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Merck

C9492

Sigma-Aldrich

Chaetocin from Chaetomium minutum

≥95% (HPLC)

Sinónimos:

(+)-Chaetocin A

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About This Item

Fórmula empírica (notación de Hill):
C30H28N6O6S4
Número de CAS:
Peso molecular:
696.84
MDL number:
UNSPSC Code:
12352202
PubChem Substance ID:
NACRES:
NA.77

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Quality Level

assay

≥95% (HPLC)

form

powder

storage temp.

2-8°C

SMILES string

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

InChI key

PZPPOCZWRGNKIR-UHFFFAOYSA-N

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General description

Chaetocin is a fungal metabolite with antimicrobial and cytostatic activity.[1] It belongs to the 3,6-epidithio-diketopiperazines class[2] of which gliotoxin, sporidesmin, aranotin, oryzachloride, verticillin A and the melinacidins are members.[3] 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.[4] It has also been used to determine the biological functions of OS-induced heterochromatin formation.[5]

Biochem/physiol Actions

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.[2]
Chaetocin is an antibacterial mycotoxin.[6] It is a specific inhibitor of lysine-specific histone methyltransferase making the compound useful in the study of heterochromatin mediated gene repression.[7] Chaetocin is a selective competitive inhibitor of thioredoxin reductase-1 (TrxR1), a putative mechanism of its anticancer activity.[8]
Methyltransferase making the compound useful in the study of heterochromatin mediated gene repression.[7]

Preparation Note

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

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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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
Romains Joubert et al.
Journal of personalized medicine, 11(1) (2020-12-31)
Facioscapulohumeral dystrophy (FSHD, OMIM: 158900, 158901) is the most common dystrophy in adults and so far, there is no treatment. Different loci of the disease have been characterized and they all lead to the aberrant expression of the DUX4 protein
Heterochromatin protects retinal pigment epithelium cells from oxidative damage by silencing p53 target genes
Gong L, et al.
Proceedings of the National Academy of Sciences of the USA, 115(17), E3987-E3995 (2018)
Xiao-Gang Weng et al.
Theriogenology, 146, 162-170 (2019-12-04)
Aberrant epigenetic reprogramming is a major cause of the developmental failure of embryos after somatic cell nuclear transfer (SCNT). Histone H3 lysine 9 trimethylation (H3K9me3), a histone marker of transcriptional repression, is considered a key barrier to the development of

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