The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Use at an assay dependent concentration.
Use a concentration of 1 µg/ml. Detects a band of approximately 37 kDa (predicted molecular weight: 33 kDa). Good results were obtained when blocked with 5% non-fat dry milk in 0.05% PBS-T.
Transcriptional repressor. MXI1 binds with MAX to form a sequence-specific DNA-binding protein complex which recognizes the core sequence 5'-CAC[GA]TG-3'. MXI1 thus antagonizes MYC transcriptional activity by competing for MAX.
High levels found in the brain, heart and lung while lower levels are seen in the liver, kidney and skeletal muscle.
Involvement in disease
Defects in MXI1 may be a cause of susceptibility to prostate cancer (PC) [MIM:176807]. It is a malignancy originating in tissues of the prostate. Most prostate cancers are adenocarcinomas that develop in the acini of the prostatic ducts. Other rare histopathologic types of prostate cancer that occur in approximately 5% of patients include small cell carcinoma, mucinous carcinoma, prostatic ductal carcinoma, transitional cell carcinoma, squamous cell carcinoma, basal cell carcinoma, adenoid cystic carcinoma (basaloid), signet-ring cell carcinoma and neuroendocrine carcinoma.
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human lung tissue labelling MXI1 with ab28740 at 4-8µg/ml. Positively labelled cells are (indicated by arrows) are bronchiole epithelial cells. Magnification: X400.
Western blot - MXI1 antibody (ab28740)
Anti-MXI1 antibody (ab28740) at 1 µg/ml + Foetal brain lysate