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C9492

Sigma-Aldrich

Chaetocin from Chaetomium minutum

≥95% (HPLC)

Synonyme(s) :

(+)-Chaetocin A

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About This Item

Formule empirique (notation de Hill):
C30H28N6O6S4
Numéro CAS:
28097-03-2
Poids moléculaire :
696.84
Numéro MDL:
MFCD00133163
Code UNSPSC :
12352202
ID de substance PubChem :
24893002
Nomenclature NACRES :
NA.77

Niveau de qualité

200

Pureté

≥95% (HPLC)

Forme

powder

Température de stockage

2-8°C

Chaîne SMILES 

CN1C(=O)C23CC4(C(Nc5ccccc45)N2C(=O)C1(CO)SS3)C67CC89SSC(CO)(N(C)C8=O)C(=O)N9C6Nc%10ccccc7%10

InChI

1S/C30H28N6O6S4/c1-33-21(39)27-11-25(15-7-3-5-9-17(15)31-19(25)35(27)23(41)29(33,13-37)45-43-27)26-12-28-22(40)34(2)30(14-38,46-44-28)24(42)36(28)20(26)32-18-10-6-4-8-16(18)26/h3-10,19-20,31-32,37-38H,11-14H2,1-2H3

Clé InChI

PZPPOCZWRGNKIR-UHFFFAOYSA-N

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Catégories apparentées

Description générale

Chaetocin is a fungal metabolite with antimicrobial and cytostatic activity. It belongs to the 3,6-epidithio-diketopiperazines class of which gliotoxin, sporidesmin, aranotin, oryzachloride, verticillin A and the melinacidins are members. Chaetocin is a molecular dimer of two five-membered rings cis fused.

Application

Chaetocin from Chaetomium minutum has been used to determine its effects on sensitization of various cells. It has also been used to determine the biological functions of OS-induced heterochromatin formation.

Actions biochimiques/physiologiques

Chaetocin is a competitive inhibitor for S-adenosylmethionine. The specificity of chaetocin for SU(VAR)3-9 makes this compound an excellent tool for the study of heterochromatin-mediated gene repression.
Chaetocin is an antibacterial mycotoxin. It is a specific inhibitor of lysine-specific histone methyltransferase making the compound useful in the study of heterochromatin mediated gene repression. Chaetocin is a selective competitive inhibitor of thioredoxin reductase-1 (TrxR1), a putative mechanism of its anticancer activity.
Methyltransferase making the compound useful in the study of heterochromatin mediated gene repression.

Notes préparatoires

Soluble in DMSO. At 1 mg/ml the solution is stable for 1 week at 2-8 °C.

Pictogrammes

Exclamation mark
GHS07

Mention d'avertissement

Warning

Mentions de danger

H302

Classification des risques

Acute Tox. 4 Oral

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves

Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Sophie Bouchat et al.
AIDS (London, England), 26(12), 1473-1482 (2012-05-05)
Reactivation of HIV-1 expression in persistent reservoirs together with an efficient HAART has been proposed as an adjuvant therapy aimed at reaching a functional cure for HIV. Previously, H3K9 methylation was shown to play a major role in chromatin-mediated repression
Jennifer D Tibodeau et al.
Antioxidants & redox signaling, 11(5), 1097-1106 (2008-11-13)
We recently reported that the antineoplastic thiodioxopiperazine natural product chaetocin potently induces cellular oxidative stress, thus selectively killing cancer cells. In pursuit of underlying molecular mechanisms, we now report that chaetocin is a competitive and selective substrate for the oxidative
The epipolythiodioxopiperazine (ETP) class of fungal toxins: distribution, mode of action, functions and biosynthesis
Gardiner D M, et al.
Microbiology, 151(4), 1021-1032 (2005)
The molecular structure and absolute configuration of chaetocin
Weber H P
Acta Crystallographica Section B, Structural Crystallography and Crystal Chemistry, 28(10), 2945-2951 (1972)
Dorothea Greiner et al.
Nature chemical biology, 1(3), 143-145 (2006-01-13)
Histone methylation plays a key role in establishing and maintaining stable gene expression patterns during cellular differentiation and embryonic development. Here, we report the characterization of the fungal metabolite chaetocin as the first inhibitor of a lysine-specific histone methyltransferase. Chaetocin
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