Large-scale purification of presynaptic plasma membranes from Torpedo marmorata electric organ.
J Cell Biol
; 101(5 Pt 1): 1757-62, 1985 Nov.
Article
em En
| MEDLINE
| ID: mdl-2997233
ABSTRACT
The presynaptic plasma membrane (PSPM) of cholinergic nerve terminals was purified from Torpedo electric organ using a large-scale procedure. Up to 500 g of frozen electric organ were fractioned in a single run, leading to the isolation of greater than 100 mg of PSPM proteins. The purity of the fraction is similar to that of the synaptosomal plasma membrane obtained after subfractionation of Torpedo synaptosomes as judged by its membrane-bound acetylcholinesterase activity, the number of Glycera convoluta neurotoxin binding sites, and the binding of two monoclonal antibodies directed against PSPM. The specificity of these antibodies for the PSPM is demonstrated by immunofluorescence microscopy.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Membrana Celular
/
Órgão Elétrico
Limite:
Animals
Idioma:
En
Ano de publicação:
1985
Tipo de documento:
Article