Manganese orthophosphate

Figure 3. XRD patterns of the preferred eengenese phosphorus oxide cstslyst, ssngsnese pyrophosphate, end Manganese orthophosphate.

L. A. Okorokov, V. M. Kadomtseva and I. S. Kulaev (1973b). The detection of polymeric calcium, magnesium and manganese orthophosphates in Penicillium chrysogenum (in Russian). Dokl. Akad. Nauk SSSR, 209, 735-739. 

This enzyme [EC 2.5.1.17], also referred to as cob(I)-alamin adenosyltransferase or aquacob(I)alamin adeno-syltransferase, catalyzes the reaction of cob(I)alamin with ATP and water to produce adenosylcobalamin, orthophosphate, and pyrophosphate (or, diphosphate). A cofactor for this enzyme is manganese ion. 

This biotin-dependent enzyme [EC 6.4.1.1] catalyzes the reaction of ATP with pyruvate and HCOs to produce ADP, orthophosphate, and oxaloacetate. The enzyme from yeast requires zinc whereas the enzyme isolated from animal tissues needs manganese as well as ace-tyl-CoA. 

Manganese(II) complex compounds, anions, iV-nitrosohydroxyl-amine-iV-sulfonato, [Mn(S03-N202)3]4-, 5 121 nonelectrolytes, with acetylace-tone, Mn(C3H702)2, 6 164 Manganese(III) orthophosphate, 2 213... 

MnP04 Manganese (III) orthophosphate, 2 213 Mo(CN)sK4-2H20 Potassium oc-tacyanomolybdate(IV) 2-hydrate, 3 160... 

Certain dipositive metal ions not only accelerate the hydrolysis of ATP, as mentioned above, but also assist in the transfer of a phosphoryl group from one molecule to another. Such a nonenzymatic transphosphorylation takes place between ATP and an orthophosphate ion or its monoester in the presence of calcium(II), cadmium(II), and manganese(II). This type of nonenzymatic process can serve as a model for the biologically important enzymatic transphosphorylations that involve ATP, although... 

Potassium hexacyanomanganate(III) may be prepared by the oxidation of potassium hexacyanomanganate(II). However, the latter is an unstable compound and one diflfi-cult to prepare in quantity. Potassium hexacyanoman-ganate(III) may be prepared more readily in pure form by the direct reaction of potassium cyanide with manganese-(III) orthophosphate. 

Lanthanide and actinide pyrophosphates can be prepared with boron orthophosphate (5.110), (5.111) as can the manganese salt (5.112). 

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