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TAG-72 Antibody

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.

Product Specifications

CAS Number

9007-83-4

Specifications

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.

Host

Mouse

Reactivity

Human

Immunogen

The membrane-enriched fraction of a human breast carcinoma liver metastasis was used as the immunogen for this TAG-72 antibody.

Clonality

Monoclonal

Isotype

IgG1 k

Clone

B72.3

Applications

IHC-P

Purity

Protein G affinity chromatography

Format

Purified

Buffer

Prediluted in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide; *For IHC use only*

Reconstitution

Store the TAG-72 antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).

Limitations

This TAG-72 antibody is available for research use only.

Storage Conditions

Store the TAG-72 antibody at 2-8°C (with azide) or aliquot and store at -20°C or colder (without azide) .

Formulation

Prediluted in 1X PBS, 0.1 mg/mL BSA (US sourced), 0.05% sodium azide; *For IHC use only*

Location

Cytoplasmic and cell surface

Image Legend

IHC staining of human ovarian carcinoma with TAG-72 antibody (clone B72.3) .

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