Chromogranin A Antibody

• Catalog Number: orb606535
• Category: Antibodies
• 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.
• Clonality: Recombinant
• Species/Host: Mouse
• Isotype: Mouse IgG1, kappa
• Conjugation: Unconjugated
• Reactivity: Human, Rat
• Immunogen: Recombinant human full-length protein was used as the immunogen for the recombinant Chromogranin A antibody.
• UniProt ID: P10645
• Tested applications: IHC-P
• Dilution range: Immunohistochemistry (FFPE): 0.25-0.5ug/ml for 30 min at RT
• Application notes: Optimal dilution of the recombinant Chromogranin A antibody should be determined by the researcher.
• Antibody Type: Primary Antibody
• Clone Number: rCHGA/798
• Formula: 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide
• 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.
• Research Area: Epigenetics
• Note: For research use only

IHC staining of FFPE human pancreas with recombinant Chromogranin A antibody (clone rCHGA/798). HIER: boil tissue sections in pH6, 10mM citrate buffer, for 10-20 min followed by cooling at RT for 20 min.

Analysis of HuProt (TM) microarray containing more than 19, 000 full-length human proteins using recombinant Chromogranin A antibody (clone rCHGA/798). These results demonstrate the foremost specificity of the rCHGA/798 mAb. Z- and S- score: The Z-score represents the strength of a signal that an antibody (in combination with a fluorescently-tagged anti-IgG secondary Ab) produces when binding to a particular protein on the HuProt (TM) array. Z-scores are described in units of standard deviations (SD's) above the mean value of all signals generated on that array. If the targets on the HuProt (TM) are arranged in descending order of the Z-score, the S-score is the difference (also in units of SD's) between the Z-scores. The S-score therefore represents the relative target specificity of an Ab to its intended target.

SDS-PAGE analysis of purified, BSA-free recombinant Chromogranin A antibody (clone rCHGA/798) as confirmation of integrity and purity.