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Information on EC 2.1.1.356 - [histone H3]-lysine27 N-trimethyltransferase and Organism(s) Homo sapiens and UniProt Accession Q96KQ7

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IUBMB Comments
This entry describes enzymes that successively methylate the L-lysine27 residue of histone H3 (H3K27), ultimately generating a trimethylated form. These modifications influence the binding of chromatin-associated proteins. The methylation of lysine27 leads to transcriptional repression of the affected target genes. The enzyme associates with other proteins to form a complex that is essential for activity. The enzyme can also methylate some non-histone proteins. cf. EC 2.1.1.369, [histone H3]-lysine27 N-methyltransferase and EC 2.1.1.371, [histone H3]-lysine27 N-dimethyltransferase.
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Homo sapiens
UNIPROT: Q96KQ7
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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
polycomb repressive complex 2, re-iibp, histone h3 lysine 27 methyltransferase, set domain histone lysine methyltransferase, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
lysine-preferring HMTase
-
EZH1
-
-
-
-
histone lysine methyltransferase
-
-
HMTase
-
-
interleukin-5 response element II binding protein
-
-
KMT6A
-
-
-
-
KMT6B
-
-
-
-
RE-IIBP
-
-
WHSC1/MMSET isoform RE-IIBP
-
-
PATHWAY SOURCE
PATHWAYS
SYSTEMATIC NAME
IUBMB Comments
S-adenosyl-L-methionine:[histone H3]-L-lysine27 N6-methyltransferase
This entry describes enzymes that successively methylate the L-lysine27 residue of histone H3 (H3K27), ultimately generating a trimethylated form. These modifications influence the binding of chromatin-associated proteins. The methylation of lysine27 leads to transcriptional repression of the affected target genes. The enzyme associates with other proteins to form a complex that is essential for activity. The enzyme can also methylate some non-histone proteins. cf. EC 2.1.1.369, [histone H3]-lysine27 N-methyltransferase and EC 2.1.1.371, [histone H3]-lysine27 N-dimethyltransferase.
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
3 S-adenosyl-L-methionine + a [histone H3]-L-lysine27
3 S-adenosyl-L-homocysteine + a [histone H3]-N6,N6,N6-trimethyl-L-lysine27
show the reaction diagram
overall reaction
-
-
?
S-adenosyl-L-methionine + a [histone H3]-L-lysine27
S-adenosyl-L-homocysteine + a [histone H3]-N6-methyl-L-lysine27
show the reaction diagram
-
-
-
?
S-adenosyl-L-methionine + a [histone H3]-N6,N6-dimethyl-L-lysine27
S-adenosyl-L-homocysteine + a [histone H3]-N6,N6,N6-trimethyl-L-lysine27
show the reaction diagram
-
-
-
?
S-adenosyl-L-methionine + a [histone H3]-N6-methyl-L-lysine27
S-adenosyl-L-homocysteine + a [histone H3]-N6,N6-dimethyl-L-lysine27
show the reaction diagram
-
-
-
?
3 S-adenosyl-L-methionine + a [histone H3]-L-lysine27
3 S-adenosyl-L-homocysteine + a [histone H3]-N6,N6,N6-trimethyl-L-lysine27
show the reaction diagram
overall reaction
-
-
?
S-adenosyl-L-methionine + a [histone H3]-L-lysine27
S-adenosyl-L-homocysteine + a [histone H3]-N6-methyl-L-lysine27
show the reaction diagram
S-adenosyl-L-methionine + a [histone H3]-N6,N6-dimethyl-L-lysine27
S-adenosyl-L-homocysteine + a [histone H3]-N6,N6,N6-trimethyl-L-lysine27
show the reaction diagram
-
-
-
?
S-adenosyl-L-methionine + a [histone H3]-N6-methyl-L-lysine27
S-adenosyl-L-homocysteine + a [histone H3]-N6,N6-dimethyl-L-lysine27
show the reaction diagram
-
-
-
?
S-adenosyl-L-methionine + histone H3(K27)
?
show the reaction diagram
-
RE-IIBP selectively transfers methyl groups to K27 of histone H3
-
-
?
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
3 S-adenosyl-L-methionine + a [histone H3]-L-lysine27
3 S-adenosyl-L-homocysteine + a [histone H3]-N6,N6,N6-trimethyl-L-lysine27
show the reaction diagram
overall reaction
-
-
?
S-adenosyl-L-methionine + a [histone H3]-L-lysine27
S-adenosyl-L-homocysteine + a [histone H3]-N6-methyl-L-lysine27
show the reaction diagram
-
-
-
?
S-adenosyl-L-methionine + a [histone H3]-N6,N6-dimethyl-L-lysine27
S-adenosyl-L-homocysteine + a [histone H3]-N6,N6,N6-trimethyl-L-lysine27
show the reaction diagram
-
-
-
?
S-adenosyl-L-methionine + a [histone H3]-N6-methyl-L-lysine27
S-adenosyl-L-homocysteine + a [histone H3]-N6,N6-dimethyl-L-lysine27
show the reaction diagram
-
-
-
?
3 S-adenosyl-L-methionine + a [histone H3]-L-lysine27
3 S-adenosyl-L-homocysteine + a [histone H3]-N6,N6,N6-trimethyl-L-lysine27
show the reaction diagram
overall reaction
-
-
?
