Literature DB >> 856315

Decrease in magnetic anisotropy of external segments of the retinal rods after a total photolysis.

R Chagneux, H Chagneux, N Chalazonitis.   

Abstract

The magnetic anisotropy of a polymembrane cell, such as the external segment of the frog retinal rod, is defined as the difference between the axial magnetic susceptibility (chiar), chia - chir = deltachi of the segment. After the total photolysis of the rhodopsin in situ, deltachi decreases a significantly by 20%. This decrease in magnetic anisotrophy should involve a subtle molecular disorder, mostly due to an alteration of the rhodopsin molecule.

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Year:  1977        PMID： 856315      PMCID： PMC1473267          DOI： 10.1016/S0006-3495(77)85600-2

Source DB:  PubMed          Journal:  Biophys J        ISSN： 0006-3495            Impact factor:   4.033


  6 in total

1.  Magnetic anisotropy and the orientation of retinal rods in a homogeneous magnetic field.

Authors:  F T Hong; D Mauzerall; A Mauro
Journal:  Proc Natl Acad Sci U S A       Date:  1971-06       Impact factor: 11.205

2.  [Changes in the magnetic anisotropism of the external segments of rods during photolysis of rhodopsin].

Authors:  R Chagneux; N Chalazonitis
Journal:  C R Acad Hebd Seances Acad Sci D       Date:  1976-03-08

3.  [Annulation of the magnetic rotation of external segments of photoreceptors by carbon dioxide].

Authors:  N Chalazonitis; R Chagneux
Journal:  C R Acad Hebd Seances Acad Sci D       Date:  1972-07-17

4.  [Evaluation of magnetic anisotropy of multimembrane cells in a constant magnetic field (external segments of frog retina rods)].

Authors:  R Chagneux; N Chalazonitis
Journal:  C R Acad Hebd Seances Acad Sci D       Date:  1972-01-10

5.  [Rotation of external segments of photoreceptors in constant magnetic field].

Authors:  N Chalazonitis; R Chagneux; A Arvanitaki
Journal:  C R Acad Hebd Seances Acad Sci D       Date:  1970-07-06

6.  X-ray diffraction studies of retinal rods. II. Light effect on the osmotic properties.

Authors:  M Chabre; A Cavaggioni
Journal:  Biochim Biophys Acta       Date:  1975-03-25
  6 in total
  2 in total

1.  Magnetic anisotropy of egg lecithin membranes.

Authors:  E Boroske; W Helfrich
Journal:  Biophys J       Date:  1978-12       Impact factor: 4.033

2.  Magnetic anisotropy of lecithin membranes. A new anisotropy susceptometer.

Authors:  F Scholz; E Boroske; W Helfrich
Journal:  Biophys J       Date:  1984-03       Impact factor: 4.033
  2 in total

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