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GARBERS CF, JOUBERT FJ. Effect of the borate ion in buffers on the electrophoresis of rat serum. Nature 2000; 182:530-1. [PMID: 13577903 DOI: 10.1038/182530a0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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GARBERS CF, GILLMAN J, PEISACH M. The transport of vitamin A in rat serum with special reference to the occurrence of unidentified metabolites of vitamin A in the rat. Biochem J 1998; 75:124-32. [PMID: 13826380 PMCID: PMC1204338 DOI: 10.1042/bj0750124] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Menon KR. A note on a fast moving protein fraction in the serum of frog (Rana hexadactyla). Naturwissenschaften 1963. [DOI: 10.1007/bf00621854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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MCLOUGHLIN JV, MCCARTHY EF, KOZLIK T. An analysis of proteins in the serum of maternal and foetal sheep and the lamb by paper electrophoresis. Ir J Med Sci 1961; 424:174-80. [PMID: 13774123 DOI: 10.1007/bf02953009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Bishop CT, Anet EFLJ, Gorham PR. ISOLATION AND IDENTIFICATION OF THE FAST-DEATH FACTOR IN MICROCYSTIS AERUGINOSA NRC-1. ACTA ACUST UNITED AC 1959. [DOI: 10.1139/o59-047] [Citation(s) in RCA: 91] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The fast-death factor in Microcystis aeruginosa NRC-1 is an acidic, probably cyclic peptide containing the following amino acids in the molar ratios indicated: L-aspartic (1); L-glutamic (2); D-serine (1); L-valine (1); L-ornithine (1); L-alanine (2); L-leucine (2). It is possible, although not likely, that one of the residues of glutamic, alanine, or leucine also is in the D-configuration. The toxin, in the form of its sodium salt, was extracted from lyophilized algal cells by water, separated from pigments by extraction into n-butanol, and freed from high-molecular-weight impurities by dialysis. No separation of a single toxic compound could be obtained by countercurrent distribution, chromatography, or electrophoresis in carbonate, acetate, or phosphate buffers. Electrophoresis of the crude toxin on cellulose in 0.1 M borate yielded five peptides one of which was toxic and accounted for 100% of the toxicity present in the crude preparation. The intraperitoneal LD50of the pure toxin for mice was 0.466 ± 0.013 mg/kg body weight.
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Bishop CT, Anet EFLJ, Gorham PR. ISOLATION AND IDENTIFICATION OF THE FAST-DEATH FACTOR IN MICROCYSTIS AERUGINOSA NRC-1. ACTA ACUST UNITED AC 1959. [DOI: 10.1139/y59-047] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The fast-death factor in Microcystis aeruginosa NRC-1 is an acidic, probably cyclic peptide containing the following amino acids in the molar ratios indicated: L-aspartic (1); L-glutamic (2); D-serine (1); L-valine (1); L-ornithine (1); L-alanine (2); L-leucine (2). It is possible, although not likely, that one of the residues of glutamic, alanine, or leucine also is in the D-configuration. The toxin, in the form of its sodium salt, was extracted from lyophilized algal cells by water, separated from pigments by extraction into n-butanol, and freed from high-molecular-weight impurities by dialysis. No separation of a single toxic compound could be obtained by countercurrent distribution, chromatography, or electrophoresis in carbonate, acetate, or phosphate buffers. Electrophoresis of the crude toxin on cellulose in 0.1 M borate yielded five peptides one of which was toxic and accounted for 100% of the toxicity present in the crude preparation. The intraperitoneal LD50of the pure toxin for mice was 0.466 ± 0.013 mg/kg body weight.
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Affiliation(s)
- C. T. Bishop
- Division of Applied Biology, National Research Council, Ottawa
| | | | - P. R. Gorham
- Division of Applied Biology, National Research Council, Ottawa
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