- Love, Anna C;
- Caldwell, Donald R;
- Kolbaba-Kartchner, Bethany;
- Townsend, Katherine M;
- Halbers, Lila P;
- Yao, Zi;
- Brennan, Caroline K;
- Ivanic, Joseph;
- Hadjian, Tanya;
- Mills, Jeremy H;
- Schnermann, Martin J;
- Prescher, Jennifer A
Multicomponent bioluminescence imaging in vivo requires an expanded collection of tissue-penetrant probes. Toward this end, we generated a new class of near-infrared (NIR) emitting coumarin luciferin analogues (CouLuc-3s). The scaffolds were easily accessed from commercially available dyes. Complementary mutant luciferases for the CouLuc-3 analogues were also identified. The brightest probes enabled sensitive imaging in vivo. The CouLuc-3 scaffolds are also orthogonal to popular bioluminescent reporters and can be used for multicomponent imaging applications. Collectively, this work showcases a new set of bioluminescent tools that can be readily implemented for multiplexed imaging in a variety of biological settings.