n. Biochemistry. The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. In protein: Conjugated proteins The link between a protein molecule and its prosthetic group is a covalent bond (an electron-sharing bond) in the glycoproteins, the biliproteins, and some of the heme proteins. conjugated protein. conjugated protein. Definition of conjugated protein. Published by Houghton Mifflin Company. Among the heme proteins are the cytochromes, which are substances that act as electron carriers and enzymes, such as catalase and peroxidase; myoglobin, a molecule that carries and stores oxygen in muscle; and hemoglobin, which is responsible for the transport of oxygen in blood. A compound, such as hemoglobin, that is made up of a protein molecule and a nonprotein prosthetic group. n. (Biochemistry) a biochemical compound consisting of a sequence of amino acids making up a simple protein to which another nonprotein group (a prosthetic group), such as a carbohydrate or lipid group, is attached. conjugated protein noun a biochemical compound consisting of a sequence of amino acids making up a simple protein to which another nonprotein group (a prosthetic group), such as a carbohydrate or lipid group, is attached Hyponyms (each of the following is a kind of "conjugated protein"): glycoprotein (a conjugated protein having a carbohydrate component) haemoprotein; hemoprotein (a conjugated protein linked to a compound of iron and porphyrin) lipoprotein (a conjugated protein having a lipid component; the principal means for transporting lipids in the blood) Hemoglobin is a conjugated protein whose prosthetic group, heme, gives it its typical intense red color. conjugated protein in British English noun a biochemical compound consisting of a sequence of amino acids making up a simple protein to which another nonprotein group (a prosthetic group), such as a carbohydrate or lipid group, is attached
: a compound of a protein with a nonprotein hemoglobin is a conjugated protein — compare simple protein.