meister döngüsü

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  1. aminoasitlerin barsakta emilim döngüsüdür.

    1)gama glutamilsisteinilglisin + aminoasit(aa)-------- gama glutamil-aminoasit+ sisteinil glisin enzim: gama glutamil transferaz
    2)gama glutamil amino asit------- aminoasit+ 5-oksoprolin enzim:gama glutamil siklotransferaz
    3)sisteinilglisin----- sistein+glisin

    glutatyon un tekrar sentezi

    1)-oksoprolin+ATP+H2O----L glutamat+ ADP+Pi enzim: 5 oksoprolinaz
    2)L glutamat+ L sistein+ATP----L glutamil sistein+ADP +Pi enzim: gama glutamil sistein sentetaz
    3) L glutamilsistein +glisin +ATP-----glutatyon( gama glutamilsisteinilglisin)+ADP+Pi
    enzim:gama glutamil sentetaz
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