Hemins of Beef Heart Muscle

Abstract

26) the two "a" type hemins isolated, which were arbitrarily designated hemins al and a2, were identified with cryptohemin a and hemin a or cytohemin (15), respectively.Recently the prosthetic group of cytochrome a2 has also been called hemin a2 (29).In order to avoid confusion we will refer hereafter to our previous hemin al as cryptohemin a and to our previous hemin a2 as hemin a.