Cytoskeletal studies on Lowicryl K4M embedded and Affi-Gel 731 attached rat peritoneal mast cells

Abstract
The subplasmalemmal network in mast cells consists of irregularly arranged 6–7 nm filaments (actin) connected by thinner filaments. In places oblique filaments with crossbridges or short, perpendicular filaments (11–12 nm) connect cell and granule membrane. Filaments attaching subplasmalemmal network to cell membrane divide like a Y and attach cell membrane end-on with a conical, hook-like bending. Each granule is surrounded by a regular network of filaments.