Monosaccharide Transporters

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6 Terms

1
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GLUT-5

actually for FRUCTOSE
both on BASOlateral side and APICAL side

  • fructose into cell and out of cell

2
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SGLT-1

Symporter of sodium and glucose (or galactose) on APICAL microvilli (near lumen)

  • sodium and glucose INTO cell

  • REMEMBER: Na already low due to NKA and SYMporter capitalizes off of the diffusion of Na

3
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GLUT-2

BASOlateral to complete the glucose transcellular passage

  • can potentially be recruited to apical side

  • insulin INdependent

4
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GLUT-1

  • present on RBCs

  • insulin-INdependent

5
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GLUT-4

  • found on tissues like fat, heart and skeletal muscle

  • insulin-DEpendent

    • insulin binds and initiates signal cascade to upregulate GLUT-4 to remove glucose from bloodstream

6
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GLUT-3

  • present on brain and liver