(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

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

(biochemistry) Any inactive protein that can be activated by posttranslational modification

(biochemistry) A protein formed by genetically fusing or combining a gene encoding a target protein of interest with a gene encoding a protein or portion of protein that adds a desired functionality to the target.

(biochemistry) An iron-sulfur protein component of cytochrome complexes.

(biochemistry) A protein (or group of proteins) permanently attached to a biological membrane by interactions between its hydrophobic dimer units and the phospholipids of the membrane

(biochemistry) a kinase whose substrate is a protein