Protein subunits that interact specifically with DNA sequences …
A) typically recognize sequences of two to three nucleotide pairs in length.
B) do so via hydrogen bonds, ionic bonds, and hydrophobic interactions.
C) typically form about five weak interactions at the protein-DNA interface.
D) often bind loosely to DNA.
E) All of the above.

Question

Quizplus · Accepted Answer

DNA-binding proteins typically recognize specific sequences that are 5 to 10 nucleotide pairs in length. This involves forming 20 or so weak interactions at the interface, including hydrogen-bonding, ionic bonding, and hydrophobic interactions. The sum of all protein-DNA interactions can result in high affinity and specificity.

Protein Subunits That Interact Specifically with DNA Sequences …