S-adenosyl-L-methionine + a [histone H3]-L-lysine27
S-adenosyl-L-homocysteine + a [histone H3]-N6-methyl-L-lysine27
show the reaction diagram
S-adenosyl-L-methionine + a [histone H3]-N6,N6-dimethyl-L-lysine27
S-adenosyl-L-homocysteine + a [histone H3]-N6,N6,N6-trimethyl-L-lysine27
show the reaction diagram
-
-
-
?
S-adenosyl-L-methionine + a [histone H3]-N6-methyl-L-lysine27
S-adenosyl-L-homocysteine + a [histone H3]-N6,N6-dimethyl-L-lysine27
show the reaction diagram
-
-
-
?
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
-
UniProt
Manually annotated by BRENDA team
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
SOURCE
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY hide
GeneOntology No.
LITERATURE
SOURCE
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
physiological function
the enzyme contributes to the regulation of chromatin structure
physiological function
-
RE-IIBP represses basal transcription via histone deacetylase recruitment, which may be mediated by histone H3(K27) methylation, knockdown of RE-IIBP reduces histone H3-K27 methylation and histone deacetylase occupancy around the interleukin-5 promoter
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
EHMT2_HUMAN
1210
0
132370
Swiss-Prot
Secretory Pathway (Reliability: 5)
CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
molecular modelling of the open-and-closed conformation of the catalytic domain
PROTEIN VARIANTS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
A677G
the mutant cell line reveals aberrantly elevated trimethylated [histone H3]-L-lysine27 and decreased monomethylated and dimethylated [histone H3]-L-lysine27 as compared to the wild type. The mutant enzyme demonstrates nearly equal efficiency for all three substrates (unmethylated H3K27:monomethylated H3K27:dimethylated H3K27 kcat/Km ratio is 1.1:0.6:1)
C483A
-
no activity, the SET domain cysteine 483 is a critical residue for the histone methyltransferase activity of RE-IIBP
R477A
-
no activity, the SET domain 477 is a critical residue for the histone methyltransferase activity of RE-IIBP
PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
expressed in Escherichia coli BL21 codon-plus RIL cells
development of a modified Escherichia coli expression system
expression of the C-terminal domain in Escherichia coli
EXPRESSION
ORGANISM
UNIPROT
LITERATURE
RE-IIBP expression and histone methylation are increased in leukemia patients
-
APPLICATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
synthesis
expression of NSDs via tagging with a human influenza hemagglutinin tag greatly improves the quality of the recombinant NSDs, resulting in more than 95% pure, stable, and active NSD-hemagglutinins, with an increase in production yield up to 22.4fold and up to 6.25 mg/l from LB Escherichia coli culture, and without further purification
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Kim, J.Y.; Kee, H.J.; Choe, N.W.; Kim, S.M.; Eom, G.H.; Baek, H.J.; Kook, H.; Kook, H.; Seo, S.B.
Multiple-myeloma-related WHSC1/MMSET isoform RE-IIBP is a histone methyltransferase with transcriptional repression activity
Mol. Cell. Biol.
28
2023-2034
2008
Homo sapiens
Manually annotated by BRENDA team
Tachibana, M.; Sugimoto, K.; Fukushima, T.; Shinkai, Y.
Set domain-containing protein, G9a, is a novel lysine-preferring mammalian histone methyltransferase with hyperactivity and specific selectivity to lysines 9 and 27 of histone H3
J. Biol. Chem.
276
25309-25317
2001
Homo sapiens (Q96KQ7)
Manually annotated by BRENDA team
McCabe, M.T.; Graves, A.P.; Ganji, G.; Diaz, E.; Halsey, W.S.; Jiang, Y.; Smitheman, K.N.; Ott, H.M.; Pappalardi, M.B.; Allen, K.E.; Chen, S.B.; Della Pietra, A.; Dul, E.; Hughes, A.M.; Gilbert, S.A.; Thrall, S.H.; Tummino, P.J.; Kruger, R.G.; Brandt, M.; Schwartz, B.; Creasy, C.L.
Mutation of A677 in histone methyltransferase EZH2 in human B-cell lymphoma promotes hypertrimethylation of histone H3 on lysine 27 (H3K27)
Proc. Natl. Acad. Sci. USA
109
2989-2994
2012
Homo sapiens (Q15910), Homo sapiens
Manually annotated by BRENDA team
Cao, R.; Wang, L.; Wang, H.; Xia, L.; Erdjument-Bromage, H.; Tempst, P.; Jones, R.; Zhang, Y.
Role of histone H3 lysine 27 methylation in polycomb-group silencing
Science
298
1039-1043
2002
Homo sapiens (Q15910)
Manually annotated by BRENDA team
Morishita, M.; Mevius, D.; Di Luccio, E.
In vitro histone lysine methylation by NSD1, NSD2/MMSET/WHSC1 and NSD3/WHSC1L
BMC Struct. Biol.
14
25
2014
Homo sapiens (O96028), Homo sapiens (Q9BZ95)
Manually annotated by BRENDA team
Shen, Y.; Morishita, M.; di Luccio, E.
High yield recombinant expression and purification of oncogenic NSD1, NSD2, and NSD3 with human influenza hemagglutinin tag
Protein Expr. Purif.
166
105506
2020
Homo sapiens (O96028)
Manually annotated by BRENDA team