Hemovanadin

Hemovanadin is a pale green vanabin protein found in the blood cells, called vanadocytes, of ascidians (sea squirts) and other organisms (particularly sea organisms).[1] It is one of the few known vanadium-containing proteins.[2][3] The German chemist Martin Henze first detected vanadium in ascidians (sea squirts) in 1911.[4][5] Unlike hemocyanin and hemoglobin, hemovanadin is not an oxygen carrier.[6][7]

Sea squirt (Didemnum molle) off Sulawesi, Indonesia

References

1. Fox DL (1979). "Hemovanadins". Biochromy, Natural Coloration of Living Things. University of California Press. pp. 196–9. ISBN 978-0-520-03699-4.
2. Bailey KC (1954). Neurath H (ed.). The proteins: composition, structure, and function. 2. Academic Press.
3. Bielig HJ, Bayer E, Califano L, Wirth L (1954). "Vanadium-containing blood pigment. 11. Hemovanadin, a sulfate complex of trivalent vanadium". Pubblicazioni della Stazione Zoologica di Napoli. 25: 26–66. OCLC 4344268.
4. Henze M (1911). "Untersuchungen über das Blut der Ascidien. 1. Mitteilung. Die Vanadiumverbindung der Blutkörperchen" [Studies on the blood of sea squirts. I. Communication. The vanadium compound of the blood cells]. Biological Chemistry (in German). 72 (5–6): 494–501. doi:10.1515/bchm2.1911.72.5-6.494.
5. Michibata H, Uyama T, Ueki T, Kanamori K (2002). "Vanadocytes, cells hold the key to resolving the highly selective accumulation and reduction of vanadium in ascidians". Microscopy Research and Technique. 56 (6): 421–34. doi:10.1002/jemt.10042. PMID 11921344.
6. Underwood EJ (1962). Trace elements in human and animal nutrition. Academic Press. p. 353. OCLC 598742364.
7. Boeri E (June 1952). "The determination of hemovanadin and its oxidation potential". Archives of Biochemistry and Biophysics. 37 (2): 449–456. doi:10.1016/0003-9861(52)90205-1.