منابع مشابه
Characterisation of two articulins, the major epiplasmic proteins comprising the membrane skeleton of the ciliate Pseudomicrothorax.
Most protists possess a unique membrane skeleton, the epiplasm, which is involved in pattern forming processes of the cell cortex and functions in maintaining cell shape. Articulins, a novel class of cytoskeletal proteins, are major constituents of the epiplasm. We have isolated cDNAs encoding the two major articulins of the ciliate Pseudomicrothorax dubius. Peptide sequence data confirm the id...
متن کاملDrosophila spectrin: the membrane skeleton during embryogenesis
The distribution of alpha-spectrin in Drosophila embryos was determined by immunofluorescence using affinity-purified polyclonal or monoclonal antibodies. During early development, spectrin is concentrated near the inner surface of the plasma membrane, in cytoplasmic islands around the syncytial nuclei, and, at lower concentrations, throughout the remainder of the cytoplasm of preblastoderm emb...
متن کاملThe red cell membrane skeleton: recent progress.
I T IS WIDELY believed that the lipid bilayer of the erythrocyte membrane is supported by an elaborate infrastructure of protein molecules that give it viscoelastic properties. The proteins that provide this function are popularly referred to as the “membrane skeleton.” This membrane skeleton is considered to be distinct from the so-called “cytoskeleton,” a term used by cell biologists to descr...
متن کاملIdentification of a membrane skeleton in platelets
Platelets have previously been shown to contain actin filaments that are linked, through actin-binding protein, to the glycoprotein (GP) Ib-IX complex, GP Ia, GP IIa, and an unidentified GP of Mr 250,000 on the plasma membrane. The objective of the present study was to use a morphological approach to examine the distribution of these membrane-bound filaments within platelets. Preliminary experi...
متن کاملUltrastructure of the intact skeleton of the human erythrocyte membrane
Filamentous skeletons were liberated from isolated human erythrocyte membranes in Triton X-100, spread on fenestrated carbon films, negatively stained, and viewed intact and unfixed in the transmission electron microscope. Two forms of the skeleton were examined: (a) basic skeletons, stripped of accessory proteins with 1.5 M NaCl so that they contain predominantly polypeptide bands 1, 2, 4.1, a...
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ژورنال
عنوان ژورنال: Journal of Cell Science
سال: 1991
ISSN: 1477-9137,0021-9533
DOI: 10.1242/jcs.100.4.693