Which of the actin-binding proteins (1 to 5) in the following schematic drawing represents tropomyosin, ?-actinin, Arp 2/3 complex, CapZ, and myosin, respectively? Your answer would be a five-digit number composed of digits 1 to 5 only; e.g. 15324.

Question

Quizplus · Accepted Answer

Tropomyosin binds to several adjacent actin subunits along the actin filament and stabilizes the filament. ?-Actinin cross-links actin filaments, commonly in an antiparallel fashion. The Arp 2/3 complex nucleates actin filaments and can remain bound at the minus end. CapZ binds to the plus end and prevents polymerization. The myosin motor moves on the actin filament.

Which of the Actin-Binding Proteins (1 to 5) in the Following