General description

Forkhead box A1 (FOXA1), also known as hepatocyte nuclear factor 3 alpha(HNF3a), is a transcription factor expressed in normal breast ductal epithelium and other epithelium in different organs, such as lung, pancreas, bladder, prostate, and colon. It has been reported to co-express with ER in breast carcinoma, predominantly in luminal subtype A. FOXA1 expression has been identified in 42% - 75% of invasive carcinoma of the breast. Of the FOXA1-positive breast invasive carcinomas, 83% were comprised of ER+/PR+/Her2+ luminal A subtype. The results indicate that anti-FOXA1 is useful in the sub-classification of breast carcinoma.

Legal Information

Cell Marque is a trademark of Sigma-Aldrich Co. LLC

Linkage

FOXA1 Positive Control Slides, Product No. 405S, are available for immunohistochemistry (formalin-fixed, paraffin-embedded sections).

Other Notes

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Physical form

Solution in Tris Buffer, pH 7.3-7.7, with 1% BSA and ﹤0.1% Sodium Azide

Preparation Note

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Quality