Transketolase Transaldolase FIGUHE I234 Mecnainismor CH,CH the transketolase and transaldo- R-CH, CH, Lys-NH lase reactions. CH,CH N-CHA O-C HO-C-H HO-C-H TPP (ylid form) H-C-OH H-C-OH H-c-CH H-C-CH CH,OPO- Xu5P S7P R-CH, CH, CHCH Lys- SN-CHR HO-H HO f-CHOH H-C-oH H-C-CH H-C-OH H-C-OH CH,OPO,- CHOPO,- Protonated Schiff base (iminium ion) GAP 2 H* E4P R-CH, CH, R-CH, CH, CH,CH Resonance- stabilized Lys N-CHLR S N-CH,A carbanions HO--CH,O HO--CHOH HO H* O H+ R-CH CH, H-C-OH H-C-OH H-C-OH o-c-CH,CH Lys-= GAP H-C-OH HO-C-H HO-C-H CH,OPO,- H-C-OH RSP H-C-OH H-C-CH H-C-OH CHOPO, Protonated Schiff base (iminium ion) o- TPP HON CHCH HO-C-H HO--H H-C-CH H-C-OH Lys-N + H-C-OH H-C-OH H-C-CH CHOPO- CHOPO S7P F6P

Biochemistry
6th Edition
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Reginald H. Garrett, Charles M. Grisham
Chapter18: Glycolysis
Section: Chapter Questions
Problem 18P: Distinguishing the Mechanisms of Class I and Class I Aldolases Fructose bisphosphate aldolase in...
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Xylulose-5-phosphate is an intermediate in the pentose phosphate pathway (see Figure ). As xylulose-5-phosphate levels rise in response to excess glucose shunting through the pentose phosphate pathway, does flux through glycolysis increase or decrease?

Transketolase
Transaldolase
FIGUHE I234 Mecnainismor
CH,CH
the transketolase and transaldo-
R-CH,
CH,
Lys-NH
lase reactions.
CH,CH
N-CHA
O-C
HO-C-H
HO-C-H
TPP (ylid form)
H-C-OH
H-C-OH
H-c-CH
H-C-CH
CH,OPO-
Xu5P
S7P
R-CH,
CH,
CHCH
Lys-
SN-CHR
HO-H
HO f-CHOH
H-C-oH
H-C-CH
H-C-OH
H-C-OH
CH,OPO,-
CHOPO,-
Protonated Schiff base (iminium ion)
GAP
2 H*
E4P
R-CH,
CH,
R-CH,
CH,
CH,CH
Resonance-
stabilized
Lys
N-CHLR S
N-CH,A
carbanions
HO--CH,O
HO--CHOH
HO
H* O
H+
R-CH
CH,
H-C-OH
H-C-OH
H-C-OH
o-c-CH,CH
Lys-=
GAP
H-C-OH
HO-C-H
HO-C-H
CH,OPO,-
H-C-OH
RSP
H-C-OH
H-C-CH
H-C-OH
CHOPO,
Protonated Schiff base (iminium ion)
o- TPP
HON
CHCH
HO-C-H
HO--H
H-C-CH
H-C-OH
Lys-N +
H-C-OH
H-C-OH
H-C-CH
CHOPO-
CHOPO
S7P
F6P
Transcribed Image Text:Transketolase Transaldolase FIGUHE I234 Mecnainismor CH,CH the transketolase and transaldo- R-CH, CH, Lys-NH lase reactions. CH,CH N-CHA O-C HO-C-H HO-C-H TPP (ylid form) H-C-OH H-C-OH H-c-CH H-C-CH CH,OPO- Xu5P S7P R-CH, CH, CHCH Lys- SN-CHR HO-H HO f-CHOH H-C-oH H-C-CH H-C-OH H-C-OH CH,OPO,- CHOPO,- Protonated Schiff base (iminium ion) GAP 2 H* E4P R-CH, CH, R-CH, CH, CH,CH Resonance- stabilized Lys N-CHLR S N-CH,A carbanions HO--CH,O HO--CHOH HO H* O H+ R-CH CH, H-C-OH H-C-OH H-C-OH o-c-CH,CH Lys-= GAP H-C-OH HO-C-H HO-C-H CH,OPO,- H-C-OH RSP H-C-OH H-C-CH H-C-OH CHOPO, Protonated Schiff base (iminium ion) o- TPP HON CHCH HO-C-H HO--H H-C-CH H-C-OH Lys-N + H-C-OH H-C-OH H-C-CH CHOPO- CHOPO S7P F6P
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