Literature DB >> 519706

Cytochemistry and freeze-fracture of membranes isolated from the electrocyte of Electrophorus electricus (L.).

W de Souza, M Benchimol, C Somlo, R D Machado, A Hasson-Voloch.   

Abstract

Membranes were isolated from the main electric organ of Electrophorus electricus and studied by means of cytochemistry and freeze-fracture. The membrane fractions consisted of vesicles inside-in as determined by localization of anionic sites using colloidal iron and cationized ferritin particles. The anionic sites were not homogeneously distributed on the surface of the vesicle. Freeze-fracture showed the presence of intramembranous particles associated with either protoplasmic (P) or extracellular (E) faces of the membrane. Regions of the membrane without particles were observed. The results are discussed in relation to the existence of association between intramembranous particles and membrane receptors.

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Year:  1979        PMID： 519706     DOI： 10.1007/BF00232241

Source DB:  PubMed          Journal:  Cell Tissue Res        ISSN： 0302-766X            Impact factor:   5.249


  18 in total

1.  Reaction of lectins with human erythrocytes. II. Mapping of conA receptors by freeze-etching electron microscopy.

Authors:  T Bachi; H P Schnebli
Journal:  Exp Cell Res       Date:  1975-03-15       Impact factor: 3.905

2.  Induced redistribution of membrane particles, anionic sites and con A receptors in Entamoeba histolytica.

Authors:  P P Da Silva; A Martinez-Palomo
Journal:  Nature       Date:  1974-05-10       Impact factor: 49.962

3.  Freeze-etch localization of concanavalin A receptors to the membrane intercalated particles of human erythrocyte ghost membranes.

Authors:  P P Silva; G L Nicolson
Journal:  Biochim Biophys Acta       Date:  1974-09-23

4.  Chemical characterization and surface orientation of the major glycoprotein of the human erythrocyte membrane.

Authors:  V T Marchesi; T W Tillack; R L Jackson; J P Segrest; R E Scott
Journal:  Proc Natl Acad Sci U S A       Date:  1972-06       Impact factor: 11.205

5.  Anionic sites on the membrane intercalated particles of human erythrocyte ghost membranes. Freeze-etch localization.

Authors:  P Pinto da Silva; H H Fudenberg
Journal:  Exp Cell Res       Date:  1973-09       Impact factor: 3.905

6.  Glutaraldehyde induced alterations of membrane anionic sites.

Authors:  F Grinnell; R G Anderson; C R Hackenbrock
Journal:  Biochim Biophys Acta       Date:  1976-04-05

7.  An electron microscopic investigation of the surface coat of the electrocyte of electrophorus electricus.

Authors:  M Benchimol; W de Souza; R D Machado
Journal:  Cell Tissue Res       Date:  1977-09-26       Impact factor: 5.249

8.  The structure of erythrocyte membranes studied by freeze-etching. II. Localization of receptors for phytohemagglutinin and influenza virus to the intramembranous particles.

Authors:  T W Tillack; R E Scott; V T Marchesi
Journal:  J Exp Med       Date:  1972-06-01       Impact factor: 14.307

9.  Topographical differences in the distribution of surface coat components and intramembrane particles. A cytochemical and freeze-fracture study in culture forms of Trypanosoma cruzi.

Authors:  A Martínez-Palomo; W DeSouza; A Gonzalez-Robles
Journal:  J Cell Biol       Date:  1976-05       Impact factor: 10.539

10.  The effects of thrombin on phytohemagglutinin receptor sites in human platelets.

Authors:  J R Feagler; T W Tillack; D D Chaplin; P W Majerus
Journal:  J Cell Biol       Date:  1974-03       Impact factor: 10.539
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  1 in total

1.  Scanning electron microscopy of the electric organs of Electrophorus electricus L. I. Main organ.

Authors:  R D Machado; F C Miguens; M A Esquibel
Journal:  Cell Tissue Res       Date:  1983       Impact factor: 5.249
  1 in total

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