کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10770926 1050837 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Membrane topology of the electrogenic aspartate-alanine antiporter AspT of Tetragenococcus halophilus
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Membrane topology of the electrogenic aspartate-alanine antiporter AspT of Tetragenococcus halophilus
چکیده انگلیسی
AspT is an electrogenic aspartate:alanine exchange protein that represents the vectorial component of a proton-motive metabolic cycle found in some strains of Tetragenococcus halophilus. AspT is the sole member of a new family, the Aspartate: Alanine Exchanger (AAE) family, in secondary transporters, according to the computational classification proposed by Saier et al. (http://www.biology.ucsd.edu/~msaier/transport/). We analyzed the topology of AspT biochemically, by using fusion methods in combination with alkaline phosphatase or β-lactamase. These results suggested that AspT has a unique topology; 8 TMS, a large cytoplasmic loop (183 amino acids) between TMS5 and TMS6, and N- and C-termini that both face the periplasm. These results demonstrated a unique 2D-structure of AspT as the novel AAE family.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 328, Issue 1, 4 March 2005, Pages 20-26
نویسندگان
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