An Antimicrobial Guanidine-Bearing Sesterterpene from the Cultured Cyanobacterium Scytonema sp.
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چکیده
منابع مشابه
New pigments from the terrestrial cyanobacterium Scytonema sp. collected on the Mitaraka inselberg, French Guyana.
Inselbergs are hills rising abruptly from the surrounding plains where cyanobacteria are the only living organisms under conditions of intense solar radiation. A survival mechanism to prevent UV-damage has been associated with synthesis of the ultraviolet-screening, photostable sheath pigment scytonemin. The organic extract of Scytonema sp., collected on the Mitaraka inselberg, French Guyana, y...
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Scytovirin (SVN) is a novel anti-human immunodeficiency virus (HIV) protein isolated from aqueous extracts of the cultured cyanobacterium Scytonema varium. The protein consists of a single 95-amino acid chain with significant internal sequence duplication and 10 cysteines forming five intrachain disulfide bonds. A synthetic gene that encodes scytovirin was constructed, and expressed in Escheric...
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Scytovirin (SVN) is a novel anti-human immunodeWciency virus (HIV) protein isolated from aqueous extracts of the cultured cyanobacterium Scytonema varium. The protein consists of a single 95-amino acid chain with signiWcant internal sequence duplication and 10 cysteines forming Wve intrachain disulWde bonds. A synthetic gene that encodes scytovirin was constructed, and expressed in Escherichia ...
متن کاملThe high-energy radiation protectant extracellular sheath pigment scytonemin and its reduced counterpart in the cyanobacterium Scytonema sp. R77DM.
A cyanobacterial extracellular sheath pigment from Scytonema sp. R77DM was partially characterized and investigated for its increased production under abiotic factors, and UV-screening function. HPLC with PDA detection, and ion trap liquid chromatography/mass spectrometry analysis revealed the presence of a pigment scytonemin and its reduced counterpart. Ultraviolet radiation showed more stimul...
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Lyngbya spp. is one of the most efficient groups of secondary metabolite producers and is very important from pharmaceutical point of view. Among its various species, majuscula is the major producers of commercially important biomolecules. Several species have been isolated and screened from the marine in the past decades. Although the chance of isolating a novel Lyngbya strain from a marine ha...
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ژورنال
عنوان ژورنال: Journal of Natural Products
سال: 2009
ISSN: 0163-3864,1520-6025
DOI: 10.1021/np900288x