Membranes and Transporters Flashcards

1
Q

Outer membrane

A

Phosphatidylcholine
Sphingomyelin
Glycolipids

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2
Q

Inner membrane

A

Phosphatidylserine
Phosphatidylinositol
Phosphatidylethanolamine

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3
Q

GLUT 1

A

Present in brain, RBC, and ubiquitous

Km low, high affinity

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4
Q

GLUT 2

A

Liver and pancreas
Km is high; low affinity
Not as specific

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5
Q

GLUT 3

A

Neurons

Km is low; high affinity

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6
Q

GLUT 4

A

Insulin Dependent
Skeletal muscle, adipose tissue, heart
Sequestered in vesicles until needed

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