Question

There are 20 common amino acids and a typical protein chain may contain 150-1000 or more amino acids. How many different proteins do you think can be built from this number of amino acid subunits?
Explain your reasoning.
NOTE: You are NOT looking for an ACTUAL number.

Answer 1

Answer:

Explanation:

There are 20 base amino acids, so there are 20 300 possible sequences of amino acids. A gross estimation of that number would be 2 300 ∗ 10 300 ∼ 10 90 ∗ 10 300 = 10 390. But, the number of sequences does not determine the number of different proteins.