Chromogranin A Antibody

SKU: orb749462

Description

Chromogranin A is present in neuroendocrine cells throughout the body, including the neuroendocrine cells of the large and small intestine, adrenal medulla and pancreatic islets. It is an excellent marker for carcinoid tumors, pheochromocytomas, paragangliomas, and other neuroendocrine tumors. Co-expression of chromogranin A and neuron specific enolase (NSE) is common in neuroendocrine neoplasms. Reportedly, co-expression of certain keratins and chromogranin indicates neuroendocrine lineage. The presence of strong anti-chromogranin staining and absence of anti-keratin staining should raise the possibility of paraganglioma. The co-expression of chromogranin and NSE is typical of neuroendocrine neoplasms. Most pituitary adenomas and prolactinomas readily express chromogranin.

Research Area

Epigenetics

Images & Validation

• Tested Applications: IHC-P, WB
• Dilution Range: Western blot: 0.5-1ug/ml,Immunohistochemistry (FFPE): 0.5-1ug/ml for 30 min at RT
• Reactivity: Human
• Application Notes:
  Optimal dilution of the Chromogranin A antibody should be determined by the researcher.1. Staining of formalin-fixed tissues requires boiling tissue sections in 10mM Citrate buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 min2. The prediluted format is supplied in a dropper bottle and is optimized for use in IHC. After epitope retrieval step (if required), drip mAb solution onto the tissue section and incubate at RT for 30 min.

Key Properties

• Antibody Type: Primary Antibody
• Host: Mouse
• Clonality: Monoclonal
• Isotype: Mouse IgG1, kappa
• Clone No.: CHGA/777
• Immunogen: Recombinant full-length human protein was used as the immunogen for the Chromogranin A antibody.
• Purification: Protein G affinity chromatography
• Conjugation: Unconjugated

Storage & Handling

• Storage: Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
• Buffer/Preservatives: 0.2 mg/ml in 1X PBS with 0.1 mg/ml rAlbumin and 0.05% sodium azide
• Expiration Date: 12 months from date of receipt.
• Disclaimer: For research use only

IHC: Formalin-paraffin human pheochromocytoma stained with Chromogranin A antibody (CHGA/777)

Western blot of human Panc-1 cell lysate and Chromogranin A antibody (CHGA/777). Predicted molecular weight ~50kDa.

IHC: Formalin-fixed, paraffin-embedded human pancreas stained with Chromogranin A antibody (CHGA/777)

IHC: Formalin-fixed, paraffin-embedded human adrenal gland stained with Chromogranin A antibody (CHGA/777)

Quick Database Links

UniProt

P10645