Anti-TXNIP Antibody, clone JY2

Thioredoxin-interacting protein (UniProt Q9H3M7; also known as Thioredoxin-binding protein 2, Vitamin D3 up-regulated protein 1) is encoded by the TXNIP (also known as VDUP1) gene (Gene ID 10628) in human. Thioredoxin interacting protein (TXNIP) is an alpha-arrestin protein that acts as an oxidative stress mediator that binds thioredoxin active cysteine residue and suppresses its antioxidant activity. Interacts with COPS5 and restores COPS5-induced suppression of CDKN1B stability, blocking the COPS5-mediated translocation of CDKN1B from the nucleus to the cytoplasm. TXNIP over-expression results in increased cellular ROS level and oxidative cell death, while TXNIP suppression enhances cellular resistance to oxidative injury. TXNIP is also shown to inhibit cellular glucose uptake by downregulating plasma membrane localization of glucose transporter 1 (GLUT1). TXNIP is required for the maturation of natural killer cells. Its expression is markedly down-regulated in tumor cells and its levels are correlated with clinical stage of cancer. Mice with mutations or knockout of TXNIP gene are much more susceptible to carcinogenesis than wild-type mice, indicating its role in cancer suppression. Ref.: Masutani, H., et al. (2012). J. Clin. Biochem. Nutr. 50, 23-34.

Clone JY2 detected TXNIP in adult mouse cardiomyocytes. No TXNIP target band was detected in cardiomyocytes from Txnip-null mice (Yoshioka, J., et al. (2007). Circ. Res. 101(12):1328-1338).

Recombinant full-length human TXNIP protein.

Detect TXNIP/VDUP1 using this mouse monoclonal Anti-TXNIP Antibody, clone JY2, Cat. No. MABS1225, validated for use in Western Blotting.

Research Category
Signaling

Western Blotting Analysis: A representative lot detected full-length human TXNIP, but not human TXNIP constructs lacking C-terminal end a.a. 302-391 sequence, exogenously expressed in HEK293 cells (Yoshioka, J., et al. (2007). Circ. Res. 101(12):1328-1338).

Western Blotting Analysis: A representative lot detected TXNIP in adult mouse cardiomyocytes. No TXNIP target band was detected in cardiomyocytes from Txnip-null mice (Yoshioka, J., et al. (2007). Circ. Res. 101(12):1328-1338).

Evaluated by Western Blotting in HeLa cells.

Western Blotting Analysis: A 1:2,000 dilution of this antibody detected TXNIP in 10 µg of HeLa cell lysate.

~53 kDa observed. 43.66/37.32 kDa (human isoform 1/2) and 44.36/44.29 kDa (mouse isoform 1/2) calculated. Uncharacterized bands may be observed in some lysate(s).

Format: Purified

Protein G purified.

Purified mouse IgG1κ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Stable for 1 year at 2-8°C from date of receipt.

Concentration: Please refer to lot specific datasheet.

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