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Information on EC 2.1.1.56 - mRNA (guanine-N7)-methyltransferase and Organism(s) Homo sapiens

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EC Tree
     2 Transferases
         2.1 Transferring one-carbon groups
             2.1.1 Methyltransferases
                2.1.1.56 mRNA (guanine-N7)-methyltransferase
IUBMB Comments
The terminal N7-methylguanosine facilitates gene expression in eukaryotic cells and is recognized by cap-binding proteins.
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This record set is specific for:
Homo sapiens
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Word Map
The taxonomic range for the selected organisms is: Homo sapiens
The enzyme appears in selected viruses and cellular organisms
Synonyms
non-structural protein 1, nsp14, cap methyltransferase, n7-mtase, mrna cap methyltransferase, nonstructural protein 14, tbcmt1, n7-methyltransferase, tbcgm1, guanine-7-methyltransferase, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
(guanine-N7)-methyltransferase
-
-
cap methyltransferase
-
-
cap N7-MTase
-
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cap N7MTase
-
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cap-methyltransferase
-
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guanine-7-methyltransferase
-
-
-
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messenger ribonucleate guanine 7-methyltransferase
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-
-
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messenger RNA guanine 7-methyltransferase
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-
-
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methyltransferase, messenger ribonucleate guanine 7-
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-
-
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mRNA cap methyltransferase
mRNA guanosine cap by RNA guanine-7-methyltransferase
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RNA guanine-7 methyltransferase
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RNA guanine-7-methyltransferase
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RNA guanine-N7 methyltransferase
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RNA N7-MTase
-
-
REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
methyl group transfer
-
-
-
-
PATHWAY SOURCE
PATHWAYS
-
-
SYSTEMATIC NAME
IUBMB Comments
S-adenosyl-L-methionine:mRNA (guanine-N7)-methyltransferase
The terminal N7-methylguanosine facilitates gene expression in eukaryotic cells and is recognized by cap-binding proteins.
CAS REGISTRY NUMBER
COMMENTARY hide
56941-25-4
-
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
S-adenosyl-L-methionine + a 5'-(5'-triphosphoguanosine)-[mRNA]
S-adenosyl-L-homocysteine + a 5'-(N7-methyl 5'-triphosphoguanosine)-[mRNA]
show the reaction diagram
S-adenosyl-L-methionine + G(5')pppN
S-adenosyl-L-homocysteine + m7G(5')pppG
show the reaction diagram
-
N: G
-
?
S-adenosyl-L-methionine + G(5')pppR-RNA
S-adenosyl-L-homocysteine + m7G(5')pppR-RNA
show the reaction diagram
S-adenosyl-L-methionine + Gppp-RNA
S-adenosyl-L-homocysteine + m7Gppp-RNA
show the reaction diagram
-
-
-
-
?
S-adenosyl-L-methionine + GpppAC3
S-adenosyl-L-homocysteine + m7GpppAC3
show the reaction diagram
-
is efficiently methylated at the guanine-N7 position
-
-
?
S-adenosyl-L-methionine + GpppAC4
S-adenosyl-L-homocysteine + 7mGpppAC4
show the reaction diagram
-
-
-
-
?
additional information
?
-
NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
S-adenosyl-L-methionine + a 5'-(5'-triphosphoguanosine)-[mRNA]
S-adenosyl-L-homocysteine + a 5'-(N7-methyl 5'-triphosphoguanosine)-[mRNA]
show the reaction diagram
S-adenosyl-L-methionine + G(5')pppR-RNA
S-adenosyl-L-homocysteine + m7G(5')pppR-RNA
show the reaction diagram
-
essential for cell viability
-
-
?
additional information
?
