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10 Cards in this Set

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Brush Border Glycosdidase catalytic sites and action:

beta-Glucoamylase
alpha-glucosidase
beta-glucosidase

Split alpha-1,4-glycosidic bonds beginning at nonreducing end.
Brush Border Glycosdidase catalytic sites and action:

Sucrase-maltase
Splits sucrose, maltose, and maltotriose
Brush Border Glycosdidase catalytic sites and action:
Isomaltase-maltase
Splits alpha-1,6-bonds in a number of limit dextrins, as well as the alpha-1,4-bonds in maltose and maltriose
Brush Border Glycosdidase catalytic sites and action:
beta-Glycosidase
Glucosyl-ceramidase (phlorizin hydrolase)=Splits beta-glycosidic bonds between glucose or galactose and hydrophobic residues.

Lactase=Splits beta-1,4-bond between glucose and galactose.
Brush Border Glycosdidase catalytic sites and action:
Trehalase
Splits bond in trehalose, whis is two glycosyl units linked alpha-1,1 through their anomeric carbons
Distribution of Glucose Transport Proteins:

GLUT1
Erythrocyte, blood-brain, blood-retinal, blood-placental, blood-testis
Distribution of Glucose Transport Proteins:

GLUT2
Liver, kidney, pancreatic beta-cells, serosal surface of intestinal mucosa cells
Distribution of Glucose Transport Proteins:

GLUT3
Brain (neurons)
Distribution of Glucose Transport Proteins:

GLUT4
Adipose tissue, skeletal muscle, heart muscle
Distribution of Glucose Transport Proteins:

GLUT5
Intestinal epithelium, spermatozoa

(fructose transporter)