Anti-Estrogen Receptor-a (Ab-104) Antibody

Raised in rabbit and supplied as 100 µl of unconjugated polyclonal antiserum, this Antibodies.com primary antibody targets Estrogen Receptor-α (ERα), the nuclear hormone receptor encoded by ESR1 that mediates oestrogen-dependent gene regulation in breast, uterine, ovarian, and skeletal tissue.

The reagent is validated for Western blot and immunohistochemistry on human samples, supporting researchers investigating hormone-receptor signalling, breast-cancer biology, and endocrine response pathways. Because the antibody is unconjugated, users can pair it with HRP-, fluorophore-, or biotin-labelled secondaries of their choosing.

Polyclonal recognition of multiple epitopes across ERα is particularly useful for detecting denatured receptor on membranes and for visualising receptor distribution within formalin-fixed, paraffin-embedded tissue sections in IHC workflows.