We are trying to stain PFA fixed RBL (rat basophilic leukemia cells) for intracellular ubiquitin. I have tried the Ubi-1 clone from Zymed without success (although it works well for Western). There are a number of different clones available, however I have been told by one company that their clones definitely do not work in rat cells for flow. Rather than randomly try other clones, I'd appreciate finding out if anyone has experience staining for ubiquitin in ANY species by flow? Any suggestions? Thanks. Calman
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