4.1.99.1: tryptophanase
This is an abbreviated version!
For detailed information about tryptophanase, go to the full flat file.
Word Map on EC 4.1.99.1
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4.1.99.1
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quinonoid
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transposase
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aldimine
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proteus
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phenol-lyase
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thermonuclease
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beta-elimination
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l-trp
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tryptophan-induced
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antitermination
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pyridoxal-p
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rho-dependent
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rapid-scanning
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phillips
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alvei
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analysis
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food industry
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biotechnology
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drug development
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medicine
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synthesis
- 4.1.99.1
-
quinonoid
- transposase
-
aldimine
- proteus
-
phenol-lyase
- thermonuclease
-
beta-elimination
- l-trp
-
tryptophan-induced
-
antitermination
-
pyridoxal-p
-
rho-dependent
-
rapid-scanning
-
phillips
- alvei
- analysis
- food industry
- biotechnology
- drug development
- medicine
- synthesis
Reaction
Synonyms
L-tryptophan indole-lyase, L-tryptophanase, TIL, tna2, TnaA, tnaA2, TNase, Tpase, Trpase, tryptophan indole lyase, tryptophan indole-lyase, tryptophan-indole lyase, tryptophanase, tryptophanase 2, VcTrpase
ECTree
4.1.99.1 tryptophanaseAdvanced search results
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results (Temperature Stability
Temperature Stability on EC 4.1.99.1 - tryptophanase
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TEMPERATURE STABILITY 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
4
VcTrpase does not dissociate into inactive dimers or monomers at 4°C
40 - 70
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the enzyme is stable up to 40°C, but only 40% of the activity remains at 60°C, the enzyme is completely inactivated at temperatures above 70°C
55
60
65
80
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5 min, Tna1 retains alomost complete activity, Tna2 is inactivated
90
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5 min, Tna1 retains more than 70% of activity, Tna2 is inactivated
additional information
2
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upon cooling to 2°C, inactivation and dissociation of teramer to dimer occurs, spectrofluorometry data
2
subsequent to incubation at 2°C, wild type Trpase loses about 35% of its activity followed by dissociation into dimers. Complete dissociation/inactivation occurs after incubation for 20 h at 2°C and association/reactivation occurs upon warming for few hours
additional information
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mutant strain ts6 with an enzyme with higher thermostability
additional information
inactivation of the enzyme at low temperatures due to dissociation of the active tetramer into dimers upon cold incubation
additional information
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inactivation of the enzyme at low temperatures due to dissociation of the active tetramer into dimers upon cold incubation
additional information
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about 80% activity at 50°C after 2 hours, about 20% activity after incubation at 0°C for 3 hours
additional information
rapid loss of activity at 50°C, no change in activity on incubation at 0°C for more than 3 hours
additional information
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rapid loss of activity at 50°C, no change in activity on incubation at 0°C for more than 3 hours
