Chromogranin A Recombinant Rabbit monoclonal Antibody IgG
Fig1: Western blot analysis of Chromogranin A on PC-12 cells lysates using anti-Chromogranin A antibody at 1/1,000 dilution.
Fig2: ICC staining Chromogranin A in PC-3M cells (red). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
Fig3: Immunohistochemical analysis of paraffin-embedded human pancreas tissue using anti-Chromogranin A antibody. Counter stained with hematoxylin.
Host Species; Species ReactivityRabbit; Human
Application SummaryWB, ICC/IF, IHC
Purification; FormulationProA affinity purified; 1*TBS (pH7.4), 1%BSA, 40%Glycerol. Preservative: 0.05% Sodium Azide.; Liquid form.
ALTnamesPituitary secretory protein I
BackgroundChromogranins (secretogranins) are acidic glycoproteins that localize within secretory granules of endocrine, neuroendocrine and neuronal tissue. Family members include chromogranin A (Chr-A), chromogranin B (Chr-B, also known as secretogranin I) chromogranin C (also known as secretogranin II or Sg II), secretogranin III (Sg III or SCG3). High levels of Chr-A expression is a characteristic of neuroendocrine tumors. Pancreastatin is a peptide derived from Chr-A which inhibits insulin secretion, exocrine pancreatic secretion and gastric acid secretion. Pancreastatin exists as two forms; the major form is expressed in stomach and colon extracts. In neuroendocrine cells the level Sg II has been shown to increase four-fold in response to histamine, while levels of Chr-A and Chr-B showed little or no increase. Sg III is an acidic secretory protein expressed in neuronal and endocrine cells. In the anterior lobe of the rat pituitary gland, Sg III is present in mammotropes and thyrotropes, moderately in gonadotropes and corticotropes, though not in somatotropes. Sg III and carboxypeptidase E (CPE) bind specifically to cholesterol-rich secretory granule (SG) membranes.(ET1703-08)