| Literature DB >> 9788953 |
A H Baugher1, J M Goetz, L M McDowell, H Huang, K L Wooley, J Schaefer.
Abstract
Rotational-echo double-resonance (REDOR) 13C NMR spectra (with 19F dephasing) have been obtained of 6-fluorotryptophan complexed by a polymeric amphiphilic nanosphere consisting of a polystyrene core covalently attached to a poly(acrylic acid)-polyacrylamide shell. The REDOR spectra show that aromatic carbons from the polystyrene core and oxygenated carbons in the poly(acrylic acid)-polyacrylamide shell are both proximate to the 19F of 6-fluorotryptophan. Molecular modeling restrained by distances inferred from the REDOR spectra suggests that all of the 6-fluorotryptophans are in the shell but within 10 A of the core-shell interface.Entities:
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Year: 1998 PMID: 9788953 PMCID: PMC1299932 DOI: 10.1016/S0006-3495(98)77702-1
Source DB: PubMed Journal: Biophys J ISSN: 0006-3495 Impact factor: 4.033