Launched in 2026 LifeSensors’ TUBE, attached to a fluor creates bright, direct fluorescence readouts without compromising polyubiquitin binding. You get bright, direct fluorescence readouts without compromising polyubiquitin binding. This enables fast workflows for detection, imaging, and assay development. Alexa‑TUBEs support everything from polyubiquitin enrichment and sensitive detection to fluorescence microscopy staining and scalable screening formats.