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Latrunculin B

Catalog No. T20636 CAS 76343-94-7

Synonyms: LAT-B, LATB, NSC 339663, NSC339663, NSC-339663, LAT B, INS115644

Latrunculin B, an alkaloid from the Red Sea sponge, is an actin polymerization inhibitor with antifungal and antiprotozoal activity.Latrunculin B modulates the electrophysiological characteristics of the pulmonary veins and attenuates the occurrence of torsade de pointes, and may be used in the study of glaucoma in adolescents.

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Latrunculin B, CAS 76343-94-7

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1 mg	35 days	$ 548.00

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Biological Description

Chemical Properties

Storage & Solubility Information

Description	Latrunculin B, an alkaloid from the Red Sea sponge, is an actin polymerization inhibitor with antifungal and antiprotozoal activity.Latrunculin B modulates the electrophysiological characteristics of the pulmonary veins and attenuates the occurrence of torsade de pointes, and may be used in the study of glaucoma in adolescents.
Targets&IC50	HeLa cells:1.4 μM
In vitro	Displaying growth inhibition of HeLa cells with an IC50 value of 1.4 μM, Latrunculin B also modulates electrophysiological characteristics and arrhythmogenesis in pulmonary vein cardiomyocytes[1]. In pulmonary vein (PV) preparations, Latrunculin B (100 nM) decreases spontaneous electrical activity by 16±4%. Moreover, it reduces the late Na+ current, L-type Ca2+ current, Na+/Ca2+ exchanger current, and stretch-activated BKCa current in PV cardiomyocytes. Latrunculin B alters the transient outward K+ current and ultra-rapid delayed rectifier K+ current, while increasing the delayed rectifier K+ current in isolated PV cardiomyocytes. Additionally, at a concentration of 100 nM, Latrunculin B decreases intracellular Ca2+ transient and sarcoplasmic reticulum Ca2+ content in PV cardiomyocytes, attenuating stretch-induced increased spontaneous electrical activity and trigger activity[2].

Synonyms	LAT-B, LATB, NSC 339663, NSC339663, NSC-339663, LAT B, INS115644
Molecular Weight	395.51
Formula	C20H29NO5S
CAS No.	76343-94-7

Storage

store at low temperature

Powder: -20°C for 3 years | In solvent: -80°C for 1 year

Solubility Information

DMSO: Soluble

References and Literature

1. Diaa T A Youssef, et al. Magnificines A and B, Antimicrobial Marine Alkaloids Featuring a Tetrahydrooxazolo[3,2-a]azepine-2,5( 3H,6H)-dione Backbone from the Red Sea Sponge Negombata magnifica. Mar Drugs. 2021 Apr 12;19(4):214. 2. Yen-Yu Lu, et al. Latrunculin B modulates electrophysiological characteristics and arrhythmogenesis in pulmonary vein cardiomyocytes. Clin Sci (Lond). 2016 May;130(9):721-32. 3. Wakatsuki T, Schwab B, Thompson NC, Elson EL. Effects of cytochalasin D and latrunculin B on mechanical properties of cells. J Cell Sci. 2001 Mar;114(Pt 5):1025-36. PubMed PMID: 11181185. 4. Thomasy SM, Wood JA, Kass PH, Murphy CJ, Russell P. Substratum stiffness and latrunculin B regulate matrix gene and protein expression in human trabecular meshwork cells. Invest Ophthalmol Vis Sci. 2012 Feb 23;53(2):952-8. doi: 10.1167/iovs.11-8526. Print 2012 Feb. PubMed PMID: 22247475; PubMed Central PMCID: PMC3317432.

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Keywords

Latrunculin B 76343-94-7 Microbiology/Virology Antifungal LAT-B LATB NSC 339663 NSC339663 NSC-339663 INS-115644 LAT B INS 115644 INS115644 inhibitor inhibit

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