Metalloprotein
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Metalloprotein is a generic term for a protein that contains a metal ion cofactor. A large proportion of all proteins are part of this category. For instance, at least 1000 human proteins contain zinc
EF-hand motif
Manganese
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Manganese is a chemical element; it has the symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. First isolated in the 1770s, mangane
Metalloprotein
…the human body is mostly due to the iron in hemoglobin. Metal concentrations in humans organs (ppm = μg/g ash) Liver Kidney Lung Heart Brain Muscle Mn (manganese) 138 79 29 27 22 <4-40 Fe (iron) 16,769 7,168 24,967 5,530 4,100 3,500 Co (cobalt) <2-13 <2 <2-8 --- <2 150 (?) Ni (nickel) <5 <5-12 <5 <5 <5 <15 Cu…
Pure manganese cube and oxidized manganese chips
Manganese(II) chloride crystals – the pale pink color of Mn(II) salts is due to a spin-forbidden 3d transition.
Aqueous solution of KMnO4 illustrating the deep purple of Mn(VII) as it occurs in permanganate
Some of the cave paintings in Lascaux, France, use manganese-based pigments.