If this is the case, then in the GFP host–RFP tumour model such fused cells should be yellow, showing the usefulness of fluorescent proteins in addressing these important questions. Duda et al.

Early efforts to engineer red-shifted Aequeorea victoria GFP (avGFP) variants led to the development of enhanced GFP (EGFP) and yellow fluorescent proteins with emission maxima at approximately ...