BRENDA - Enzyme Database show
show all sequences of 3.5.4.33

A single zinc ion is sufficient for an active Trypanosoma brucei tRNA editing deaminase

Spears, J.L.; Rubio, M.A.; Gaston, K.W.; Wywial, E.; Strikoudis, A.; Bujnicki, J.M.; Papavasiliou, F.N.; Alfonzo, J.D.; J. Biol. Chem. 286, 20366-20374 (2011)

Data extracted from this reference:

Engineering
Amino acid exchange
Commentary
Organism
C136A
kcat/Km is 13% of the wild-type value, mutation in subunit ADAT2
Trypanosoma brucei
C136A/ADAT3 C291A
inactive mutant enzyme, mutation in subunit ADAT2
Trypanosoma brucei
C139A
inactive mutant enzyme, mutation in subunit ADAT2
Trypanosoma brucei
C291A
inactive mutant enzyme, mutation in subunit ADAT3
Trypanosoma brucei
C294A
inactive mutant enzyme, mutation in subunit ADAT3
Trypanosoma brucei
E92A
inactive mutant enzyme, mutation in subunit ADAT2
Trypanosoma brucei
H252A
inactive mutant enzyme, mutation in subunit ADAT3
Trypanosoma brucei
H90A
inactive mutant enzyme, mutation in subunit ADAT2
Trypanosoma brucei
V254E
inactive mutant enzyme, mutation in subunit ADAT3
Trypanosoma brucei
V254L
kcat/Km is 7% of the wild-type value, mutation in subunit ADAT3
Trypanosoma brucei
V254T
kcat/Km is 20% of the wild-type value, mutation in subunit ADAT3
Trypanosoma brucei
KM Value [mM]
KM Value [mM]
KM Value Maximum [mM]
Substrate
Commentary
Organism
Structure
0.00075
-
adenine34 in tRNAVal
27°C, pH 8.0, wild-type enzyme
Trypanosoma brucei
0.0015
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme C136A, mutation in subunit ADAT2
Trypanosoma brucei
0.0021
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme V254T, mutation in subunit ADAT2
Trypanosoma brucei
0.0028
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme V254L, mutation in subunit ADAT3
Trypanosoma brucei
Metals/Ions
Metals/Ions
Commentary
Organism
Structure
Zn2+
wild type enzyme coordinates two Zn2+ per heterodimer. Mutation of one of the key Zn2+-coordinating cysteines in TbADAT2 yields a functional enzyme with a single bound zinc
Trypanosoma brucei
Natural Substrates/ Products (Substrates)
Natural Substrates
Organism
Commentary (Nat. Sub.)
Natural Products
Commentary (Nat. Pro.)
Organism (Nat. Pro.)
Reversibility
adenine34 in tRNAVal + H2O
Trypanosoma brucei
-
hypoxanthine34 in tRNAVal + NH3
-
-
?
Organism
Organism
Primary Accession No. (UniProt)
Commentary
Textmining
Trypanosoma brucei
-
-
-
Substrates and Products (Substrate)
Substrates
Commentary Substrates
Literature (Substrates)
Organism
Products
Commentary (Products)
Literature (Products)
Organism (Products)
Reversibility
adenine34 in tRNAVal + H2O
-
719934
Trypanosoma brucei
hypoxanthine34 in tRNAVal + NH3
-
-
-
?
