Anti-PENK Antibody

Raised in rabbit against the proenkephalin (PENK) precursor, this unconjugated polyclonal antibody from Antibodies.com recognizes the endogenous opioid peptide precursor that gives rise to Met-enkephalin and Leu-enkephalin. The reagent is supplied as a 100 µl volume at 1 mg/ml in PBS buffer containing 0.1% sodium azide and 50% glycerol, providing a ready-to-dilute liquid format. Verified applications include Western blot and immunohistochemistry on human tissue and cell samples, supporting studies of central nervous system enkephalin signaling, adrenal medullary chromaffin cell biology, and stress or inflammatory response pathways.

Because the antibody is unconjugated, end users can pair it with HRP, biotin, or fluorophore-conjugated secondaries of their choice. The polyclonal format recognizes multiple epitopes across the PENK precursor, which is useful when probing full-length proenkephalin as well as processed peptide fragments in lysate or fixed-section preparations. The 50% glycerol component helps protect the antibody from freeze-thaw damage during routine handling, while the PBS buffer with 0.1% sodium azide preserves activity between experimental sessions.