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Literature DB >> 5272314

Biological membrane structure. II. A detailed model for the retinal rod outer segment membrane.

Abstract

A model, based on the available chemical, electron microscopic, and x-ray diffraction data, has been developed for the structure of the retinal rod outer segment membranes. The model consists of a double layer of globular protein molecules, with lipid bilayer filling the spaces between the proteins. The electron density across the membrane has been calculated and shown to be in agreement with that found by x-ray diffraction. The protein molecules "float" half submerged in a lipid field; this serves to orient them in the same way at all times relative to incident radiation in the intact retina.

Entities: Chemical

Mesh：

Substances：
Lipids
Proteins

Year: 1970 PMID： 5272314 PMCID： PMC283193 DOI： 10.1073/pnas.67.1.233

Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205

13 in total

Biological membrane structure. II. A detailed model for the retinal rod outer segment membrane.

1. Planar liquid-like arrangement of photopigment molecules in frog retinal receptor disk membranes.

2. Molecular localization of frog retinal receptor photopigment by electron microscopy and low-angle X-ray diffraction.

3. X-ray diffraction studies of phase transitions in the membrane of Mycoplasma laidlawii.

4. Biochemistry of visual pigments. I. Purification and properties of bovine rhodopsin.

5. Structure of frog photoreceptor membranes.

6. Comparative study of a membrane protein. Characterization of bovine, rat, and frog visual pigments500.

7. X-ray analysis of retinal photoreceptors.

8. Electron microscope and low-angle x-ray diffraction studies on outer segment membranes from the retina of the frog.

9. The purification and amino acid composition of bovine rhodopsin.

10. Calorimetric evidence for the liquid-crystalline state of lipids in a biomembrane.

1. What history tells us XXX. The emergence of the fluid mosaic model of membranes.

2. The structural organization of calf retinal photoreceptors derived from freeze-fracture study.

3. Structure-function unitization model of biological membranes.

4. The electromechanochemical model of mitochondrial structure and function.

5. Structures of the visual chromophores and related pigments: a conformational basis of visual excitation.

6. The low polarity of many membrane proteins.

7. X-ray diffraction pattern from a bilayer with protein outside.

8. On the structure of biological membranes: the double-tiered pattern.

9. On the birefringence of rods and cones.

10. Insect UV-, and green-photoreceptor membranes studied by the freeze-fracture technique.