In vitro translation of type A Clostridium botulinum neurotoxin heavy chain and analysis of its binding to rat synaptosomes.
In vitro translation of type A Clostridium botulinum neurotoxin heavy chain and analysis of its binding to rat synaptosomes.
复制标题
A型肉毒杆菌神经毒素重链的体外翻译及其与大鼠突触体的结合分析。
DOI:
10.1023/a:1020655701852
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
Singh,BR
中科院分区:
文献类型:
--
作者:
Li,L;Singh,BR
Botulinum neurotoxins (BoNTs) are highly potent toxins that inhibit neurotransmitter release from peripheral cholinergic synapses. BoNTs consist of a toxifying light chain (LC; 50 kDa) and a binding/translocating heavy chain (HC; 100 kDa) linked through a disulfide bond. A DNA fragment encoding type AClostridium botulinumheavy chain (BoNT/A HC) was amplified by polymerase chain reaction and cloned into anE. coliPET-15b vector.In vitrotranslated [35S]BoNT/A HC was identified by anti-BoNT/A polyclonal antibodies, and was used to investigate the binding of the toxin to rat synaptosomes. The binding of [35S]BoNT/A HC to synaptosomes was abolished by 500-fold excess of cold BoNT/A, and by incubation with trypsin. Treatment of BoNT/A HC with anti-BoNT/A or GT1bblocked its binding to synaptosomes. The radioactive BoNT/A HC recognized three proteins corresponding to a molecular mass of 150 (P150), 120 (P120), and 75 (P75) kDa in rat and bovine synaptosomal preparations. These results represent the first successful expression of functional full-length BoNT heavy chain.
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影响因子:
4.1
作者:
P. Hall;R. Roberts
通讯作者:
R. Roberts
DOI:
10.1073/pnas.84.10.3224
发表时间:
1987-05-01
影响因子:
11.1
作者:
EATON, DL;FLESS, GM;SCANU, AM
通讯作者:
SCANU, AM
影响因子:
64.8
作者:
Michael S. Brown;J. Goldstein
通讯作者:
J. Goldstein
影响因子:
4.6
作者:
Scanu,AM
通讯作者:
Scanu,AM
影响因子:
9.3
作者:
G F Grinstead;R D Ellefson
通讯作者:
R D Ellefson