Chapters 8 & 18: Metabolism and Movement of Lipids

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Chapters 8 & 18: Metabolism and Movement of Lipids What types of fats are needed for cell function? Where are each of these types of fats manufactured? How do phospholipids in the outer leaflet of the plasma membrane get there? How do lipids move from place to place in the cell? Where is cholesterol made? What are lipoproteins? How is lipid metabolism regulated? How does imbalance in lipid metabolism

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Chapters 8 & 18: Metabolism and Movement of Lipids. What types of fats are needed for cell function? Where are each of these types of fats manufactured? How do phospholipids in the outer leaflet of the plasma membrane get there? How do lipids move from place to place in the cell? - PowerPoint PPT Presentation

Transcript of Chapters 8 & 18: Metabolism and Movement of Lipids

Page 1: Chapters 8 & 18: Metabolism and Movement of Lipids

Chapters 8 & 18:Metabolism and Movement of Lipids

What types of fats are needed for cell function?

Where are each of these types of fats manufactured?

How do phospholipids in the outer leaflet of the plasma membrane get there?

How do lipids move from place to place in the cell?

Where is cholesterol made?

What are lipoproteins?

How is lipid metabolism regulated?

How does imbalance in lipid metabolism contribute to atherosclerosis, heart attacks, and strokes?

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What types of fats are needed for cell function?

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Fatty Acid Synthesis and Transport

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Acetyl coA carboxylase

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Acetyl CoA carboxylase catalyzes the reaction:

acetyl CoA + HCO3- + ATP -> malonyl CoA + ADP + Pi

Six molecules of malonyl CoA and one molecule of acetyl CoA then interact sequentially with fatty acid synthase to yield the final product, palmitate.

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Gene Name Common Name Other Names(species)

Expression

FABP1 Liver L-FABPh-FABPZ protein

liver, intestine, kidney, lung(est)

FABP2 Intestinal I-FABP gFABP

intestine

FABP3 Heart/Muscle H-FABPM-FABPMDGIc-FABP

heart, mammary, skeletal muscle

FABP4 Adipocyte ALBPaP2A-FABPp422p15

adipose, macrophage

FABP5 Epidermal KLBP (murine)mal-1 (murine)E-FABP (human)PA-FABP (human)C-FABP (rat)S-FABP (rat)LE-LBP (rat)DA11 (rat)LP2 (bovine)Melanogenic Inhibitor

abnormal skin, lens, adipose, endothelial cells, lung, mammary,brain, stomach, tongue, stomach,placenta, heart, skeletal muscle, intestine, testis, retina

FABP6 Ileal IlLBPILBPBABPIL-FABPI15PGastrotropin

ileum

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Gene Name Common Name Other Names(species)

Expression

FABP7 Brain B-FABPBLBPMRGR-FABP (chicken)

brain, olfactory bulb

FABP(9) Testis T-FABPTLBPPERF15

testis

MP2 Myelin P2 Myelin P2PMP2MLBPMy-FABP

Schwann cells

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cytosol

ER

ER

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