(biochemistry) Proteins that bring together various other proteins in a signaling pathway and allow for their interaction. They recruit downstream effectors in a pathway and enhance specificity of the signal.

(biochemistry) Any protein that consists of both a polypeptide (the apoprotein) and a prosthetic group such as a lipid (in lipoproteins), sugar (in glycoproteins) or porphyrins and metals (in hemoglobin etc)

(biology) A part of protein sequence and structure that can evolve, function, and exist independently of the rest of the protein chain.

plural of protein domain

plural of protein subunit

plural of G-protein

plural of G protein

plural of scaffold protein

(biochemistry) Any protein whose function is to transport small molecules (or other proteins) through biological membranes

plural of SUMO protein