Temperature Optimum [°C]
Temperature Optimum [°C]
Temperature Optimum Maximum [°C]
Commentary
Organism
27
-
assay at
Trypanosoma brucei
Turnover Number [1/s]
Turnover Number Minimum [1/s]
Turnover Number Maximum [1/s]
Substrate
Commentary
Organism
Structure
0.00083
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme C136A, mutation in subunit ADAT2; 27°C, pH 8.0, mutant enzyme V254L, mutation in subunit ADAT3
Trypanosoma brucei
0.0018
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme V254T, mutation in subunit ADAT2
Trypanosoma brucei
0.0032
-
adenine34 in tRNAVal
27°C, pH 8.0, wild-type enzyme
Trypanosoma brucei
pH Optimum
pH Optimum Minimum
pH Optimum Maximum
Commentary
Organism
8
-
assay at
Trypanosoma brucei
Engineering (protein specific)
Amino acid exchange
Commentary
Organism
C136A
kcat/Km is 13% of the wild-type value, mutation in subunit ADAT2
Trypanosoma brucei
C136A/ADAT3 C291A
inactive mutant enzyme, mutation in subunit ADAT2
Trypanosoma brucei
C139A
inactive mutant enzyme, mutation in subunit ADAT2
Trypanosoma brucei
C291A
inactive mutant enzyme, mutation in subunit ADAT3
Trypanosoma brucei
C294A
inactive mutant enzyme, mutation in subunit ADAT3
Trypanosoma brucei
E92A
inactive mutant enzyme, mutation in subunit ADAT2
Trypanosoma brucei
H252A
inactive mutant enzyme, mutation in subunit ADAT3
Trypanosoma brucei
H90A
inactive mutant enzyme, mutation in subunit ADAT2
Trypanosoma brucei
V254E
inactive mutant enzyme, mutation in subunit ADAT3
Trypanosoma brucei
V254L
kcat/Km is 7% of the wild-type value, mutation in subunit ADAT3
Trypanosoma brucei
V254T
kcat/Km is 20% of the wild-type value, mutation in subunit ADAT3
Trypanosoma brucei
KM Value [mM] (protein specific)
KM Value [mM]
KM Value Maximum [mM]
Substrate
Commentary
Organism
Structure
0.00075
-
adenine34 in tRNAVal
27°C, pH 8.0, wild-type enzyme
Trypanosoma brucei
0.0015
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme C136A, mutation in subunit ADAT2
Trypanosoma brucei
0.0021
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme V254T, mutation in subunit ADAT2
Trypanosoma brucei
0.0028
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme V254L, mutation in subunit ADAT3
Trypanosoma brucei
Metals/Ions (protein specific)
Metals/Ions
Commentary
Organism
Structure
Zn2+
wild type enzyme coordinates two Zn2+ per heterodimer. Mutation of one of the key Zn2+-coordinating cysteines in TbADAT2 yields a functional enzyme with a single bound zinc
Trypanosoma brucei
Natural Substrates/ Products (Substrates) (protein specific)
Natural Substrates
Organism
Commentary (Nat. Sub.)
Natural Products
Commentary (Nat. Pro.)
Organism (Nat. Pro.)
Reversibility
adenine34 in tRNAVal + H2O
Trypanosoma brucei
-
hypoxanthine34 in tRNAVal + NH3
-
-
?
Substrates and Products (Substrate) (protein specific)
Substrates
Commentary Substrates
Literature (Substrates)
Organism
Products
Commentary (Products)
Literature (Products)
Organism (Products)
Reversibility
adenine34 in tRNAVal + H2O
-
719934
Trypanosoma brucei
hypoxanthine34 in tRNAVal + NH3
-
-
-
?
Temperature Optimum [°C] (protein specific)
Temperature Optimum [°C]
Temperature Optimum Maximum [°C]
Commentary
Organism
27
-
assay at
Trypanosoma brucei
Turnover Number [1/s] (protein specific)
Turnover Number Minimum [1/s]
Turnover Number Maximum [1/s]
Substrate
Commentary
Organism
Structure
0.00083
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme C136A, mutation in subunit ADAT2; 27°C, pH 8.0, mutant enzyme V254L, mutation in subunit ADAT3
Trypanosoma brucei
0.0018
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme V254T, mutation in subunit ADAT2
Trypanosoma brucei
0.0032
-
adenine34 in tRNAVal
27°C, pH 8.0, wild-type enzyme
Trypanosoma brucei
pH Optimum (protein specific)
pH Optimum Minimum
pH Optimum Maximum
Commentary
Organism
8
-
assay at
Trypanosoma brucei
KCat/KM [mM/s]
kcat/KM Value [1/mMs-1]
kcat/KM Value Maximum [1/mMs-1]
Substrate
Commentary
Organism
Structure
0.3
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme V254L, mutation in subunit ADAT3
Trypanosoma brucei
0.55
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme C136A, mutation in subunit ADAT2
Trypanosoma brucei
0.86
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme V254T, mutation in subunit ADAT2
Trypanosoma brucei
4.3
-
adenine34 in tRNAVal
27°C, pH 8.0, wild-type enzyme
Trypanosoma brucei
KCat/KM [mM/s] (protein specific)
KCat/KM Value [1/mMs-1]
KCat/KM Value Maximum [1/mMs-1]
Substrate
Commentary
Organism
Structure
0.3
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme V254L, mutation in subunit ADAT3
Trypanosoma brucei
0.55
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme C136A, mutation in subunit ADAT2
Trypanosoma brucei
0.86
-
adenine34 in tRNAVal
27°C, pH 8.0, mutant enzyme V254T, mutation in subunit ADAT2
Trypanosoma brucei
4.3
-
adenine34 in tRNAVal
27°C, pH 8.0, wild-type enzyme
Trypanosoma brucei
Other publictions for EC 3.5.4.33
No.
