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Merck

T8902

Thiostrepton from Streptomyces azureus

from Streptomyces azureus, ≥90% (HPLC), powder, FoxM1 inhibitor

Synonym(s):

Bryamycin, NSC 170365, NSC 81722, Thiactin, Thiostreptin A

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About This Item

Empirical Formula (Hill Notation):
C72H85N19O18S5
CAS Number:
1393-48-2
Molecular Weight:
1664.89
NACRES:
NA.77
PubChem Substance ID:
24900569
UNSPSC Code:
12352200
EC Number:
215-734-9
MDL number:
MFCD00135828

Key Documents

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Product Name

Thiostrepton from Streptomyces azureus, ≥90% (HPLC)

InChI

1S/C72H85N19O18S5/c1-14-26(3)47-63(105)78-30(7)57(99)75-28(5)56(98)76-31(8)58(100)91-72-19-18-40(66-85-43(22-111-66)59(101)77-29(6)55(97)74-27(4)54(73)96)81-52(72)42-21-112-67(83-42)49(34(11)109-69(107)41-20-37(32(9)92)36-16-17-39(79-47)51(95)50(36)80-41)89-60(102)44-24-113-68(86-44)53(71(13,108)35(12)94)90-62(104)45-23-110-65(84-45)38(15-2)82-64(106)48(33(10)93)88-61(103)46-25-114-70(72)87-46/h15-17,20-22,24-26,30-35,39,45,47-49,51-53,79,92-95,108H,4-6,14,18-19,23H2,1-3,7-13H3,(H2,73,96)(H,74,97)(H,75,99)(H,76,98)(H,77,101)(H,78,105)(H,82,106)(H,88,103)(H,89,102)(H,90,104)(H,91,100)/b38-15-

InChI key

NSFFHOGKXHRQEW-BXVAPQLOSA-N

SMILES string

CCC(C)C1NC2C=Cc3c(cc(nc3C2O)C(=O)OC(C)C4NC(=O)c5csc(n5)C(NC(=O)C6CSC(=N6)C(\NC(=O)C(NC(=O)c7csc(n7)C8(CCC(=NC8c9csc4n9)c%10nc(cs%10)C(=O)NC(=C)C(=O)NC(=C)C(N)=O)NC(=O)C(C)NC(=O)C(=C)NC(=O)C(C)NC1=O)C(C)O)=C\C)C(C)(O)C(C)O)C(C)O

assay

≥90% (HPLC)

solubility

acetic acid: soluble 25 mg/mL, clear to hazy, yellow to brownish-yellow

antibiotic activity spectrum

Gram-negative bacteria, Gram-positive bacteria, parasites

mode of action

protein synthesis | interferes

storage temp.

−20°C

Quality Level

200

Related Categories

General description

Chemical structure: peptide

Application

Thiostrepton has been used as a selectable marker for recombinant Streptomyces cultures,,.

Biochem/physiol Actions

Peptide antibiotic that prevents the binding of elongation factor G (EF-G) and GTP to the 50S ribosomal subunit.

Preparation Note

Thiostrepton dissolves in acetic acid at 25 mg/ml to yield a clear to hazy, yellow-yellow brown solution.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
0000466649
0000466649
MKCX0672
MKCW5955
MKCS9195

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M L Chiu et al.
The Journal of biological chemistry, 274(29), 20578-20586 (1999-07-10)
Microbial metabolites isolated in screening programs for their ability to activate transcription of the tipA promoter (ptipA) in Streptomyces lividans define a class of cyclic thiopeptide antibiotics having dehydroalanine side chains ("tails"). Here we show that such compounds of heterogeneous
Kheng Newick et al.
PloS one, 7(6), e39404-e39404 (2012-07-05)
Thiostrepton (TS) is a thiazole antibiotic that inhibits expression of FOXM1, an oncogenic transcription factor required for cell cycle progression and resistance to oncogene-induced oxidative stress. The mechanism of action of TS is unclear and strategies that enhance TS activity
Takamichi Ito et al.
Scientific reports, 14(1), 4048-4048 (2024-02-20)
Extramammary Paget disease (EMPD) is a rare skin cancer that primarily affects older individuals predominantly in areas with apocrine sweat glands. Although most early EMPD lesions are indolent, patients with metastatic EMPD have a poor prognosis due to the lack
Lucio Rivera-Santiago et al.
Frontiers in cellular and infection microbiology, 12, 907043-907043 (2022-07-26)
Trypanosoma cruzi, the causal agent of Chagas disease, has peroxiredoxins (PRXs) expressed in all stages of the parasite and whose function is to detoxify oxidizing agents, such as reactive oxygen species (ROS). These proteins are central for the survival and
Antje Wolf et al.
Bioorganic & medicinal chemistry, 20(24), 7194-7205 (2012-10-31)
The thiostrepton antibiotic inhibits bacterial protein synthesis by binding to a cleft formed by the ribosomal protein L11 and 23S's rRNA helices 43-44 on the 70S ribosome. It was proposed from crystal structures that the ligand restricts L11's N-terminal movement
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