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Channel-like NH3 flux by ammonium transporter AtAMT2.

Neuhäuser, Benjamin ; Dynowski, Marek ; Ludewig, Uwe (2009)
Channel-like NH3 flux by ammonium transporter AtAMT2.
In: FEBS letters, 583 (17)
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

Prokaryotes, plants and animals control ammonium fluxes by the regulated expression of ammonium transporters (AMTs) and/or the related Rhesus (Rh) proteins. Plant AMTs were previously reported to mediate electrogenic transport. Functional analysis of AtAMT2 from Arabidopsis in yeast and oocytes suggests that NH(4)(+) is the recruited substrate, but the uncharged form NH(3) is conducted. AtAMT2 partially co-localized with electrogenic AMTs and conducted methylamine with low affinity. This transport mechanism may apply to other plant ammonium transporters and explains the different capacities of AMTs to accumulate ammonium in the plant cell.

Typ des Eintrags: Artikel
Erschienen: 2009
Autor(en): Neuhäuser, Benjamin ; Dynowski, Marek ; Ludewig, Uwe
Art des Eintrags: Bibliographie
Titel: Channel-like NH3 flux by ammonium transporter AtAMT2.
Sprache: Englisch
Publikationsjahr: 2009
Titel der Zeitschrift, Zeitung oder Schriftenreihe: FEBS letters
Jahrgang/Volume einer Zeitschrift: 583
(Heft-)Nummer: 17
Kurzbeschreibung (Abstract):

Prokaryotes, plants and animals control ammonium fluxes by the regulated expression of ammonium transporters (AMTs) and/or the related Rhesus (Rh) proteins. Plant AMTs were previously reported to mediate electrogenic transport. Functional analysis of AtAMT2 from Arabidopsis in yeast and oocytes suggests that NH(4)(+) is the recruited substrate, but the uncharged form NH(3) is conducted. AtAMT2 partially co-localized with electrogenic AMTs and conducted methylamine with low affinity. This transport mechanism may apply to other plant ammonium transporters and explains the different capacities of AMTs to accumulate ammonium in the plant cell.

Fachbereich(e)/-gebiet(e): 10 Fachbereich Biologie > Pflanzenernährung und Biomasse
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10 Fachbereich Biologie
Hinterlegungsdatum: 16 Mär 2010 13:06
Letzte Änderung: 05 Mär 2013 09:32
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