Why are there so many kinds of protein?

Answer 1

We should note that enzymes are proteineous but not all enzymes are protein,actually it depends in the sequence of the amino acid polymerization,for instance in the change of valine of normal haemoglobin to glutamine of sickle haemoglobine and some protein constitute its monomers alone while others constitute another chemical component apart from their monomers.

Answer 2

there are 20 types of amino acids and a protein might be up to say 1000 amino acids long, that gives 201000 different possible protein combinations of that length. Far more than the number of subatomic particles in the entire universe. You also have to consider that proteins come in different lengths.

Answer 3

First there are 20 different amino acids that make up proteins.

With an average protein containing between 50 and 100 amino acids:

• a protein of 50 amino acids can have 20^50 different kinds, 112.59E63
• a protein of 100 amino acids can have 20^100 different kinds, or 12.677E129
• considering that proteins have different lengths, to find the total number of kinds of average proteins you need to compute the sum of the number of kinds of proteins with 50 amino acids, 51 amino acids, 52 amino acids, 53 amino acids, ..., 98 amino acids, 99 amino acids, and 100 amino acids
• considering that proteins come in lengths both shorter and longer than average, the number of kinds of those must also be included in this sum to get a final answer for the number of possible kinds of protein

A protein of 80 amino acids can have 120.89E102 different kinds, this number is already much larger than the number of subatomic particles in the known universe!

Answer 4

there are so many different kinds of proteins to carry out the various metabolisms there are so many different kinds of proteins to carry out the various metabolisms

Answer 5

For different functions in cells

Answer 6

Because that's what we were told