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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
1993-11-15
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pubmed:abstractText |
By means of reverse phase and ion-exchange high performance liquid chromatography, a neurotoxic peptide named huwentoxin-I was purified from the venom of the Chinese bird spider Selenocosmia huwena. The intraperitoneal and intracisternal LD50 in mice of the toxin were 0.70 mg/kg and 9.40 micrograms/kg, respectively. This toxin at the concentration of 1 x 10(-5) g/ml can irreversibly block the neuromuscular transmission of the isolated mouse phrenic nerve-diaphragm preparation in 13.4 +/- 1.3 min (mean +/- S.D., n = 5). The isoelectric point is 8.95 determined by isoelectric focusing electrophoresis. It consists of 33 amino acids including 6 Cys and 6 Lys determined by amino acid analysis. The complete amino sequence of huwentoxin-I was determined. The N-terminal and C-terminal residues were Ala and Leu, respectively. The primary structure showed partial homology with that of mu-agatoxins from the funnel-web spider Agelenopsis aperta.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0041-0101
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
31
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
969-78
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8212049-Amino Acid Sequence,
pubmed-meshheading:8212049-Animals,
pubmed-meshheading:8212049-Female,
pubmed-meshheading:8212049-Lethal Dose 50,
pubmed-meshheading:8212049-Mice,
pubmed-meshheading:8212049-Molecular Sequence Data,
pubmed-meshheading:8212049-Neuromuscular Diseases,
pubmed-meshheading:8212049-Neurotoxins,
pubmed-meshheading:8212049-Reptilian Proteins,
pubmed-meshheading:8212049-Spider Venoms,
pubmed-meshheading:8212049-Spiders
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pubmed:year |
1993
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pubmed:articleTitle |
Properties and amino acid sequence of huwentoxin-I, a neurotoxin purified from the venom of the Chinese bird spider Selenocosmia huwena.
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pubmed:affiliation |
Department of Biology, Hunan Normal University, Changsha, P.R. China.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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