HOME
login
history
all enzymes
BRENDA home
History
Enzyme Nomenclature
Information on EC 1.14.11.8 - trimethyllysine dioxygenase
for references in articles please use BRENDA:EC1.14.11.8
Word Map on EC 1.14.11.8
- 1.14.11.8
- carnitine
- gamma-butyrobetaine
-
autism
-
long-chain
-
inborn
-
hydroxymethyltransferase
Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
Specify your search results
The enzyme appears in viruses and cellular organisms
topPlease wait a moment until the data is sorted. This message will disappear when the data is sorted.
EC NUMBER 
COMMENTARY 
1.14.11.8
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
RECOMMENDED NAME
GeneOntology No.
trimethyllysine dioxygenase
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2 = 3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
-
-
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
redox reaction
-
-
-
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
PATHWAY
BRENDA Link
KEGG Link
MetaCyc Link
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SYSTEMATIC NAME
IUBMB Comments
N6,N6,N6-trimethyl-L-lysine,2-oxoglutarate:oxygen oxidoreductase (3-hydroxylating)
Requires Fe2+ and ascorbate.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
CAS REGISTRY NUMBER
COMMENTARY
84012-77-1
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
ORGANISM
COMMENTARY
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
evolution
metabolism
physiological function
additional information
-
residue Asp131 in TMLHis responsible for specific binding of the alpha-ammonium group of trimethyllysine
evolution
-
the enzyme belongs to the non-heme Fe(II) and 2-oxoglutarate dependent oxygenases
evolution
-
the enzyme belongs to the family of 2-oxoglutarate (2OG)-dependent oxygenases
evolution
-
the enzyme belongs to the family of 2-oxoglutarate (2OG)-dependent oxygenases. Members of Fe(II) and 2-oxoglutarate-dependent oxygenases catalyze stereoselective hydroxylations of unactivated C-H bonds in various (bio)molecules, including proteins, DNA, and small molecule metabolites
metabolism
-
the enzyme catalyzes the first step in the biosynthesis of carnitine
metabolism
-
the enzyme catalyzes the first step in the biosynthesis of carnitine, i.e. L-3-hydroxy-4-N-N-N-trimethylaminobutyrate. Lysine in protein peptide linkages undergoes methylation of the 1-amino group to yield trimethyllysine, TML, which is released upon protein degradation. Muscle is the major source of TML. The released TML is further oxidised to gamma-butyrobetaine by the action of trimethyllysine dioxygenase, 3-hydroxy-N-trimethyllysine aldolase and 4-N-trimethylaminobutyraldehyde dehydrogenase
metabolism
-
trimethyllysine hydroxylase (TMLH) catalyses C-3 hydroxylation of Nepsilon-trimethyllysine in the first step of carnitine biosynthesis
metabolism
-
the enzyme catalyses the first step in mammalian biosynthesis of carnitine, which plays a crucial role in fatty acid metabolism. Carnitine biosynthesis patway, overview
metabolism
-
trimethyllysine hydroxylase (TMLH) catalyses C-3 hydroxylation of Nepsilon-trimethyllysine in the first step of carnitine biosynthesis in humans
metabolism
-
trimethyllysine hydroxylase (TMLH) is involved in the first step of the physiologically important carnitine biosynthesis pathway. The enzyme catalyzes C-3 hydroxylation of (2S)-Nepsilon-L-trimethyllysine, to produce 3-hydroxy-Nepsilon-L-trimethyllysine, which then undergoes three additional enzymatic steps to the final L-carnitine
metabolism
-
trimethyllysine hydroxylase (TMLH) catalyses the first step in carnitine biosynthesis, the conversion of N6,N6,N6-trimethyl-L-lysine to 3-hydroxy-N6,N6,N6-trimethyl-L-lysine
physiological function
-
trimethyllysine hydroxylase (TMLH) catalyses C-3 hydroxylation of Nepsilon-trimethyllysine in the first step of carnitine biosynthesis
physiological function
-
trimethyllysine hydroxylase (TMLH) catalyses C-3 hydroxylation of Nepsilon-trimethyllysine in the first step of carnitine biosynthesis in humans
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SUBSTRATE
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
N5,N5,N5-trimethyl-L-ornithine + 2-oxoglutarate + O2
(3S)-3-hydroxy-N5,N5,N5-trimethyl-L-ornithine + succinate + CO2
-
-
-
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
(3S)-3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
N6,N6-dimethyl-N6-ethyl-L-lysine + 2-oxoglutarate + O2
(3S)-3-hydroxy-N6,N6-dimethyl-N6-ethyl-L-lysine + succinate + CO2
-
-
-
-
?
