2.2.1.1: transketolase
This is an abbreviated version!
For detailed information about transketolase, go to the full flat file.
Word Map on EC 2.2.1.1
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2.2.1.1
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thiamin
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pentose
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erythrocyte
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pyrophosphate
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transaldolase
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glucose-6-phosphate
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tpp
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ribose
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5-phosphate
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aldolase
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non-oxidative
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glycation
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encephalopathy
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pyridoxine
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apoenzyme
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phosphoglycerate
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wernicke
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baker
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oxythiamine
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neuropathy
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ribose-5-phosphate
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thiamine-deficient
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xylulose
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thiamine-dependent
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6-phosphogluconate
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riboflavin
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calvin
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pharmacology
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drug development
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biotechnology
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pentose-phosphate
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xylulokinase
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industry
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alpha-ketoglutarate
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dihydroxyacetone
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warburg
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phosphoketolase
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3-epimerase
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hemolysates
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pyrophosphokinase
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xylitol
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phosphoribulokinase
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thiaminase
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hydroxypyruvate
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aminopyrimidine
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fructose-6-phosphate
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medicine
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fructose-1,6-bisphosphate
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antivitaminous
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erythrose
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egypt
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thdp-dependent
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diphosphate-dependent
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synthesis
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isotopomer
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analysis
- 2.2.1.1
- thiamin
- pentose
- erythrocyte
- pyrophosphate
- transaldolase
- glucose-6-phosphate
- tpp
- ribose
- 5-phosphate
- aldolase
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non-oxidative
-
glycation
- encephalopathy
- pyridoxine
-
apoenzyme
- phosphoglycerate
- wernicke
-
baker
- oxythiamine
- neuropathy
- ribose-5-phosphate
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thiamine-deficient
- xylulose
-
thiamine-dependent
- 6-phosphogluconate
- riboflavin
-
calvin
- pharmacology
- drug development
- biotechnology
-
pentose-phosphate
- xylulokinase
- industry
- alpha-ketoglutarate
- dihydroxyacetone
-
warburg
- phosphoketolase
-
3-epimerase
- hemolysates
-
pyrophosphokinase
- xylitol
- phosphoribulokinase
- thiaminase
- hydroxypyruvate
- aminopyrimidine
- fructose-6-phosphate
- medicine
- fructose-1,6-bisphosphate
-
antivitaminous
- erythrose
-
egypt
-
thdp-dependent
-
diphosphate-dependent
- synthesis
-
isotopomer
- analysis
Reaction
Synonyms
glycolaldehydetransferase, STM14_2885, STM14_2886, TK16, TKA, TKL, TKL1, Tkl2, TKT, TKT10, TKT3, TKT7, TktA, TktB, TKTc, TKTL-1, TKTL1, TKTL2, TKTp, transketolase, transketolase 10, transketolase 3, transketolase 7, transketolase A, transketolase B, transketolase like 1, transketolase-1, transketolase-like 1, transketolase-like enzyme 1, transketolase-like-1, transketolase-like-1-gene, transketolase-like-2
ECTree
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Reaction
Reaction on EC 2.2.1.1 - transketolase
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sedoheptulose 7-phosphate + D-glyceraldehyde 3-phosphate = D-ribose 5-phosphate + D-xylulose 5-phosphate
sedoheptulose 7-phosphate + D-glyceraldehyde 3-phosphate = D-ribose 5-phosphate + D-xylulose 5-phosphate
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sedoheptulose 7-phosphate + D-glyceraldehyde 3-phosphate = D-ribose 5-phosphate + D-xylulose 5-phosphate
donor substrate, but not acceptor substrate, enhances affinity of cofactor to apoenzyme to a different degree for the two active centers, resulting in a negative cooperativity for cofactor binding. Reaction intermediate is a 2-(alpha,beta-dihydroxyethyl)-thiamine diphosphate, which exhibits a higher affinity for the enzyme than thiamine diphosphate
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sedoheptulose 7-phosphate + D-glyceraldehyde 3-phosphate = D-ribose 5-phosphate + D-xylulose 5-phosphate
equilibrium binding constants, first order rates of binding of cofactor
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sedoheptulose 7-phosphate + D-glyceraldehyde 3-phosphate = D-ribose 5-phosphate + D-xylulose 5-phosphate
H103 stabilizes reaction intermediate, kinetics
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sedoheptulose 7-phosphate + D-glyceraldehyde 3-phosphate = D-ribose 5-phosphate + D-xylulose 5-phosphate
negative cooperativity between apoenzyme and thiamine diphosphate in presence of Ca2+ or Mg2+, caused by increase in the rate of conformational transfer after the thiamine diphosphate binding completion in both active centers, kinetic analysis
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sedoheptulose 7-phosphate + D-glyceraldehyde 3-phosphate = D-ribose 5-phosphate + D-xylulose 5-phosphate
formation of the central 1,2-dihydroxyethyl-thiamine diphosphate carbanion-enamine intermediate is thermodynamically favored with increasing carbon chain length of the donor ketose substrate