1st author
Pub Med
title
organims
journal
volume
pages
year
Activating Compound
Application
Cloned(Commentary)
Crystallization (Commentary)
Engineering
General Stability
Inhibitors
KM Value [mM]
Localization
Metals/Ions
Molecular Weight [Da]
Natural Substrates/ Products (Substrates)
Organic Solvent Stability
Organism
Oxidation Stability
Posttranslational Modification
Purification (Commentary)
Reaction
Renatured (Commentary)
Source Tissue
Specific Activity [micromol/min/mg]
Storage Stability
Substrates and Products (Substrate)
Subunits
Temperature Optimum [°C]
Temperature Range [°C]
Temperature Stability [°C]
Turnover Number [1/s]
pH Optimum
pH Range
pH Stability
Cofactor
Ki Value [mM]
pI Value
IC50 Value
Activating Compound (protein specific)
Application (protein specific)
Cloned(Commentary) (protein specific)
Cofactor (protein specific)
Crystallization (Commentary) (protein specific)
Engineering (protein specific)
General Stability (protein specific)
IC50 Value (protein specific)
Inhibitors (protein specific)
Ki Value [mM] (protein specific)
KM Value [mM] (protein specific)
Localization (protein specific)
Metals/Ions (protein specific)
Molecular Weight [Da] (protein specific)
Natural Substrates/ Products (Substrates) (protein specific)
Organic Solvent Stability (protein specific)
Oxidation Stability (protein specific)
Posttranslational Modification (protein specific)
Purification (Commentary) (protein specific)
Renatured (Commentary) (protein specific)
Source Tissue (protein specific)
Specific Activity [micromol/min/mg] (protein specific)
Storage Stability (protein specific)
Substrates and Products (Substrate) (protein specific)
Subunits (protein specific)
Temperature Optimum [°C] (protein specific)
Temperature Range [°C] (protein specific)
Temperature Stability [°C] (protein specific)
Turnover Number [1/s] (protein specific)
pH Optimum (protein specific)
pH Range (protein specific)
pH Stability (protein specific)
pI Value (protein specific)
Expression
General Information
General Information (protein specific)
Expression (protein specific)
KCat/KM [mM/s]
KCat/KM [mM/s] (protein specific)
718952
Su
A-to-I and C-to-U editing with ...
Agrobacterium tumefaciens, Aquifex aeolicus, Escherichia coli, Streptococcus pyogenes
Biochemistry
76
932-937
2011
-
-
-
-
-
-
-
-
-
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4
-
9
-
-
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-
-
-
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4
-
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-
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-
-
-
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-
-
-
-
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4
-
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4
-
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-
-
-
-
-
-
-
-
-
-
-
719934
Spears
A single zinc ion is sufficien ...
Trypanosoma brucei
J. Biol. Chem.
286
20366-20374
2011
-
-
-
-
11
-
-
4
-
1
-
1
-
4
-
-
-
-
-
-
-
-
1
-
1
-
-
3
1
-
-
-
-
-
-
-
-
-
-
-
11
-
-
-
-
4
-
1
-
1
-
-
-
-
-
-
-
-
1
-
1
-
-
3
1
-
-
-
-
-
-
-
4
4
721030
Ragone
The C-terminal end of the Tryp ...
