A novel peptide toxin from Trimeresurus wagleri acts pre- and post-synaptically to block transmission at the rat neuromuscular junction.
A novel peptide toxin from Trimeresurus wagleri acts pre- and post-synaptically to block transmission at the rat neuromuscular junction.
复制标题
竹叶青中的一种新型肽毒素在突触前和突触后发挥作用,阻断大鼠神经肌肉接头的传递。
DOI:
10.1111/j.1600-0773.1992.tb00508.x
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发表时间:
1992
期刊:
影响因子:
--
通讯作者:
McArdle,JJ
中科院分区:
文献类型:
--
作者:
Aiken,SP;Sellin,LC;Schmidt,JJ;Weinstein,SA;McArdle,JJ
The neuromuscular effects of a peptide toxin (peptide I) from venom ofTrimeresurus wagleriwere investigated using the rat extensor digitorum longus muscle/peroneal nerve preparation. Sub‐micromolar concentrations depressed endplate currents (EPCs) produced in response to nerve stimulation. Since quantal content of EPCs was not altered, it appears that the site of action is post‐synaptic. However, higher concentrations (1.4–2.9 μM) also inhibited spontaneous release of transmitter. Nerve stimulation in the presence of peptide I caused ‘rundown’ of EPC amplitude, evidence that the peptide acts pre‐synaptically to interfere with transmitter release. Recovery from this effect occurred within 3–5 min. of washing, but EPC amplitude took 20–30 min. to recover. The dual action of this peptide makes it unusual amongst naturally‐occurring toxins, and these data suggest that further investigation of the peptide (and its analogues) could yield new information about neurotransmitter release.
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DOI:
--
发表时间:
1983
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Dimitriu-Bona,A;Burmester,GR;Waters,SJ;Winchester,RJ
通讯作者:
Winchester,RJ
影响因子:
11.2
作者:
Berd,D;Mastrangelo,MJ
通讯作者:
Mastrangelo,MJ
影响因子:
6.2
作者:
Hiroshige Nakamura;K. Ishiguro;T. Mori
通讯作者:
T. Mori
影响因子:
5.4
作者:
C. Pitzalis;G. Kingsley;D. Haskard;G. Panayi
通讯作者:
G. Panayi
DOI:
--
发表时间:
1988
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Clement,LT;Yamashita,N;Martin,AM
通讯作者:
Martin,AM