-
-
the enzyme is responsible for guanine-N7 methylation of recapped mRNAs
-
-
-
COFACTOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
additional information
-
no requirement of GTP
-
METALS and IONS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Mg2+
-
activation
additional information
-
-
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
(2-[4-[(4-chlorophenyl)(phenyl)methyl]piperazin-1-yl]ethoxy)acetic acid
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-
1,8-dihydroxyanthracen-9(10H)-one
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1-(4-tert-butylphenyl)-N-methyl-N-[(naphthalen-1-yl)methyl]methanamine
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-
1-(diphenylmethyl)-4-methylpiperazine hydrochloride (1:1)
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1-(diphenylmethyl)-4-[(2E)-3-phenylprop-2-en-1-yl]piperazine
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-
1-[(4-chlorophenyl)(phenyl)methyl]-4-methylpiperazine
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-
1-[(4-chlorophenyl)(phenyl)methyl]-4-[(3-methylphenyl)methyl]piperazine
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-
1-[bis(4-fluorophenyl)methyl]-4-[(2,3,4-trimethoxyphenyl)methyl]piperazine
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-
1-[bis(4-fluorophenyl)methyl]-4-[(2Z)-3-phenylprop-2-en-1-yl]piperazine
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-
2-(2-[4-[(4-chlorophenyl)(phenyl)methyl]piperazin-1-yl]ethoxy)ethan-1-ol
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-
3,3',4',5,5',7-hexahaxdroxyflavone
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-
3,3',4',5,7-pentahydroxyflavone
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3,4',5,7-tetrahydroxyflavone
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-
3,8-diamino-5-[3-[diethyl(methyl)azaniumyl]propyl]-6-phenylphenanthridin-5-ium
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-
bis[6-(dimethylamino)-2-[(E)-2-(2,5-dimethyl-1-phenyl-1H-pyrrol-3-yl)ethenyl]-1-methylquinolin-1-ium] 4-[(3-carboxy-2-oxidonaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-carboxylate
-
-
GpppG
-
inhibits binding of the enzyme to RNA
N-(2-[[(4-methoxyphenyl)methyl](pyrimidin-2-yl)amino]ethyl)-N,N-dimethylhexadecan-1-aminium
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-
sinefungin
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98.2% inhibition at 0.05 mM
ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
importin-alpha
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enhances specific binding of the enzyme to RNA, enhances RNA modification activity in vivo and in vitro
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RAM
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activating subunit, required for enzyme interaction with RNA
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RNMT-activating miniprotein
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IC50 VALUE [mM]
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.1022
(2-[4-[(4-chlorophenyl)(phenyl)methyl]piperazin-1-yl]ethoxy)acetic acid
Homo sapiens
-
at pH 8.0 and 30°C
0.00005
1,8-dihydroxyanthracen-9(10H)-one
Homo sapiens
-
at pH 8.0 and 30°C
0.00128
1-(4-tert-butylphenyl)-N-methyl-N-[(naphthalen-1-yl)methyl]methanamine
Homo sapiens
-
at pH 8.0 and 30°C
0.159
1-(diphenylmethyl)-4-methylpiperazine hydrochloride (1:1)
Homo sapiens
-
at pH 8.0 and 30°C
0.0168
1-(diphenylmethyl)-4-[(2E)-3-phenylprop-2-en-1-yl]piperazine
Homo sapiens
-
at pH 8.0 and 30°C
0.2268
1-[(4-chlorophenyl)(phenyl)methyl]-4-methylpiperazine
Homo sapiens
-
at pH 8.0 and 30°C
0.0088
1-[(4-chlorophenyl)(phenyl)methyl]-4-[(3-methylphenyl)methyl]piperazine
Homo sapiens
-
at pH 8.0 and 30°C
0.0137
1-[bis(4-fluorophenyl)methyl]-4-[(2,3,4-trimethoxyphenyl)methyl]piperazine
Homo sapiens
-
at pH 8.0 and 30°C
0.0143
1-[bis(4-fluorophenyl)methyl]-4-[(2Z)-3-phenylprop-2-en-1-yl]piperazine
Homo sapiens
-
at pH 8.0 and 30°C
0.03652
2-(2-[4-[(4-chlorophenyl)(phenyl)methyl]piperazin-1-yl]ethoxy)ethan-1-ol
Homo sapiens
-
at pH 8.0 and 30°C
0.00032
3,3',4',5,5',7-hexahaxdroxyflavone
Homo sapiens
-
at pH 8.0 and 30°C
0.0004
3,3',4',5,7-pentahydroxyflavone
Homo sapiens
-
at pH 8.0 and 30°C
0.01
3,4',5,7-tetrahydroxyflavone
Homo sapiens
-
at pH 8.0 and 30°C
0.0055
3,8-diamino-5-[3-[diethyl(methyl)azaniumyl]propyl]-6-phenylphenanthridin-5-ium
Homo sapiens
-
at pH 8.0 and 30°C
0.0051
bis[6-(dimethylamino)-2-[(E)-2-(2,5-dimethyl-1-phenyl-1H-pyrrol-3-yl)ethenyl]-1-methylquinolin-1-ium] 4-[(3-carboxy-2-oxidonaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-carboxylate
Homo sapiens
-
at pH 8.0 and 30°C
0.001
N-(2-[[(4-methoxyphenyl)methyl](pyrimidin-2-yl)amino]ethyl)-N,N-dimethylhexadecan-1-aminium
Homo sapiens
-
at pH 8.0 and 30°C
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0.000593
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purified enzyme
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
7.2 - 7.8
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-
8
-
assay at
TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
37
-
assay at
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY hide
GeneOntology No.
