Anti-Histone H2A.X (E145) Antibody

Generated in rabbit against a synthetic peptide corresponding to a region near residue E145 of human Histone H2A.X, this polyclonal reagent from Antibodies.com recognizes both unmodified H2A.X and γH2AX species. Validated for immunohistochemistry on human, mouse, and rat tissue sections, it supports studies of DNA double-strand break repair, chromatin remodeling, and genotoxicity pathways by mapping damage-associated nuclear foci in fixed samples. The unconjugated format enables flexible pairing with secondary detection systems. Supplied at 1 mg/ml in phosphate buffered saline containing 0.05% sodium azide at approximately pH 7.2, the 100 µl vial is sized for multiple staining runs. For routine use, store refrigerated at 4 °C; for longer-term stability, hold frozen in single-use aliquots to limit freeze-thaw cycles.