Glycolysis Fate of Pyruvate...

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Glycolysis Fate of Pyruvate Gluconeogenesis

Transcript of Glycolysis Fate of Pyruvate...

Page 1: Glycolysis Fate of Pyruvate Gluconeogenesisfaculty.uca.edu/lorii/4320_pdf/transparencies/figs/... · 2003. 10. 20. · Gluconeogenesis (GNG) Fig 21.7 Biochemistry 2nd ed, Voet/Voet.

GlycolysisFate of PyruvateGluconeogenesis

Page 2: Glycolysis Fate of Pyruvate Gluconeogenesisfaculty.uca.edu/lorii/4320_pdf/transparencies/figs/... · 2003. 10. 20. · Gluconeogenesis (GNG) Fig 21.7 Biochemistry 2nd ed, Voet/Voet.
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Types of Bond Cleavage

Biochemistry 2nd ed, Voet/VoetFig. 15.4

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Biochemistry 2nd ed, Voet/Voet

Fig. 16.1

Overview of CarbohydrateMetabolism

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Biochemistry 2nd ed, Voet/Voet

Fig16.3

Glycolysis

Page 6: Glycolysis Fate of Pyruvate Gluconeogenesisfaculty.uca.edu/lorii/4320_pdf/transparencies/figs/... · 2003. 10. 20. · Gluconeogenesis (GNG) Fig 21.7 Biochemistry 2nd ed, Voet/Voet.

Mechanism of Phosphoglucose Isomerase

G6P F6P

Fig 16.6Biochemistry 2nd ed, Voet/Voet

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Aldolase Mechanism

F1,6BP

DHAP+

GAP

Fig 16.9Biochemistry 2nd ed, Voet/Voet

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Fig 16.8

Mechanism of Phosphoglycerate Mutase

*

Biochemistry 2nd ed, Voet/Voet

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BPG Modulates O2 Binding to HbBPG decreases Hb affinity for O2

BPG bound in T form (stabilizes)

BPG released in T to R conversion

Without BPG, O2 not released

*BPG increases in altitude adaptation

*Fetal Hb has reduced affinity for BPG

His changed to Ser

Higher affinity for O2

Fig 9.22 Biochemistry 2nd ed, Voet/Voet

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Biochemistry 2nd ed, Voet/Voet

Fates of Pyruvate

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Regeneration of NAD+

Pyruvate

Lactate

Fig. 16.25Biochemistry 2nd ed, Voet/Voet

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Cori Cycle

Fig 21.9 Biochemistry 2nd ed, Voet/Voet

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Gluconeogenesis (GNG)

Fig 21.7Biochemistry 2nd ed, Voet/Voet