Oxygen transporter
Oxygen transporters are water-soluble proteins that are able to easily absorb and release oxygen . They can be found in all living things except the archaea . Since they cause the color of the blood in multicellular animals , they are also called blood pigments there . The best known is the hemoglobin of vertebrates , the family of the globin part, which account for the majority of the oxygen transporter.
The members that do not belong to the globins can be divided into two families, the haemerythrin family in protostomia and bacteria and the haemocyanin family of tyrosinases in arthropods and mollusks . The latter also includes the myoglobin of abalone (genera Nordotis and Sulculus ), which, despite its name, by the enzyme indoleamine 2,3-dioxygenase derived.
Individual evidence
- ↑ UniProt
- ↑ Suzuki T: Abalone myoglobins evolved from indoleamine dioxygenase: the cDNA-derived amino acid sequence of myoglobin from Nordotis madaka . In: J. Protein Chem. . 13, No. 1, January 1994, pp. 9-13. PMID 8011076 .