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Probing dimerization and intraprotein fluorescence resonance energy transfer in a far-red fluorescent protein from the sea anemone Heteractis crispa
Journal of Biomedical Optics
Proteins from Anthozoa species are homologous to the green fluorescent protein ͑GFP͒ from Aequorea victoria but with absorption/emission properties extended to longer wavelengths. HcRed is a far-red fluorescent protein originating from the sea anemone Heteractis crispa with absorption and emission maxima at 590 and 650 nm, respectively. We use ultrasensitive fluorescence spectroscopic methods to demonstrate that HcRed occurs as a dimer in solution and to explore the interaction betweendoi:10.1117/1.2937477 pmid:18601536 fatcat:cadlcx4zgzghzktyhm3l6bw3u4