Immunoperoxidase staining of formalin fixed, paraffin-embedded human nasopharynx tissue showing cytoplasmic and nuclear staining of respiratory epithelial cells.
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); and secretogranin III (Sg III or SCG3). High levels of Chr-A expression are 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.
Key Feature
Clonality
Polyclonal
Isotype
IgG
Host Species
Rabbit
Tested Applications
WBIPIFIHCELISA
recommended for detection of Secretogranin II of mouse, rat and human origin by WB, IP, IF, IHC(P) and ELISA also reactive with additional species, including equine, canine, bovine and porcine
Species Reactivity
HumanMouseRat
Concentration
1mg/ml
Purification
Affinity purified
Target Information
Alternative Names
epitope corresponding to amino acids 1-300 mapping at the N-terminus of Sg II of human origin
Tissue Specificity
epitope corresponding to amino acids 1-300 mapping at the N-terminus of Sg II of human origin
Immunoperoxidase staining of formalin fixed, paraffin-embedded human nasopharynx tissue showing cytoplasmic and nuclear staining of respiratory epithelial cells.
Application Notes
recommended for detection of Secretogranin II of mouse, rat and human origin by WB, IP, IF, IHC(P) and ELISA also reactive with additional species, including equine, canine, bovine and porcine
Additional Information
Form
Liquid
Storage Instructions
For short-term storage, store at 4° C. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.