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Nucleobase cation symporter-2 protein family represents a susbset of the wider Amino acid-Polyamine-organoCation superfamily of transporters. Characterised proteins from this family include: *Xanthine permease PbuX, involved in cellualar xanthine transport *Uric acid permeases which promotes uptake of uric acid into the cell in limiting-nitrogen conditions *Uracil permease * Sodium-dependent vitamin C transporter, a sodium/ascorbate cotransporter mediating electrogenic uptake of Vitamin C These proteins generally contain 12 transmembrane regions. Many members of this family are uncharacterised and may transport other substrates e.g. RutG is likely to transport pyrimidines into the cell. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Nucleobase cation symporter-2」の詳細全文を読む スポンサード リンク
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