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F4425

Sigma-Aldrich

Fostriecin sodium salt from Streptomyces pulveraceus

≥98% (HPLC)

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Empirical Formula (Hill Notation):
C19H26NaO9P
CAS Number:
87860-39-7
Molecular Weight:
452.37
MDL number:
MFCD09971059
UNSPSC Code:
12352200
PubChem Substance ID:
24894863
NACRES:
NA.77

biological source

Streptomyces sp. (Streptomyces pulveraceous)

Quality Level

100

Assay

≥98% (HPLC)

form

solid

solubility

ethanol: soluble
methanol: soluble
water: soluble

storage temp.

−20°C

SMILES string

[Na+].C[C@@](O)(\C=C\[C@H]1CC=CC(=O)O1)[C@@H](C[C@@H](O)\C=C/C=C\C=C\CO)OP(O)([O-])=O

InChI

1S/C19H27O9P.Na/c1-19(23,12-11-16-9-7-10-18(22)27-16)17(28-29(24,25)26)14-15(21)8-5-3-2-4-6-13-20;/h2-8,10-12,15-17,20-21,23H,9,13-14H2,1H3,(H2,24,25,26);/q;+1/p-1/b3-2-,6-4+,8-5-,12-11+;/t15-,16+,17+,19+;/m0./s1

InChI key

XBUIKNRVGYFSHL-IAVQPKKASA-M

Application

Fostriecin has been used as a protein phosphatases type 2A (PP2A) inhibitor to study its effects on phosphorylated myosin light chain (pMLC) levels in axon initial segments (AIS). It has also been used as a PP2A inhibitor to study its effects on the regulation of protein kinase Akt (pAKT) by dopamine (DA) in larval zebrafish brain.

Biochem/physiol Actions

Fostriecin is a natural inhibitor of serine/ threonine phosphatases. It is a phosphate monoester produced by fermentation beer of Streptomyces pulveraceus. Fostriecin is a strong inhibitor of protein phosphatases type 2A and 4 (PP2A and PP4) and a weak inhibitor of protein phosphatases type 1 and 5 (PP1 and PP5). It exhibits anti-tumor activity against several tumor cells in vitro and L1210 and P388 leukemias in vivo. The anti-tumor activity of fostriecin is due to its ability to interfere with the reversible phosphorylation of proteins that are involved in the progression of the cell cycle. It also exhibits cytotoxic effects. Fostriecin can inhibit the DNA, RNA and protein synthesis.

Features and Benefits

This compound is featured on the Phosphoprotein Phosphatases (Serine/Threonine) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Packaging

Packaged under argon.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

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S S Stampwala et al.
The Journal of antibiotics, 36(12), 1601-1605 (1983-12-01)
A complex of structurally related compounds that exhibit in vivo antileukemic activity was isolated from fermentation broths of a new streptomycete. The components of this complex are water soluble phosphate esters containing a conjugated triene system. The isolation and characterization
A Cheng et al.
Cancer research, 58(16), 3611-3619 (1998-08-29)
Fostriecin, a structurally unique phosphate ester, is presently under evaluation in clinical trials to determine its potential use as an antitumor drug in humans. Fostriecin has been reported as having inhibitory activity against DNA topoisomerase type II and protein phosphatases
Structure-activity relationship studies of fostriecin, cytostatin, and key analogs, with PP1, PP2A, PP5, and (beta12-beta13)-chimeras (PP1/PP2A and PP5/PP2A), provide further insight into the inhibitory actions of fostriecin family inhibitors
Swingle M R, et al.
Journal of Pharmacology and Experimental Therapeutics, 331(1), 45-53 (2009)
Fostriecin, an antitumor antibiotic with inhibitory activity against serine/threonine protein phosphatases types 1 (PP1) and 2A (PP2A), is highly selective for PP2A
Walsh A, et al.
Febs Letters, 416(3), 230-234 (1997)
Localized myosin II activity regulates assembly and plasticity of the axon initial segment
Berger S L, et al.
Neuron, 97(3), 555-570 (2018)
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