NCIt definition : Erythropoietin (193 aa, 21 kDa) is encoded by the human EPO gene. This protein plays
a role in both erythropoiesis and the maintenance of red blood cell volume.;
Alternative definition : NCI-GLOSS: A substance that is naturally produced by the kidneys, and that stimulates
the bone marrow to make red blood cells. When erythropoietin is made in the laboratory,
it is called epoetin alfa or epoetin beta.;