Trypanosoma brucei
RNA
17
1296-1306
2011
-
-
1
-
9
-
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6
-
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-
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1
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-
-
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1
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1
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6
1
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1
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9
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6
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-
1
-
1
-
-
6
1
-
-
-
-
-
-
-
6
6
713269
Delannoy
Arabidopsis tRNA adenosine dea ...
Arabidopsis thaliana
Plant Cell
21
2058-2071
2009
-
-
1
-
-
-
-
-
2
-
-
1
-
7
-
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-
-
2
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1
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2
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-
1
-
-
-
-
-
-
-
-
2
-
-
-
-
-
-
-
-
-
-
1
1
-
-
-
721023
Karcher
Identification of the chloropl ...
Arabidopsis thaliana
RNA
15
1251-1257
2009
-
-
1
-
-
-
-
-
1
-
-
1
-
6
-
-
-
-
-
-
-
-
1
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-
-
-
-
-
-
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-
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1
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-
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-
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1
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-
1
-
-
-
-
-
-
-
-
1
-
-
-
-
-
-
-
-
-
-
1
1
-
-
-
698470
Luo
Transition state structure of ...
Escherichia coli
J. Am. Chem. Soc.
130
2649-2655
2008
-
-
-
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1
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1
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-
1
-
-
-
-
-
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-
-
-
-
-
-
-
-
719843
Tsutsumi
Wobble inosine tRNA modificati ...
Schizosaccharomyces pombe
J. Biol. Chem.
282
33459-33465
2007
-
-
-
-
-
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4
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-
1
1
-
-
-
720892
Rubio
An adenosine-to-inosine tRNA-e ...
Trypanosoma brucei
Proc. Natl. Acad. Sci. USA
104
7821-7826
2007
-
-
-
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1
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4
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2
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1
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-
-
-
2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
721010
Lee
Crystal structure of the tRNA- ...
Streptococcus pyogenes
Proteins
68
1016-1019
2007
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1
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1
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1
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1
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1
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-
-
689140
Losey
Crystal structure of Staphyloc ...
Staphylococcus aureus
Nat. Struct. Mol. Biol.
13
153-159
2006
-
-
1
1
-
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-
1
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1
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1
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1
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1
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669323
Kuratani
Crystal structure of tRNA aden ...
Aquifex aeolicus
J. Biol. Chem.
280
16002-16008
2005
-
-
1
1
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1
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1
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1
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1
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2
1
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1
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1
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1
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1
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1
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2
1
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-
718485
Ku
Crystallization and preliminar ...
Streptococcus pyogenes, Streptococcus pyogenes ATCC BAA-946
Acta Crystallogr. Sect. F
61
375-357
2005
-
-
1
1
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5
-
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1
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1
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1
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1
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718839
Elias
Biochemical and structural stu ...
Agrobacterium tumefaciens, Aquifex aeolicus, Escherichia coli, Saccharomyces cerevisiae, Saccharomyces cerevisiae ATCC 204508
Biochemistry
44
12057-12065
2005
-
-
4
1
4
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1
-
5
-
14
-
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4
-
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-
-
10
4
4
-
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4
-
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4
-
1
4
-
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-
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-
1
-
5
-
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-
4
-
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-
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10
4
4
-
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-
4
-
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-
-
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-
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-
719356
Wolf
tadA, an essential tRNA-specif ...
Escherichia coli
EMBO J.
21
3841-3851
2002
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-
1
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1
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1
1
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4
-
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1
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2
1
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1
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1
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1
1
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1
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-
2
1
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-
-
-
-
-
-
1
1
-
-
-
721050
Gerber
An adenosine deaminase that ge ...
Saccharomyces cerevisiae, Saccharomyces cerevisiae ATCC 204508
Science
286
1146-1149
1999
-
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1
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2
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4
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2
1
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1
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2
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2
1
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-
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-
720220
Auxilien
Mechanism, specificity and gen ...
Saccharomyces cerevisiae, Saccharomyces cerevisiae ATCC 204508
J. Mol. Biol.
262
437-458
1996
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3
1
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1
1
2
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7
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1
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8
-
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3
-
1
-
1
1
2
-
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1
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8
-
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