thap11 Antibody

Definition and Function of THAP11

THAP11 is a 34–44 kDa protein characterized by its DNA-binding THAP domain, which regulates transcriptional processes. It functions as a tumor suppressor by repressing c-Myc expression, influencing cell proliferation, apoptosis, and cell cycle arrest . The protein is ubiquitously expressed in normal tissues but is frequently downregulated in cancers such as hepatocellular carcinoma (HCC), colon cancer, and gastric cancer .

Applications of THAP11 Antibodies

THAP11 antibodies are used in various experimental techniques to detect and quantify the protein in cellular and tissue samples. Key applications include:

Research Findings

THAP11 antibodies have enabled critical insights into its role in cancer biology and transcriptional regulation:

• Tumor Suppression: Overexpression of THAP11 inhibits cancer cell growth by downregulating c-Myc, a proto-oncogene . Antibodies confirmed that THAP11 knockdown increases c-Myc expression and promotes proliferation in gastric cancer cells .

• Tissue-Specific Expression: IHC studies revealed elevated THAP11 levels in colon cancer metastases , while WB detected its downregulation in gastric cancer tissues .

• Transcriptional Regulation: Co-immunoprecipitation assays using THAP11 antibodies identified its interaction with HCF-1, a coregulator of gene expression .

Challenges and Considerations

• Specificity: Ensure antibodies are validated for cross-reactivity, as THAP11 shares structural homology with other THAP family proteins .

• Optimization: Dilutions and protocols must be tailored for each application, as recommended by manufacturers .