Mouse monoclonal [CHGB/4560] antibody to Chromogranin B.
Spécificité
Chromogranins (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.
Applications
ELISA
Contrôle positif
Expressed in the adrenal medulla, and in pheochromocytoma. Not expressed in liver.
Reactivité
Human
Immunogène
Recombinant fragment (around Amino Acids 250-450) of human CHGB protein. The exact sequence is proprietary.
Hôte
Mouse
Clonalité
Monoclonal
Clone
CHGB/4560
Isotype
IgG
Chaînes légères
kappa
Conjuguer
Unconjugated
Purification
Protein A/G chromatography.
Concentration
200 µg/ml
Masse moléculaire
76 kDa / 110 kDa
Forme du produit
Liquid
Formulation
Supplied in 10mM Phosphate Buffered Saline with 0.05% BSA and 0.05% Sodium Azide.
Stockage
Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.