Domain Definition Biochemistry
The term domain in biochemistry and molecular biology is usually used to refer to a part of a protein that has a conserved structure and function is similar between related proteins and can generally exist or function on its own if it was separated from the rest of the protein.
Domain definition biochemistry. A protein domain is a region of the protein s polypeptide chain that is self stabilizing and that folds independently of the rest of the protein s polypeptide chain. One domain may appear in a variety of different proteins. In biology a domain refers to the largest of all groups in the classification of life.
Molecular evolution uses domains as building blocks and these may. There are currently 3 agreed groups at this level the archaea domain bacteria domain and eukarya domain. Each domain forms a compact folded three dimensional structure.