Which Statement About Integrins Is False?
A) The $\beta$ Subunit Binds Divalent Cations

Multiple Choice

Which statement about integrins is false?

A) The $\beta$ subunit binds divalent cations.
B) Each subunit has a large extracellular head group.
C) Each subunit has a short cytoplasmic domain that interacts with intracellular proteins such as talin, $\alpha$ -actinin, and plectin.
D) Integrin has two subunits, termed $\alpha$ and $\beta$ that dimerize with each other.