LITERATURE
SOURCE
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
malfunction
metabolism
the enzyme in complex with RNMT-activating miniprotein catalyzes the formation of a N7-methylated guanosine cap structure on the 5' end of nascent RNA polymerase II transcripts. The mRNA cap protects the primary transcript from exonucleases and recruits cap binding complexes that mediate RNA processing, export and translation
physiological function
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
MCES_HUMAN
476
0
54844
Swiss-Prot
other Location (Reliability: 1)
B7Z8S9_HUMAN
129
0
14973
TrEMBL
other Location (Reliability: 2)
Q05DQ2_HUMAN
225
0
25407
TrEMBL
other Location (Reliability: 1)
A8K946_HUMAN
504
0
57751
TrEMBL
other Location (Reliability: 1)
Q05D80_HUMAN
410
0
47293
TrEMBL
other Location (Reliability: 1)
K7EP06_HUMAN
298
0
34839
TrEMBL
other Location (Reliability: 2)
B7Z3U8_HUMAN
234
0
27561
TrEMBL
other Location (Reliability: 2)
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
56000
-
gel filtration, sucrose density gradient centrifugation
SUBUNIT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
PROTEIN VARIANTS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
additional information
-
construction of knock-down HeLa cells S3, gene inactivation by small interference RNA in HeLa cells results in apoptosis
STORAGE STABILITY
ORGANISM
UNIPROT
LITERATURE
-20°C, Tris buffer, pH 7.5, 50% glycerol
-
-80°C, several months
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4°C, t1/2: less than 36 h
-
PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
by immobilized-metal-affinity chromatography
-
DNA-agarose affinity chromatography
-
CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
complementation of knock-down HeLa S3 cells with enzymatically active N-truncated enzyme comprising residues 120-476 and being located at the nucleus, no complementation of knock-down HeLa S3 cells with enzymatically active N-truncated enzyme comprising residues 144-476 and being loacetd mainly in the cytoplasm, truncated enzymes are expresss in fusion with GFP
-
expressed in HEK-293 cells and Escherichia coli
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expression of 2 different variants, each with and without His-tag, in Escherichia coli, amino acid sequence analysis
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expression of full length enzyme and truncated enzyme in yeast and in HeLa cells, His-tagged, as GFP-fusion protein, or cMyc-tagged
-
into vector pDest14 and transformed into Escherichia coli Rosetta(DE3) cells
-
APPLICATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
medicine
-
the enzyme is a therapeutic target in breast cancer
synthesis
combination of chemical synthesis and enzymatic methylation in order to produce large amounts of RNA oligonucleotides carrying a cap-0 or cap-1. Short RNAs are synthesized on solid support by the phosphoramidite 2'-O-pivaloyloxymethyl chemistry. The cap structure is then coupled by the addition of GDP after phosphorylation of the terminal 5'-OH and activation by imidazole. GpppN-RNAs or GpppN2'-Om-RNAs are purified before the N7-methyl group is added using the human (guanine-N7)-methyl transferase to yield 7mGpppN-RNAs (cap-0) or 7mGpppN29-Om-RNAs (cap-1)
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Ensinger, M.J.; Moss, B.
