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Emily Schmitt Sepiapterin Reductase-Beery Twins Story

  • Page ID
    108138
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    Exercise \(\PageIndex{1}\)

    Which mutation was contributed by the mother that affected the Sepiapterian reductase (SPR) in the Beery Twins situation?STR model with mother mutation.jpg

    Answer

    a) early stop of the protein (Lys to termination) Lys251X

    b) Arg 150 Gly

    c) there was no mutation from the mother that caused the disease

    d) Lys 250 Glu

     

     

    Here is a hint if you need one

    Authored by [YOUR NAME].  Last update:  [FILL IN DATE]

    Date of origin

    Introduction - Meet the Beery Twins

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    Beery twins pathway.png

    Figure 1: The pathway above shows where the drugs given to the twins exist in the pathway that involves Sepiapterin Reductase (SPR).  Note that the twins were prescribed 5-HTP and L-Dopa which are downstream of the "broken" SPR. In this way dopamine and serotonin can still be produced in the twins.

     

     

     

    6I6P_icn3d_loadable27-cropped.png

     

    Figure 2: iCN3D recreation of Alen et al., 2019 Figure 5- Crystal structure of inhibitor 3 bound to SPR (PDB code 6I6P)

     

     

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    3k83 Interactive iCn3D model

    3k83.png

     


    Emily Schmitt Sepiapterin Reductase-Beery Twins Story is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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