Question

What would you expect to differ and remain the same between a protein isolated from different species? To answer this question, please consider both the primary sequence and the tertiary structure of the protein. So would the primary sequence and tertiary structure stay the same or be different in a protein isolated from different species?

Answer 1

When a protein is isolated from different species so it obviously have different structure.

Proteins are long chain linear polymer of amino acids and this organization is called as primary structure of protein.

primary structure of protein full it depends on the sequence of amino acids.

Amino acids present in the chain makes hydrogen bonding with each other this organisation of structure is known as secondary structure. example Alpha helix and beta sheets.

Tertiary structure composed of multiple Alpha helix and beta sheets.

Due to the change in Amino acid sequence, tertiary structure of protein will be changed.

So proteins isolated from two species can not be same if they don't have same amino acid sequance.