N6,N6-dimethyl-N6-isopropyl-L-lysine + 2-oxoglutarate + O2
(3S)-3-hydroxy-N6,N6-dimethyl-N6-isopropyl-L-lysine + succinate + CO2
-
-
-
-
?
N6,N6-dimethyl-N6-propyl-L-lysine + 2-oxoglutarate + O2
(3S)-3-hydroxy-N6,N6-dimethyl-N6-propyl-L-lysine + succinate + CO2
-
-
-
-
?
N6-fluoromethyl-N6,N6-dimethyl-L-lysine + 2-oxoglutarate + O2
(3S)-3-hydroxy-N6-fluoromethyl-N6,N6-dimethyl-L-lysine + succinate + CO2
-
Nepsilon-trimethyllysine analogue that contains the fluoromethyl group can be used as a 1H and 19F NMR probe for studies on TMLH catalysis
-
-
?
N7,N7,N7-trimethyl-L-alpha-homolysine + 2-oxoglutarate + O2
(3S)-3-hydroxy-N7,N7,N7-trimethyl-L-alpha-homolysine + succinate + CO2
-
-
-
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
(3S)-3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
-
-
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
(3S)-3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
the enzymatic hydroxylation occurs at the C-3 site of (2S)-Nepsilon-trimethyllysine substrate. Comparative NMR spectroscopic studies (with two enantiopure synthetic standards that possess 3R and 3S stereochemistry) on the enzymatically produced (2S)-3-hydroxy-Nepsilon-trimethyllysine reveal that TMLH exclusively catalyzes the formation of (3S)-3-hydroxy-Nepsilon-trimethyl-L-lysine, not forming any (3R)-3-hydroxy-Nepsilon-trimethyl-L-lysine diastereoisomer
-
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
N6,N6, N6-trimethyl-L-lysine is epsilon-N-trimethyl-L-lysine
-
-
-
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
-
-
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
-
-
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
-
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
N6,N6, N6-trimethyl-L-lysine is epsilon-N-trimethyl-L-lysine
-
-
-
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
-
-
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
N6,N6, N6-trimethyl-L-lysine is epsilon-N-trimethyl-L-lysine
-
-
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
N6,N6, N6-trimethyl-L-lysine is epsilon-N-trimethyl-L-lysine
-
-
-
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
carnitine biosynthesis
-
-
-
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
first enzyme of the L-carnitine biosynthesis
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
-
-
-
?
additional information
?
-
-
determination of the (2S,3S)-3-hydroxy-N6,N6,N6-trimethyl-L-lysine and N6,N6,N6-trimethyl-L-lysine is performed by ultraperformance liquid chromatographytandem mass spectrometry (UPLC/MS/MS) in positive ion electrospray mode
-
-
-
additional information
?
-
-
NMR spectrosopic structure analysis of substrates and products
-
-
-
additional information
?
-
-
NMR spectrosopic structure analysis of substrates and products, substrate specificity, overview. No or poor activity with dimethyllysine, methyllysine, lysine, D-trimethyllysine, 5-trimethylamino-1-aminopentane, trimethyllysine, 6-trimethylaminohexanoic acid, hexamethyllysine, N-acetyltrimethyllysine, trimethyldiaminobutyric acid, triethyllysine, symmetric and asymmetric dimethylarginines, mildronate, and gamma-butyrobetaine, structure-activity relationship study
-
-
-
additional information
?
-
-
enzyme is localized to the mitochondrial matrix, product formation is limited by 6-N-trimethyllysine transport across the mitochondrial inner membrane
-
-
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
NATURAL SUBSTRATES
NATURAL PRODUCTS
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
(3S)-3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
-
-
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
additional information
?
-
-
enzyme is localized to the mitochondrial matrix, product formation is limited by 6-N-trimethyllysine transport across the mitochondrial inner membrane
-
-
-
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
-
-
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
carnitine biosynthesis
-
-
-
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
Q91ZW6
first enzyme of the L-carnitine biosynthesis
-
?
N6,N6,N6-trimethyl-L-lysine + 2-oxoglutarate + O2
3-hydroxy-N6,N6,N6-trimethyl-L-lysine + succinate + CO2
-
-
-
-
?
