Question

Estimate for the no of amino acid residues in a protein with a molecular weight of 85 kda

Answer 1

A single naturally occurring amino acid has from 5 to 15 C/N/O atoms and weighs from 70 to 160 Daltons. I don't remember the mean weight, but lets assume about 125 Da per amino acid. Therefore, your 85Ka protein has about 85,000 / 125 = 680 amino acids.

Answer 2

773 amino acid

Explanation:

The average weight of an amino acid is considered to be about 110Da.

In the given question,

• the molecular weight of amino acid is- 85 kDa or 85000 Da
• therefore the number of amino acids will be calculated as
• $\frac{total molecular weight of protein}{average molecular weight of amino acid}$
• $= \frac{85000}{110} \\= 773 amino acids$

Thus, 773 amino acid is the correct answer.

To learn more:

1.  Amino acids: https://brainly.in/question/5193415