Omega Optical Introduces Filter Sets For New Keima-Red Fluorescent Protein

In collaboration with Dr. Atsushi Miyawki of RIKEN, Omega Optical developed three new filter sets for use with CoralHue™ Keima-Red fluorescent protein, further expanding Omega’s extensive product line of fluorescence filter sets for the rapidly growing library of fluorescent proteins. The new filter sets include versions with both longpass and bandpass emission filters to accommodate a variety of single and multi-fluor applications.

Developed by researchers at RIKEN and Hokkaido University in Japan, Keima-Red has an extremely large Stokes shift, making it very useful for tracking protein-protein interactions and for multi-fluor use in fluorescence cross-correlation spectroscopy. These features make it possible for researchers to excite two labels with a single laser for simultaneous fluorescence, resulting in the ability to track protein localization in cells, as well as for monitoring gene expression. Keima-Red is available through MBL International.

The spectral curves of Keima-Red and its optimized filter sets are available online in Omega’s Curvomatic, an interactive database containing fluorescent probes and filter spectral data.