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Exam W 1/28 6-8 pm SL 120 Office hours this week: T 2-3, W 2-4. GA3P. +. TPI. DHAP. F6P. . DHAP. GA3P. GAP DH. Start of energy producing phase of glycolysis: Production of the first hi energy molecule.

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Presentation Transcript
slide1

Exam W 1/28 6-8 pm

SL 120

Office hours this week: T 2-3, W 2-4

slide2

GA3P

+

TPI

DHAP

F6P

DHAP

GA3P

slide3

GAP DH

Start of energy producing phase of glycolysis:

Production of the first hi energy molecule.

figure 17 14 enzymatic mechanism of glyceraldehyde 3 phosphate dehydrogenase
Figure 17-14 Enzymatic mechanism of glyceraldehyde-3 phosphate dehydrogenase.

Go’ = +6.7 kJ!

Page 596

slide5
Figure 17-15 Space-filling model of yeast phosphoglycerate kinase showing its deeply clefted bilobal structure.

Page 597

figure 17 16 mechanism of the pgk reaction
Figure 17-16 Mechanism of the PGK reaction.

Go’ = -12.1 kJ

Go’ = -49.4 kJ!

Page 597

slide7

Phosphoglucomutase--PGM

Mutases move functional groups: 3PG2PG

figure 17 18 proposed reaction mechanism for phospho glycerate mutase
Figure 17-18 Proposed reaction mechanism for phospho-glycerate mutase.

Phosphorylated

active site

Bisphospho-

intermediate.

Page 599

figure 17 21 proposed reaction mechanism of enolase
Figure 17-21 Proposed reaction mechanism of enolase.

F- binds Pi + Mg+2

Potent inhibitor

Page 601

figure 17 29 the formation of the active ylid form of tpp in the pyruvate decarboxylase reaction
Figure 17-29 The formation of the active ylid form of TPP in the pyruvate decarboxylase reaction.

Page 606

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