BIS 103: Glutathione, Pentose phosphate pathway Flashcards
structure of glutathione
gamma E - cys - glyceine
glutathione synthesis
gamma E CO2- becomes acyl phosphate
Cys amino attacks acyl phosphate
Cys CO2- becomes acyl phosphate
gly amino attacks acyl phosphate
enzyme that reduces glutathione
substrate?
glutathione reductase
2 NADPH
oxidative Pentose phosphate pathway-result
makes ribose-5-P
ox, so reduces to make NADPH
NADPH functions
- used to reduce ECG
- makes molecules (biosyn)
- in B-ox
where does Pentose phosphate pathway occur?
cytosol - easily reversible
nonoxidative Pentose phosphate pathway - result
makes G6P
carbon shuttlers - ox or nonox?
nonox
transketolase - moves 2, uses TPP
transaldolase - moves 3, uses schiff base
(lys -NH-c=c OH
1st enzyme in ox Pentose phosphate pathway
G6p dehydrogenase
REVIEW PDH
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