Human Pro Meprin  beta Subunit/MEP1B Antibody

Meprins are multimeric proteases composed of alpha and beta subunits, which are members of the astacin family of zinc endopeptidases (1, 2). Both subunits form disulfide‑linked homo- or heterooligomers, which are also referred to as Meprin A (composed of alpha subunits with or without beta subunits) and Meprin B (composed of beta subunits only) (3). Although the two subunits share 42% identity in their amino acid sequence, they differ significantly in their oligomeric structure, post-translational processing and subsequently cellular location, and substrate and peptide bond specificity (4). The 701 aa sequence of the human Meprin beta subunit precursor consists of a signal peptide (aa 1 - 21), a pro region (aa 22 - 61), and a mature chain (aa 62 - 701) containing the following domains: catalytic (aa 62 - 259), MAM (aa 260 - 429), MATH (aa 430 - 585), EGF-like (aa 604 - 644), transmembrane (aa 653 - 673), and cytoplasmic (aa 674 - 701).