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Merck

T7765

Tunicamycin

from Streptomyces sp., ≥98% (HPLC), powder, N-acetylglucosamine transferase inhibitor

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About This Item

CAS Number:
11089-65-9
UNSPSC Code:
51111800
PubChem Substance ID:
57654701
NACRES:
NA.77
Beilstein/REAXYS Number:
6888090
MDL number:
MFCD00065709
Quality level:
300

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Product Name

Tunicamycin from Streptomyces sp.,

SMILES string

CC(C)CCCCCCCC\C=C\C(=O)N[C@@H]1[C@@H](O)[C@@H](O)[C@@H](C[C@@H](O)[C@H]2O[C@H]([C@H](O)[C@@H]2O)N3C=CC(=O)NC3=O)O[C@H]1O[C@@H]4O[C@@H](CO)[C@H](O)[C@@H](O)[C@@H]4NC(C)=O

InChI

1S/C37H60N4O16/c1-18(2)12-10-8-6-4-5-7-9-11-13-23(45)39-26-30(50)27(47)21(54-36(26)57-35-25(38-19(3)43)29(49)28(48)22(17-42)55-35)16-20(44)33-31(51)32(52)34(56-33)41-15-14-24(46)40-37(41)53/h11,13-15,18,20-22,25-36,42,44,47-52H,4-10,12,16-17H2,1-3H3,(H,38,43)(H,39,45)(H,40,46,53)/b13-11+/t20-,21-,22+,25+,26-,27+,28+,29+,30-,31+,32-,33-,34-,35+,36+/m1/s1

InChI key

YJQCOFNZVFGCAF-WPTOCQRYSA-N

solubility

95% ethanol: soluble 1 mg/mL, clear to faintly hazy, THF: soluble <1 mg/mL, dioxane: soluble <1 mg/mL, DMF: soluble >10 mg/mL, pyridine: >10 mg/mL, DMSO: soluble 4.9-5.1 mg/mL, clear to slightly hazy, colorless to yellow, methanol: slightly soluble 4.9-5.1 mg/mL, methanol: soluble 4.9-5.1 mg/mL, clear to slightly hazy, colorless to yellow, acetone: insoluble, aqueous base: insoluble, chloroform: insoluble, ethyl acetate: insoluble

antibiotic activity spectrum

fungi, viruses

mode of action

protein synthesis | interferes

storage temp.

2-8°C

Quality Level

300

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General description

Chemical structure: nucleoside
Contains homologues A,B,C, and D. Composition may vary from lot to lot. Actual content given on label.
Tunicamycin is an antibiotic and a glycosylation inhibitor. Its mode of action includes blocking human UDP-HexNAc:polyprenol-P HexNAc-1-P enzymes in the enzyme GlcNAc phosphotransferase (GPT). Glycosylation is a major post-translational modification that plays a critical role in glycoprotein folding, stability, and subcellular localization, as well as in the biological functions of the glycoprotein. Abnormal glycosylation has been identified as a signature of cancer and has been shown to play a significant role in tumor progression, metastasis, and chemoresistance. Research shows tunicamycin exhibits antitumor action. Furthermore, tunicamycin inhibition of N-glycosylation ultimately results in the build-up of unstructured proteins in the endoplasmic reticulum (ER) lumen, potentially leading to ER stress. Tunicamycin also exhibits antibacterial and antifungal actions. It blocks the formation of protein N-glycosidic linkages by inhibiting the transfer of N-acetylglucosamine 1-phosphate to dolichol monophosphate. Tunicamycin also Inhibits bacterial and eukaryote N-acetylglucosamine transferases and prevents the formation of N-acetylglucosamine lipid intermediates.

Application

Tunicamycin has been used to study the effect of N-linked glycosylation of human proton-coupled folate transporter (HsPCFT) in HeLa cells. Tunicamycin has also been used to study the functional effects of coxsackievirus and adenovirus receptor (CAR) glycosylation in COS-7 cells. Tunicamycin from Streptomyces sp. has been used to inhibit N-glycosylation in cell culture experiments.

Biochem/physiol Actions

Blocks the formation of protein N-glycosidic linkages.

Preparation Note

Tunicamycin dissolves in DMSO at 4.9-5.1 mg/ml and yields a clear to very slightly hazy, colorless to yellow solution. Furthermore, tunicamycin is soluble in DMF (>10 mg/ml), pyridine (>10 mg/ml), water (<5 mg/ml, pH 9.0), dioxane (<1 mg/ml) and THF. However, it is insoluble in other organic solvents such as acetone, chloroform, and ethyl acetate, and in aqueous solutions with pH <6. Aqueous solutions can be prepared from stock solutions by diluting with water at pH 8-10 or with buffers with pH >7, preferably >8. Tunicamycin will not dissolve in phosphate buffer, pH 8, at 1 mg/ml, even with heating, but solubility can be achieved by raising the pH to 9 and back titrating to pH 7-8.

pictograms

Skull and crossbones
GHS06

signalword

Danger

hcodes

H300

Hazard Classifications

Acute Tox. 1 Oral

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

T7765-5MG: + T7765-50MG-PW: + T7765-1MG: + T7765-VAR: + T7765-5MG-PW: + T7765-10MG: + T7765-1MG-PW: + T7765-10MG-PW: + T7765-50MG: + T7765-BULK:

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Certificates of Analysis (COA)

Lot/Batch Number
0000492573
0000492573
0000478977
0000478977
0000455924

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Ersin Selcuk Unal et al.
Biochimica et biophysica acta, 1778(6), 1407-1414 (2008-04-15)
The human proton-coupled folate transporter (HsPCFT, SLC46A1) mediates intestinal absorption of folates and transport of folates into the liver, brain and other tissues. On Western blot, HsPCFT migrates as a broad band (~55 kDa), higher than predicted (~50 kDa) in
Mark E Lauer et al.
The Journal of biological chemistry, 284(8), 5299-5312 (2008-12-18)
Asthmatic attacks often follow viral infections with subsequent airway smooth muscle cell proliferation and the formation of an abnormal hyaluronan extracellular matrix with infiltrated leukocytes. In this study, we show that murine airway smooth muscle cells (MASM) treated with polyinosinic
Yann Estornes et al.
Cell death & disease, 9(5), 494-494 (2018-05-03)
The sensitivity of cells to death receptor-induced apoptosis is commonly controlled by multiple checkpoints in order to limit induction of excessive or unnecessary death. Although cytotoxic in various cancer cells, tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) does not trigger
Bei Zhou et al.
International journal of biological sciences, 15(9), 1905-1920 (2019-09-17)
The mechanisms of resistance to the targeted drug sorafenib in the treatment of hepatocellular carcinoma (HCC) are poorly understood. The purpose of this study was to investigate the mechanism of sorafenib resistance and to elucidate the role of melatonin in
Katherine J D Ashbourne Excoffon et al.
Journal of virology, 81(11), 5573-5578 (2007-03-23)
The coxsackievirus and adenovirus receptor (CAR) is both a viral receptor and homophilic adhesion protein. The extracellular portion of CAR consists of two immunoglobulin (Ig)-like domains, each with a consensus sequence for N-glycosylation. We used chemical, genetic, and biochemical studies
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