Source:http://linkedlifedata.com/resource/umls/id/C0010749
CSP: cytochrome that plays a central role as an electron carrier in the respiration of the mitochondria; contains an iron porphyrin that is the site of electron transfer.,MSH: Cytochromes of the c type that are found in eukaryotic MITOCHONDRIA. They serve as redox intermediates that accept electrons from MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX III and transfer them to MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX IV.