Anti-PIP Antibody

Prolactin-inducible protein (PIP), a secretory glycoprotein also designated GCDFP-15, serves as a clinically relevant immunohistochemical marker for apocrine differentiation in breast tissue and certain metastatic tumors. This rabbit polyclonal primary antibody from Antibodies.com is raised against the human target and supplied as 100 µl of unconjugated antiserum in a vial, validated for Western blot and immunofluorescence workflows. In research settings, it supports characterization of epithelial lineage origin in breast pathology studies, salivary gland biology, and apocrine-derived neoplasms, enabling detection of the native antigen in cell lysates, formalin-fixed tissue sections, and cultured preparations. The polyclonal format recognizes multiple epitopes on the target, which can improve signal robustness across varied sample types but warrants appropriate negative controls to confirm specificity. For handling, refrigerate upon arrival; aliquot to limit freeze-thaw cycles and protect from light to preserve binding activity over extended experimental timelines.