Evidence for a membrane skeleton in higher plants A spectrin-like polypeptide co-isolates with rice root plasma membranes

Autor: Roger M. Spanswick, Christopher D. Faraday
Jazyk: angličtina
Předmět:
Zdroj: FEBS Letters. (3):313-316
ISSN: 0014-5793
DOI: 10.1016/0014-5793(93)80536-4
Popis: A fraction enriched in plasma membranes was isolated from rice roots by differential centrifugation and aqueous polymer two-phase partitioning. Analysis of the fraction by SDS-PAGE showed the presence of several low mobility polypeptides (M(r)100 kDa). One of these polypeptides (M(r) approximately 230 kDa) was specifically recognized by polyclonal antibodies to human erythrocyte spectrin. This finding suggests that a higher plant spectrin-based membrane skeleton may be preserved and studied using high-purity plasma membrane fractions obtained by aqueous polymer two-phase partitioning.
Databáze: OpenAIRE