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J. Biol. Chem., Vol. 262, Issue 19, 8963-8965, Jul, 1987
PJ Jones, EA Cioffi and JH Prestegard
[19F]-1H heteronuclear difference nuclear Overhauser effect experiments are performed on a sample of 5,5-difluorohexanoyl acyl carrier protein from Escherichia coli. Interaction of the fluorines at the 5-position of the acyl chain with protons on methyl groups of isoleucine 54 and alanine 59 is clearly indicated. The covalent attachment of the acyl chain via a prosthetic group to serine 36 and the known alpha-helix which exists from residues 36 to 51 greatly restrict the structural models which would allow acyl chain contact with residues 54 and 59.
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