study_ing
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can we please start a thread for rate limiting reactions..
any one who remembers any reaction(with surity) .please list.
i think we shud concentrate on just the name of the enzymes, not their regulators etc or it wud be too complicated.
such a list if reviewed frequently will be a great help
thanx
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| study_ing
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(try and be random coz it seems like we know them whist doing the chapters but not individually)
1.heme synthesis
2. Cholesterol synthesis
3. HMP shunt
1.ALA synthase
2. HMG coA reductase
3. G6PD
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| study_ing
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4. lipolysis
5.glycogen synthesis
6. HMG reductase is for cholesterol synthesis. what is HMG CoA synthase a key enzyme in?
4.carnitine acetlytransferase
5.glycogen synthase
6.KETONE body synthesis
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| study_ing
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no one wants to join??
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7. Rate limiting step in urea synthesis?
7. carbomyl phosphate synthetase
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8. gluconeogensis
9. Purine synthesis
10 lipid cataboilsm
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| tolito
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8. glu 6 phosphatase?
9. PPRP amido transferase
10. ??
11. glycolysis
12. cac
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8. fructose 1,6 bisphosphatase
9. glutamine PRPP aminotransferase
10. scroll back to 4 hehe!
11. PFK 1
12 CaC???
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| DrVirgo
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what is CAC?
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| DrVirgo
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Oh ok Citric acid cycle! 
Isocitrate DH (i think).
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| tolito
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you guys are wonderful!!!
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any one can think of remebering CPS 1 vs 2
keep forgeeting which is for pyrimidine vs urea
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| DrVirgo
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2 rhymes with NEW.
To make NEW pyramidine (de novo pyramidine synthesis), you need CPS-II.
CPS-I is no fun.
Urea (piss or urine sample) is not fun to deal with.
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| tolito
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what is CPS??
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| study_ing
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Nice dr virgo...
i think we shoud start our own MRS series
carbamoyl phosphate synthetase
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| study_ing
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wanna talk about a few importnt cofactors?
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| tolito
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yes,
1. lysyl oxidase
2. collagenase
3. activation of clotting factor IX
4. activation of clotting factor x
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1. Cu
2.. vit c
3. vit K
4. VIt K
5. cystathione synthesis
5. cystathione degradation
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or was it homocysteine
way too sleepy now...ok one reqd B12, the other B6...cant remember which amino acid it was...
homocysteine, methionine or cyst...
sorry
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| study_ing
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ok i checked it
5. enzyme homocysteine -->cystathionine
6.homocydteine --> methionine
ans 5. B6
6. B12
and the really tough one
7. PHENYLALANINE HYDOXYLASE
(BEWARE!! they may test u for this by mentioning a pt with PKU but normal E activity)
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