Question

what are some characteristics of protein

Answer 1

main characteristics of proteins are as fallows:
these are macromolecules
and sequence of amino acids determines their shape and size

Answer 2

The sequence of amino acids in a protein determines its shape, which in turn determines its function. The raw sequence of amino acids is known as its primary structure. However, when a molecule is as large as proteins tend to be, it will interact with itself to take on a specific shape.