Boster Bio Anti-E1 Ubiquitin Activating Enzyme/UBA1 Antibody Picoband® catalog # PB9904. Tested in WB applications. This antibody reacts with Human, Mouse, Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.