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HomeProduct name listLATRUNCULIN A

LATRUNCULIN A

Synonym(s):[1R-[1R*, 4Z, 8E, 10Z, 12S*, 15R*, 17R*(R*)]]-4-(17-Hydroxy-5,12-dimethyl-3-oxo-2,16-dioxabicyclo[13.3.1]nonadeca-4,8,10-trien-17-yl)-2-thiazolidinone;LAT-A;Latrunculin A, Latrunculia magnifica - CAS 76343-93-6 - Calbiochem

LATRUNCULIN A Structural

What is LATRUNCULIN A?

Description

Actin disruption is used to study cell functions in vitro (e.g., migration, endocytosis) and in vivo (e.g., tumor cell invasion). Latrunculin A is a bioactive 2-thiazolidinone macrolide derived from sponges that sequesters G-actin and prevents F-actin assembly. It binds monomeric actin with 1:1 stoichiometry and can be used to block actin polymerization both in vitro (Kd = 0.2 μM) and in cells (0.5 μM, 30 min).{ Latrunculin A (1-10 μM) causes depolymerization of tumor cell cytoskeleton within ten minutes. Overnight treatment of cells with latrunculin A (10 μM) strongly suppresses actin synthesis. Prolonged cell treatment blocks dexamethasone-induced changes in actin cytoskeleton with no effect on cell viability.

The Uses of LATRUNCULIN A

Latrunculin A, Latrunculia magnifica is a stabilizer of monomeric G-actin and polymerization inhibitor.

The Uses of LATRUNCULIN A

Latrunculin A has been used as medium supplementation for A549 cells to determine the internalization mechanism of CAV9 in A549 human lung carcinoma cells.

What are the applications of Application

Latrunculin A, Latrunculia magnifica is a stabilizer of monomeric G-actin and polymerization inhibitor that disrupts microfilament organization in cultured cells.

Definition

ChEBI: A bicyclic macrolide natural product consisting of a 16-membered bicyclic lactone attached to the rare 2-thiazolidinone moiety. It is obtained from the Red Sea sponge Latrunculia magnifica and from the Fiji Islands sponge Cacospongia myc fijiensis. Latrunculin A inhibits actin polymerisation, microfilament organsation and microfilament-mediated processes.

General Description

Latrunculin A, a toxin extracted from the red sea sponge Latrunculia magnifica. It participates in vitro in the morphological alteration of the polymerization of pure actin. It forms a complex by binding with the nucleotide cleft of actin for actin filaments elongation.

Biochem/physiol Actions

Latrunculin A inhibits actin polymerization by a different mechanism than cytochalasins. Latrunculin A disrupts microfilament-mediated processes.

storage

-20°C

References

1) Coue et al. (1987), Inhibition of actin polymerization by latrunculin; FEBS Lett., 213 316 2) Spector et al. (1989), Latrunculins-novel marine macrolides that disrupt microfilament organization and affect cell growth; Cell Motil. Cytoskeleton, 13 127 3) Wang et al. (2005), Differential effects of latrunculin-A on myofibrils in cultures of skeletal muscle cells: Insights into mechanisms of myofibrillogenesis; Cell Motil. Cytoskeleton, 62 35 4) Reggiori et al. (2005), The actin cytoskeleton is required for selective types of autophagy, but not for non-specific autophagy, in the yeast Saccharomyces cerevisiae; Mol. Biol. Cell, 16 5843 5) Asadi et al. (2016) A Genetic Screen for Fission Yeast Gene Deletion Mutants Exhibiting Hypersensitivity to Latrunculin A; G3 Genes Genomes Genetics, 6 3399 [Focus Citation]

Properties of LATRUNCULIN A

alpha  D24 +152° (c = 1.2 in chloroform)
storage temp.  -20°C
solubility  DMSO: soluble
form  waxy solid
color  yellow
Stability: Stable for 1 year from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20° for up to 3 months.

Safety information for LATRUNCULIN A

Computed Descriptors for LATRUNCULIN A

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