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Activators & Inhibitors
Chemical Modulators

Tunicamycin #12819

Citations (0)
Chemical structure of Tunicamycin.
Western blot analysis of C2C12 cell extracts, untreated (-) or treated with Tunicamycin (2 μg/ml, 8 hr; +), using CHOP (D46F1) Rabbit mAb #5554 (upper) or β-Actin Antibody #4967 (lower).

Product Usage Information

Tunicamycin is supplied as a lyophilized powder. For a 5 mg/ml stock, reconstitute the 5 mg in 1 ml DMSO. Working concentrations and length of treatments vary depending on the desired effect, but it is typically used at 0.1-10 μg/ml for 0.5-20 hours.

Solubility: Soluble in DMSO, DMF or Pyridine.


Store lyophilized or in solution at -20ºC, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, use within 3 months to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.

Product Description

Molecular Weight 830.9 g/mol
Purity >98%
Molecular Formula Homolog A: C37H60N4O16 Homolog B: C38H62N4O16 Homolog C: C39H64N4O16 Homolog D: C40H66N4O16
CAS 11089-65-9
Solubility Soluble in DMSO at 40mg/ml and EtOH at 5mg/ml.


Isolated from Streptomyces lysosuperificus, tunicamycin is a nucleoside antibiotic that inhibits N-linked glycosylation in glycoprotein synthesis. Composed of tunicamycins A, B, C and D, the compound competitively blocks the transfer of N-acetylglucosamine-1-phosphate (GlcNAc-1-P) from UDP-GlcNAc to dolichol-P (1,2). By preventing glycoprotein synthesis, tunicamycin inhibits the formation of the “viral coat” known as the tunica or capsid in both RNA and DNA viruses, and thus exhibits antiviral properties (3). Research studies have shown that tunicamycin will arrest cells in G1 phase, preventing them from entering S-phase and increasing the expression of PERK (4,5). Following N-linked glycosylation inhibition, tunicamycin induces autophagy in response to ER stress, ultimately upregulating CHOP and BIP (6,7).

Limited Uses

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For Research Use Only. Not for Use in Diagnostic Procedures.
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To Purchase # 12819
Cat. # Size Qty. Price
5 mg