jeudi 29 mai 2014

Co-transporters:

I) Historical:

   In august 1960 in Prague, the Czech Republic Robert K.Crane discovered the mecanism of the sodium-glucose cotransport for the glucose intestinal absorption. It was the most important concerning later the carbohydrates absorption in the 20th century.

II) What are these proteins?

    Co-transporters, or coupled transporters are a subcategory of transporters that couple the favorable movement of one molecule with its concentration gradient and unfavorable movement of another molecule against its concentration gradient.
    According to the path of these two elements, we'll talk about symporters (ion and molécule travel the membrane in the same direction) or antiporters (these two chemical species travel the membrane in opposite directions).

http://ressources.unisciel.fr/biocell/chap2/co/module_Chap2_2.html


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