Synthesis of dolichyl phosphate derivatives with fluorescent label at the ω-end of the chain, new tools to study protein glycosylation
摘要:
Derivatives of dolichyl phosphate (Dol-P) with 2-aminopyridine or 1-aminonaphtalene fluorophore groups at the omega-end of the chain were synthesized. These products serve as substrates for recombinant yeast Dol-P-mannose synthase. Fluorescence resonance energy transfer between a Trp residue of the enzyme and the 1-aminonaphtalene group of the Dol-P analogue was demonstrated. (C) 2000 Elsevier Science Ltd. All rights reserved.
Synthesis of dolichyl phosphate derivatives with fluorescent label at the ω-end of the chain, new tools to study protein glycosylation
摘要:
Derivatives of dolichyl phosphate (Dol-P) with 2-aminopyridine or 1-aminonaphtalene fluorophore groups at the omega-end of the chain were synthesized. These products serve as substrates for recombinant yeast Dol-P-mannose synthase. Fluorescence resonance energy transfer between a Trp residue of the enzyme and the 1-aminonaphtalene group of the Dol-P analogue was demonstrated. (C) 2000 Elsevier Science Ltd. All rights reserved.
作者:V. V. Veselovsky、A. V. Lozanova、S. D. Maltsev、L. L. Danilov、V. N. Shibaev、M. J. Jedrzejas
DOI:10.1023/a:1015034309170
日期:——
A series of fluorescent dolichyl phosphates containing the (1-naphthyl)amino group in the omega-fragment of the chain and possessing a definite distance between fluorophoric and phosphate groups were synthesized for studying the interactions of dolichyl phosphates with enzymes and biological membranes. The corresponding terminal 2,3-dihydrohexadeca-, 2,3-dihydroundeca-, and 2,3-dihydrooctaprenol epoxides were obtained from racemic dolichols (prepared from natural polyprenol mixtures) by van Tamelen epoxidation of their omega-isoprene unit and separated by preparative HPLC. These epoxides were converted to aldehydes, which were subjected to reductive amination with 1-aminonaphthalene and NaBH4 with subsequent phosphorylation of the resulting amino alcohols.