3D model (Jmol)
|Molar mass||1060.24 g/mol|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Echinocandin B, a lipopeptide, is a naturally occurring cyclic hexapeptide with a linoleoyl side chain. It belongs to a class of antifungal agents called echinocandins, which inhibits the synthesis of glucan, a major component of the fungal cell wall, via noncompetitive inhibition of a crucial enzyme, β-(1→3)-D-glucan synthase. Echinocandin B is a fermentation product of Aspergillus nidulans and the closely related species, A. rugulosus; discovered in 1974 in A. nidulans var. echinulatus strain A 32204 in Germany, it was the first of the echinocandin class of antifungals.
Echinocandin B can undergo deacylation (removal of the lipid side chain) by the action of a deacylase enzyme from the filamentous bacterium Actinoplanes utahensis, which catalyzes the cleavage of the linoleoyl side chain; in three subsequent synthetic steps, including a chemical reacylation, the antifungal drug anidulafungin is synthesized.
- Denning DW (1997). "Echinocandins and pneumocandins - a new antifungal class with a novel mode of action". J Antimicrob Chemother. 40 (5): 611–614. doi:10.1093/jac/dkf045. PMID 9421307.
- Nyfeler R, Keller-Schierlein W (1974). "Metabolites of microorganisms. 143. Echinocandin B, a novel polypeptide-antibiotic from Aspergillus nidulans var. echinulatus: isolation and structural components". Helv Chim Acta. 57 (8): 2459–2477. doi:10.1002/hlca.19740570818. PMID 4613708.
- Lei Shao; Jian Li; Aijuan Liu; Qing Chang; Huimin Lin; Daijie Chen (2013). "Efficient Bioconversion of Echinocandin B to Its Nucleus by Overexpression of Deacylase Genes in Different Host Strains". Applied and Environmental Microbiology. 79 (4): 1126–1133. doi:10.1128/AEM.02792-12. PMC . PMID 23220968.
- "Anidulafungin EMA Europa" (PDF).
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