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
COFACTOR
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
METALS and IONS
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Ca2+
Fe2+
Fe2+
-
preincubation with Fe2+ in absence of other cofactors inactivates (ascorbate or dithiothreitol prevents inactivation); required
Fe2+
-
dependent on, non-heme Fe(II) and 2-oxoglutarate dependent oxygenase, Fe2+ is required for catalysis
Fe2+
-
absence of the cofactor Fe2+ does not completely abolish enzyme activity, even when endogenous Fe2+ is removed from the homogenate with a gel filtration column
Fe2+
-
absence of the cofactor Fe2+ does not completely abolish enzyme activity, even when endogenous Fe2+ is removed from the homogenate with a gel filtration column
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
INHIBITORS
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
7.5
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
37
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
SOURCE
additional information
-
tissue-dependent enzyme expression in case of high-lysine diet, overview
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY
GeneOntology No.
LITERATURE
SOURCE
additional information
-
no activity found in microsomal or soluble fractions of liver
-
-
mitochondrial matrix, product formation is limited by 6-N-trimethyllysine transport across the mitochondrial inner membrane
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SUBUNITS
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
dimer
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
POSTTRANSLATIONAL MODIFICATION
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
proteolytic modification
the enzyme is synthesized as a 47500 Da precursor and processed to a mature protein of 43000 Da, presumably upon import into mitochondria
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
STORAGE STABILITY
ORGANISM
UNIPROT
LITERATURE
4°C, recombinant enzyme, after storage at 4°C for 4 days, MBP-TMLH retains 96% of its activity, while detagged TMLH shows only 77% activity compared to fresh enzyme preparation
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Purification/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
recombinant active and stable His- and MBP-tagged TMLH from Escherichia coli strain BL21-AI by nickel or amylose affinity chromatography. It is possible that the His6-tag at the N-terminus of the fusion protein is masked and cannot be accessed by the Ni-beads. Thus, MBP affinity purification is selected as a first purification step, followed by gel filtration, His6-MBP-tag cleavage by recombinant TEV protease
-
recombinant MBP-taged enzyme by affinity chromatography, tag cleavage by rTEV protease, and gel filtration
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Cloned/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
expressed in COS-1 cells
gene TMLH, recombinant overexpression of active and stable TMLH as a His-tagged maltose-binding protein fusion in Escherichia coli strain BL21-AI. Coexpression of the enzyme with chaperones GroES/EL increases the expression level by one order of magnitude
-
when the putative cDNA is expressed in either Escherichia coli or Saccharomyces cerevisiae no enzyme activity can be detected in lysates of theses cells. High activity can be measured in lysates of COS cells transfected with the putative rat cDNA, whereas only low activity is measured in lysates of cells transfected with the pcDNA3 vector without insert
when the putative cDNA is expressed in either Escherichia coli or Saccharomyces cerevisiae no enzyme activity can be detected in lysates of theses cells. High activity can be measured in lysates of COS cells transfected with the putative rat cDNA, whereas only low activity is measured in lysates of cells transfected with the pcDNA3 vector without insert
-
when the putative cDNA is expressed in either Escherichia coli or Saccharomyces cerevisiae no enzyme activity can be detected in lysates of theses cells. High activity can be measured in lysates of COS cells transfected with the putative rat cDNA, whereas only low activity is measured in lysates of cells transfected with the pcDNA3 vector without insert
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
EXPRESSION
ORGANISM
UNIPROT
LITERATURE
pigs fed a high-lysine diet have lower concentrations of free and total carnitine in plasma, liver, kidney and skeletal muscle than control pigs, and have an increased concentration of trimethyllysine, TML, a reduced mRNA abundance of TML dioxygenase and reduced concentrations of gamma-butyrobetaine in muscle, indicating that the conversion of trimethyllysine into gamma-butyrobetaine in muscle is impaired
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
ENGINEERING
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
H389L
additional information
-
construction of senescence marker protein-30/gluconolactonase knockout mice, which cannot synthesize L-ascorbate in vivo, the mutant mice nevertheless produce normal levels of carnitine when fed an L-ascorbate lacking diet
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
LINKS TO OTHER DATABASES (specific for EC-Number 1.14.11.8)
html completed
Use of this online version of BRENDA is free but requires a license. See terms of use.
Information
