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The effect of Mg2+ and Ca2+ on urea-catalyzed phosphorylation reactions (1973)

Handschuh, G. J. ; Lohrmann, R. ; Orgel, L. E.

Springer

Journal of molecular evolution 2 (1973), S. 251-262

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ISSN: 1432-1432

Keywords: Prebiotic Phosphorylation ; Urea ; Struvite ; Ammonium phosphate ; Hydroxylapatite ; Nucleotide ; Pyrophosphate ; Esterification

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Summary When struvite (MgNH4PO4 ⋅ 6H2O) is heated with urea at 65–100°C, inorganic pyrophosphate is formed in good yield. Under similar conditions pyro-phosphate is formed much more slowly from ammonium phosphate or hydroxylapatite. The major products formed by the reaction of nucleotides with urea and either ammonium phosphate or hydroxylapatite are derivatives phosphorylated on the 2′ or 3′ position. With struvite, on the other hand, the main reaction is pyrophosphate bond formation. Yields of up to 25% of uridine diphosphate can be obtained at temperatures as low as 65°C.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01654094

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