Editing Myoglobin (section)

==Differences from hemoglobin==
Like hemoglobin, myoglobin is a cytoplasmic protein that binds oxygen on a [[heme]] group. It harbors only one globulin group, whereas hemoglobin has four. Although its heme group is identical to those in Hb, Mb has a higher affinity for oxygen than does hemoglobin but fewer total oxygen-storage capacities. Research suggests that myoglobin facilitates oxygen diffusion down a gradient, enhancing oxygen transport in mitochondria.<ref>{{cite book | vauthors = Wilson MT, Reeder BJ | chapter = Myoglobin |date=2006 | title = Encyclopedia of Respiratory Medicine |pages=73–76 | veditors = Laurent GJ, Shapiro SD |place=Oxford |publisher=Academic Press |doi=10.1016/b0-12-370879-6/00250-7 |isbn=978-0-12-370879-3 }}</ref>