ER-ID™Â Red assay kit (GFP-Certified™)

However, to date, photoconversion of red fluorescent dyes to green fluorescent ones and metachromatic artifacts, wherein fluorescent dyes emit both in the red and green regions of the spectrum, have led to spurious results in GFP co-localization experiments. Additionally, many organelle-targeting probes photobleach rapidly, are subject to quenching upon concentration in organelles, are highly toxic, or only transiently associate with the target organelle, requiring imaging within a minute or two of dye addition. Consequently, ER-ID™ Red dye, a new red-emitting, cell-permeable small molecule organic probe that spontaneously localizes to live or fixed endoplasmic reticula, was developed. ER-ID™ Red dye can be readily used in combination with other common UV and visible light excitable organic fluorescent dyes and various fluorescent proteins in multi-color imaging and detection applications. The dye emits in the Texas Red region of the visible light spectrum, and is highly resistant to photo-bleaching, concentration quenching and photoconversion.The ER-ID™ Red assay kit (GFP-Certified™) is specifically designed for use with GFP-expressing cell lines, as well as cells expressing blue, cyan or yellow fluorescent proteins (BFPs, CFPs, YFPs). Additionally, the kit is suitable for use with live or post-fixed cells in conjunction with probes, such as labeled antibodies, or other fluorescent conjugates displaying similar spectral properties as fluorescein, or coumarin. A nuclear counterstain is provided to highlight this organelle as well.