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. 1976 Dec 1;159(3):797-8.
doi: 10.1042/bj1590797.

Aldolase binding to actin-containing filaments. Formation of paracrystals

F M Clarke, D J Morton

Aldolase binding to actin-containing filaments. Formation of paracrystals

F M Clarke et al. Biochem J. .

Abstract

Electron-microscopy observation show that when aldolase binds to F-actin or F-actin-tropomyosin, highly ordered paracrystalline structures are formed consisting of tightly packed filament bundles cross-banded at 36 nm intervals. Morphologically different paracrystalline arrays are formed between aldolase and F-actin-tropomyosin-troponin. The filament bundles are far more extensive and are characterized by a prominent cross-striation at 38nm intervals. It is suggested that this reflects an interaction between troponin and aldolase.

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