A variable light domain fluorogen activating protein homodimerizes to activate dimethylindole red.
Senutovitch, N., Stanfield, R.L., Bhattacharyya, S., Rule, G.S., Wilson, I.A., Armitage, B.A., Waggoner, A.S., Berget, P.B.(2012) Biochemistry 51: 2471-2485
- PubMed: 22390683 
- DOI: 10.1021/bi201422g
- Primary Citation of Related Structures:  
3T0V, 3T0W, 3T0X - PubMed Abstract: 
Novel fluorescent tools such as green fluorescent protein analogues and fluorogen activating proteins (FAPs) are useful in biological imaging for tracking protein dynamics in real time with a low fluorescence background. FAPs are single-chain variable fragments (scFvs) selected from a yeast surface display library that produce fluorescence upon binding a specific dye or fluorogen that is normally not fluorescent when present in solution ...