[Structural elements of z-disks].

L A Tskhovrebova

PubMed · 2369605

[Structural elements of z-disks].

Abstract

Structural features of the Z-line were examined in negative stained rabbit psoas myofibrils. The data obtained allow to conclude that: 1) the amount of overlap of actin-containing filaments from apposing sarcomeres is about 50 nm; 2) there are five bands of extra density separated by the distances approximately 20 nm across entire Z-line width, and three central of these bands are localized in the actin overlap region; 3) the axial repeating distance between Z-filament attachment sites on thin filament is found to be 17-20 nm. A model for the array of cross-bridges between action-containing filaments in Z-line is presented.

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Actinin Actins Animals Macromolecular Substances Microscopy, Electron Muscles Myofibrils Rabbits English Abstract Journal Article

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L A Tskhovrebova. [Structural elements of z-disks].. https://pubmed.ncbi.nlm.nih.gov/2369605/

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