Modification of the 5 terminus of mRNA by an RNA (guanine-7-)-methyltransferase from HeLa cells
J. Biol. Chem.
251
5283-5291
1976
Homo sapiens
Manually annotated by BRENDA team
Tsukamoto, T.; Shibagaki, Y.; Niikura, Y.; Mizumoto, K.
Cloning and characterization of three human cDNAs encoding mRNA (guanine-7-)-methyltransferase, an mRNA cap methylase
Biochem. Biophys. Res. Commun.
251
27-34
1998
Homo sapiens, Saccharomyces cerevisiae (P32783)
Manually annotated by BRENDA team
Wen, Y.; Shatkin, A.J.
Cap methyltransferase selective binding and methylation of GpppG-RNA are stimulated by importin-alpha
Genes Dev.
14
2944-2949
2000
Homo sapiens
Manually annotated by BRENDA team
Shafer, B.; Chu, C.; Shatkin, A.J.
Human mRNA cap methyltransferase: alternative nuclear localization signal motifs ensure nuclear localization required for viability
Mol. Cell. Biol.
25
2644-2649
2005
Homo sapiens
Manually annotated by BRENDA team
Peyrane, F.; Selisko, B.; Decroly, E.; Vasseur, J.J.; Benarroch, D.; Canard, B.; Alvarez, K.
High-yield production of short GpppA- and 7MeGpppA-capped RNAs and HPLC-monitoring of methyltransfer reactions at the guanine-N7 and adenosine-2O positions
Nucleic Acids Res.
35
e26
2007
Homo sapiens
Manually annotated by BRENDA team
Cowling, V.H.
Enhanced mRNA cap methylation increases cyclin D1 expression and promotes cell transformation
Oncogene
29
930-936
2009
Homo sapiens
Manually annotated by BRENDA team
Thillier, Y.; Decroly, E.; Morvan, F.; Canard, B.; Vasseur, J.J.; Debart, F.
Synthesis of 5' cap-0 and cap-1 RNAs using solid-phase chemistry coupled with enzymatic methylation by human (guanine-N7)-methyl transferase
RNA
18
856-868
2012
Homo sapiens (O43148)
Manually annotated by BRENDA team
Aouadi, W.; Eydoux, C.; Coutard, B.; Martin, B.; Debart, F.; Vasseur, J.J.; Contreras, J.M.; Morice, C.; Querat, G.; Jung, M.L.; Canard, B.; Guillemot, J.C.; Decroly, E.
Toward the identification of viral cap-methyltransferase inhibitors by fluorescence screening assay
Antiviral Res.
144
330-339
2017
Homo sapiens, Severe acute respiratory syndrome-related coronavirus
Manually annotated by BRENDA team
Varshney, D.; Lombardi, O.; Schweikert, G.; Dunn, S.; Suska, O.; Cowling, V.H.
mRNA cap methyltransferase, RNMT-RAM, promotes RNA Pol II-dependent transcription
Cell Rep.
23
1530-1542
2018
Homo sapiens
Manually annotated by BRENDA team
Trotman, J.B.; Giltmier, A.J.; Mukherjee, C.; Schoenberg, D.R.
RNA guanine-7 methyltransferase catalyzes the methylation of cytoplasmically recapped RNAs
Nucleic Acids Res.
45
10726-10739
2017
Homo sapiens
Manually annotated by BRENDA team
Bueren-Calabuig, J.A.; G Bage, M.; Cowling, V.H.; Pisliakov, A.V.
Mechanism of allosteric activation of human mRNA cap methyltransferase (RNMT) by RAM insights from accelerated molecular dynamics simulations
Nucleic Acids Res.
47
8675-8692
2019
Homo sapiens (O43148), Homo sapiens
Manually annotated by BRENDA team
Dunn, S.; Lombardi, O.; Lukoszek, R.; Cowling, V.H.
Oncogenic PIK3CA mutations increase dependency on the mRNA cap methyltransferase, RNMT, in breast cancer cells
Open Biology
9
190052
2019
Homo sapiens
Manually annotated by BRENDA team