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D3168

Sigma-Aldrich

Duramycin from Streptoverticillium cinnamoneus

≥90.0%

Synonym(s):

Duramycin, Lancovutide

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About This Item

Empirical Formula (Hill Notation):
C89H125N23O25S3
CAS Number:
Molecular Weight:
2013.28
MDL number:
UNSPSC Code:
51102829
NACRES:
NA.85

Quality Level

assay

≥90.0%

form

powder

solubility

0.1 M HCl: 10 mg/mL

antibiotic activity spectrum

Gram-negative bacteria
Gram-positive bacteria

mode of action

protein synthesis | interferes

storage temp.

2-8°C

General description

Chemical structure: tetracycline

Application

Duramycin is used to study chloride secretion by cardial, pancreatic and airway epithelial voltage-gated ion channels. It is used to study cystic fibrosis and as a novel phosphatidylethanolamine-binding molecular probe. It is used to stimulate sodium transport in cultured human colonic epithelia.

Biochem/physiol Actions

Duramycin is the smallest known polypeptide since it has only 19 amino acids. It has a defined 3-dimensional binding structure. Duramycin binds phosphatidylethanolamine (PtdE) at a 1:1 ratio with high affinity and exclusive specificity. It enhances chloride secretion in airway epithelium.

Other Notes

Keep container tightly closed in a dry and well-ventilated place.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Andrei Marconescu et al.
Biochimica et biophysica acta, 1778(10), 2217-2224 (2008-06-24)
The major anionic phospholipid, phosphatidylserine (PS), and the neutral phospholipid, phosphatidylethanolamine (PE), are largely confined to the inner leaflet of the plasma membrane bilayer in mammalian cells under normal conditions. This asymmetry is lost when cells undergo apoptosis, become activated
Igor Oliynyk et al.
APMIS : acta pathologica, microbiologica, et immunologica Scandinavica, 118(12), 982-990 (2010-11-26)
The lantibiotic duramycin (Moli1901, Lancovutide) has been suggested as a drug of choice in the treatment for cystic fibrosis (CF). It has been proposed that duramycin may stimulate chloride secretion through Ca²(+) -activated Cl⁻ channels (CaCC). We investigated whether duramycin
M M Cloutier et al.
The American journal of physiology, 259(3 Pt 1), C450-C454 (1990-09-01)
The effect of duramycin, a polypeptide antibiotic, on Cl- transport in canine tracheal epithelium mounted in Ussing chambers was studied. Over a narrow concentration range, duramycin increased short-circuit current (Isc) and net Cl- secretion and had no effect on mannitol
K Sundquist
Bone and mineral, 20(1), 17-29 (1993-01-01)
Proton transport in microsomal vesicles derived from medullary bone of laying hens was observed to be inhibited in a dose-dependent manner with fusidic acid, 7-chloro-4-nitrobenz-2-oxa-1,3-diatzole (NBD-Cl), duramycin and dicyclohexylcarbodiimide (DCCD). The IC50 values were 570 microM, 4.5 microM, 10 micrograms/ml
Ming Zhao et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 49(8), 1345-1352 (2008-07-18)
With only 19 amino acids, duramycin is the smallest known polypeptide that has a defined 3-dimensional binding structure. Duramycin binds phosphatidylethanolamine (PtdE) at a 1:1 ratio with high affinity and exclusive specificity. As an abundant binding target, PtdE is a

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