Proteinase 3 (PRTN3) Antibody – Sheep Polyclonal

Proteinase 3 (PRTN3; also PR3/leukocyte, Myeloblastin and NP-4) is a 32-33kD member of the peptidase S1 family of enzymes. It is expressed by monocytes and neutrophils, the latter of which either secretes it, sequesters it in azurophilic granules, or expresses it on the cell surface. When secreted, it acts on HK and activates the kinin pathway. In azurophilic granules, it aids in the digestion of phagocytosed material. On the cell surface, it likely acts on ECM. Human PRTN3 proprecursor is 231aa in length. It contains an Ala26Glu27 propeptide that is removed during maturation, a 221aa mature enzyme (aa28-248), and an eight aa C-terminal propeptide (aa249-256). Within the cell, a 35kD immature form exists; on the cell surface, both constitutively inactive, and induced active forms may be found, often in a noncovalent association with CD177/NB1. Over aa26-249, human PRTN3 shares 68% aa identity with mouse PRTN3.

Small volumes of anti-PRTN3 antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

MBS627376 is an antibody targeting PRTN3. Also known as Proteinase 3 (Proteinase-3, PR3, PR-3, PRTN3, ACPA, Azurophil Granule Protein 7, AGP7, cANCA, c-ANCA Antigen, EC 3.4.21.76, Leukocyte Proteinase 3, MBT, Myeloblastin, MBN, Neutrophil Proteinase 4, NP4, NP-4, p29, Wegener Autoantigen). Reactive in Human. Host: Sheep.