Recombinant TAG-72 Antibody

SKU: orb639619

Description

This antibody recognizes an oncofetal antigen of 220kDa, identified as a tumor-associated glycoprotein (TAG-72) with properties of a mucin. This antibody defines the mucin-carried sialylated-Tn epitope. TAG-72 is usually expressed by adenocarcinomas, but is negative in mesotheliomas. Studies have reported that this antibody has 80% sensitivity and 93% specificity for pulmonary adenocarcinoma. Therefore, TAG-72 is a useful marker to distinguish between mesothelioma and adenocarcinoma. However, false positive reactions can occur so results must be interpreted with the utmost caution. This antibody may be useful in the differentiation of non-small cell carcinomas from small cell carcinomas of the lung. The combined use of TAG-72 Ab with a GCDFP-15 Ab is valuable in the diagnosis of apocrine carcinoma.

Images & Validation

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Tested Applications	IHC-P
Dilution Range	Immunohistochemistry (FFPE): 1-2ug/ml
Reactivity	Human
Application Notes	Optimal dilution of the recombinant TAG-72 antibody should be determined by the researcher.

Key Properties

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Antibody Type	Primary Antibody
Host	Mouse
Clonality	Recombinant
Isotype	Mouse IgG1, kappa
Clone No.	rB72.3
Immunogen	The membrane-enriched fraction of a human breast carcinoma liver metastasis was used as the immunogen for this recombinant TAG-72 antibody.
Purification	Protein G affinity chromatography
Conjugation	Unconjugated

Storage & Handling

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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

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IHC staining of human breast carcinoma with recombinant TAG-72 antibody (clone rB72.3). HIER: boil tissue sections in pH9 10mM Tris with 1mM EDTA for 10-20 min and allow to cool before testing.

SDS-PAGE analysis of purified, BSA-free recombinant TAG-72 antibody (clone rB72.3) as confirmation of integrity and purity.

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Protocol Information

IHC-P

Immunohistochemistry Paraffin

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