Plasma Membrane Redox Systems and Their Role in Biological Stress and Disease 1998
DOI: 10.1007/978-94-017-2695-5_1
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Plasma Membrane b-Type Cytochromes

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Cited by 11 publications
(9 citation statements)
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“…In vitro studies on bean hypocotyl plasma membrane vesicles have shown that the plant cyt b 561 is also capable of transmembrane electron transport from Asc to MDHA and ferricyanide (Asard et al 1992, Horemans et al 1994). These experiments indicate that plant plasma membrane cyt b 561 could shuttle electrons between intracellular Asc and an extracellular acceptor, similar to the mode of action of the chromaffin cyt b 561 (Asard et al 1998). Therefore, the plasma membrane cyt b 561 in plants may be capable of regenerating Asc in the apoplast using electrons from cytosolic Asc.…”
Section: Introductionmentioning
confidence: 61%
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“…In vitro studies on bean hypocotyl plasma membrane vesicles have shown that the plant cyt b 561 is also capable of transmembrane electron transport from Asc to MDHA and ferricyanide (Asard et al 1992, Horemans et al 1994). These experiments indicate that plant plasma membrane cyt b 561 could shuttle electrons between intracellular Asc and an extracellular acceptor, similar to the mode of action of the chromaffin cyt b 561 (Asard et al 1998). Therefore, the plasma membrane cyt b 561 in plants may be capable of regenerating Asc in the apoplast using electrons from cytosolic Asc.…”
Section: Introductionmentioning
confidence: 61%
“…A putative binding site for Asc (Okuyama et al 1998) is not as well conserved among plant cyts b 561 (Verelst and Asard 2003). At least one member of this family of plant proteins is plasma membrane localized and has been extensively characterized at the biochemical level (Asard et al 1998, 2000, 2001).…”
Section: Introductionmentioning
confidence: 99%
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“…Catecholamines are proposed to exert their activities through DoH-CB proteins, which retain the cytochrome b561 domain (CB) and the catecholamine-binding regulatory domain of dopamine-b-hydroxylase (DoH) (Verelst and Asard 2004). Cytochrome b561 catalyses ascorbate-mediated trans-membrane electron transport, and hence may be involved in ascorbate regeneration (Wakefield et al 1986;Asard et al 1998). These facts imply that catecholamines may be involved in ascorbate regeneration.…”
Section: Discussionmentioning
confidence: 99%
“…Cytochromes b 561 are intrinsic membrane proteins containing two heme molecules, and reducible by ascorbate [8,9]. They have been suggested to function as electron transporters, shuttling electrons across membranes from ascorbate to an acceptor molecule.…”
Section: Introductionmentioning
confidence: 99%