Cytoskeleton and motility · USMLE Step 1

Which class of proteins links cytoskeletal filaments to the plasma membrane or to other cytoskeletal elements to coordinate cellular architecture and signal transduction?

  1. Motor proteins only (e.g. kinesin, dynein)
  2. Cytoskeleton-binding (linker/scaffold) proteins
  3. Ribosomal proteins
  4. DNA polymerases
Show answer and explanation

Correct answer: Cytoskeleton-binding (linker/scaffold) proteins

Cytoskeleton-binding (linker or scaffold) proteins interconnect different filaments, anchor them to membranes or organelles, and coordinate the cytoskeletal network’s organization — crucial for structure, signaling, and movement.

Difficulty: Medium Question 16 of 21

Practice all 21 Cytoskeleton and motility questions

Keep practicing

More Cytoskeleton and motility questions