Chromogranin A Antibody

• Catalog Number: orb2640710
• Category: Antibodies
• Description: Chromogranin A / CHGA 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.
• Species/Host: Mouse
• Clonality: Recombinant
• Clone Number: rCHGA/777
• Tested applications: IHC-P
• Reactivity: Human
• Isotype: Mouse IgG1, kappa
• Immunogen: Recombinant human protein was used as the immunogen for the recombinant CHGA antibody.
• Antibody Type: Primary Antibody
• Dilution range: Immunohistochemistry (FFPE): 0.5-1ug/ml for 30 min at RT
• Purity: Protein G affinity chromatography
• Conjugation: Unconjugated
• Formula: 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide
• Hazard Information: This recombinant CHGA antibody is available for research use only.
• UniProt ID: P10645
• 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 (US sourced) and 0.05% sodium azide
• Note: For research use only
• Application notes: Optimal dilution of the recombinant CHGA antibody should be determined by the researcher.1. 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.
• Expiration Date: 12 months from date of receipt.

IHC testing of human pancreas tissue with recombinant CHGA antibody (rCHGA/777). Required HIER: boil tissue sections in 10mM citrate buffer, pH6, for 10-20 min followed by cooling at RT for 20 min.

SDS-PAGE analysis of purified, BSA-free recombinant CHGA antibody (clone rCHGA/777) as confirmation of integrity and purity.