NMR studies of the reaction of formaldehyde with the imidazole side chain of histidine: A reactive amino acid in enzyme catalysis
Autor: | Patricia Dunlop, Charles J. Martin, Mario A. Marini, Henry M. Fales, Edward A. Sokoloski |
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Rok vydání: | 1973 |
Předmět: | |
Zdroj: | Bioorganic Chemistry. 2:235-247 |
ISSN: | 0045-2068 |
DOI: | 10.1016/0045-2068(73)90026-6 |
Popis: | The reaction of imidazole and imidazole derivatives with formaldehyde can be demonstrated with NMR techniques. The results show that only one nitrogen of the imidazole ring reacts to form a N-hydroxymethyl derivative in alkaline solution. Under acidic conditions both nitrogen positions can support N-hydroxymethyl derivatives. This reaction represents a useful tool for the further investigation of enzyme mechanisms involving the imidazole nucleus. |
Databáze: | OpenAIRE |
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