Detection of Human Proprotein Convertase 2/PCSK2 by Western Blot.
Western blot shows lysates of human brain (cerebellum) tissue. PVDF Membrane was probed with 2 µg/mL of Human Proprotein Convertase 2/PCSK2 Monoclonal Antibody (Catalog # MAB6018) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for Proprotein Convertase 2/PCSK2 at approximately 75 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Proprotein Convertase 2/PCSK2 in HepG2 Human Cell Line.
Proprotein Convertase 2/ PCSK2 was detected in immersion fixed HepG2 human hepatocellular carcinoma cell line using Mouse Anti-Human Proprotein Convertase 2/ PCSK2 Monoclonal Antibody (Catalog # MAB6018) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Preparation and Storage
Sterile PBS to a final concentration of 0.5 mg/mL.
Reconstitution Buffer Available
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Proprotein Convertase 2/PCSK2
Proprotein Convertase 2 (PCSK2) is a subtilisin-like serine peptidase that processes proteins into biologically active products in the secretory pathway. Like other furin/kexin family members, PCSK2 cleaves its substrates primarily after sites of paired basic amino acid residues (1). Autoactivation of PCSK2 occurs in a post‑Golgi compartment of the secretory system (2). Interaction with the secretory protein 7B2 is required for proper activation of PCSK2 (3). The N-terminal domain of 7B2 stabilizes active PCSK2, and a C-terminal fragment of 7B2 can inhibit PCSK2 activity (4). rhPCSK2 was coexpressed with 7B2 to facilitate activation of the enzyme. PCSK2 is a major proteolytic processing enzyme of the regulated secretory pathway of the neuroendocrine system, where it generates a number of hormones and neuropeptides (5). Products of PCSK2 processing include enkephalins, insulin, somatostatin, dynorphin, and LHRH. Within the region used as an immunogen, human PCSK2 shares 97% aa identity with mouse PCSK2.
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Lamango, N.S. et al. (1999) Arch. Biochem. Biophys. 362:275.
Zhu, X. and I. Lindberg (1995) J. Cell Biol. 129:1641.
Lamango, N. et al. (1996) Arch. Biochem. Biophys. 330:238.
Rouillé, Y. et al. (1995) Front. Neuroendocrinol. 16:322.
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