Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 129, Issue 12, Pages 3494-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja069105d
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Ratiometric fluorescent sensor proteins with a very high and tunable affinity for Zn(II) were created by connecting two fluorescently labeled metal binding domains, CFP-Atox1 and WD4-YFP, using a series of flexible peptide linkers. A simple random-coil model describing the conformational distribution of the linker allowed a quantitative understanding of the effect of the linker length on both the change in emission ratio and the Zn(II) affinity.
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