") bands. The head domain of these proteins uses energy released by ATP hydrolysis for its "power stroke." These proteins form thick filaments in sarcomeres. For 10 points, name these motor proteins that drive muscle contraction by binding to actin. ■END■
ANSWER: myosins [accept non-muscle myosin II or myosin II or myosin VI or myosin VIIa ("seven A"); prompt on motor proteins before "motor" is read; reject "tropomyosin"] (The lead-in describes myosin VIIa.)
<Science - Biology>
= Average correct buzz position
Buzzes
Summary
Tournament | Edition | Exact Match? | TUH | Conv. % | Power % | Neg % | Average Buzz |
---|---|---|---|---|---|---|---|
2025 PACE NSC | 06/07/2025 | Y | 40 | 83% | 5% | 0% | 104.64 |