2igq: Difference between revisions
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{{STRUCTURE_2igq| PDB=2igq | SCENE= }} | {{STRUCTURE_2igq| PDB=2igq | SCENE= }} | ||
===Human euchromatic histone methyltransferase 1=== | |||
{{ABSTRACT_PUBMED_20084102}} | |||
== | ==Disease== | ||
[[http://www.uniprot.org/uniprot/EHMT1_HUMAN EHMT1_HUMAN]] Defects in EHMT1 are the cause of chromosome 9q subtelomeric deletion syndrome (9q- syndrome) [MIM:[http://omim.org/entry/610253 610253]]. Common features seen in these patients are severe mental retardation, hypotonia, brachy(micro)cephaly, epileptic seizures, flat face with hypertelorism, synophrys, anteverted nares, cupid bow or tented upper lip, everted lower lip, prognathism, macroglossia, conotruncal heart defects, and behavioral problems. | |||
==Function== | |||
[[http://www.uniprot.org/uniprot/EHMT1_HUMAN EHMT1_HUMAN]] Histone methyltransferase that specifically mono- and dimethylates 'Lys-9' of histone H3 (H3K9me1 and H3K9me2, respectively) in euchromatin. H3K9me represents a specific tag for epigenetic transcriptional repression by recruiting HP1 proteins to methylated histones. Also weakly methylates 'Lys-27' of histone H3 (H3K27me). Also required for DNA methylation, the histone methyltransferase activity is not required for DNA methylation, suggesting that these 2 activities function independently. Probably targeted to histone H3 by different DNA-binding proteins like E2F6, MGA, MAX and/or DP1. During G0 phase, it probably contributes to silencing of MYC- and E2F-responsive genes, suggesting a role in G0/G1 transition in cell cycle. In addition to the histone methyltransferase activity, also methylates non-histone proteins: mediates dimethylation of 'Lys-373' of p53/TP53.<ref>PMID:12004135</ref><ref>PMID:20118233</ref> | |||
==About this Structure== | ==About this Structure== | ||
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==Reference== | ==Reference== | ||
<ref group="xtra">PMID:020084102</ref><references group="xtra"/> | <ref group="xtra">PMID:020084102</ref><references group="xtra"/><references/> | ||
[[Category: Histone-lysine N-methyltransferase]] | [[Category: Histone-lysine N-methyltransferase]] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
Revision as of 03:22, 25 March 2013
Human euchromatic histone methyltransferase 1Human euchromatic histone methyltransferase 1
Template:ABSTRACT PUBMED 20084102
DiseaseDisease
[EHMT1_HUMAN] Defects in EHMT1 are the cause of chromosome 9q subtelomeric deletion syndrome (9q- syndrome) [MIM:610253]. Common features seen in these patients are severe mental retardation, hypotonia, brachy(micro)cephaly, epileptic seizures, flat face with hypertelorism, synophrys, anteverted nares, cupid bow or tented upper lip, everted lower lip, prognathism, macroglossia, conotruncal heart defects, and behavioral problems.
FunctionFunction
[EHMT1_HUMAN] Histone methyltransferase that specifically mono- and dimethylates 'Lys-9' of histone H3 (H3K9me1 and H3K9me2, respectively) in euchromatin. H3K9me represents a specific tag for epigenetic transcriptional repression by recruiting HP1 proteins to methylated histones. Also weakly methylates 'Lys-27' of histone H3 (H3K27me). Also required for DNA methylation, the histone methyltransferase activity is not required for DNA methylation, suggesting that these 2 activities function independently. Probably targeted to histone H3 by different DNA-binding proteins like E2F6, MGA, MAX and/or DP1. During G0 phase, it probably contributes to silencing of MYC- and E2F-responsive genes, suggesting a role in G0/G1 transition in cell cycle. In addition to the histone methyltransferase activity, also methylates non-histone proteins: mediates dimethylation of 'Lys-373' of p53/TP53.[1][2]
About this StructureAbout this Structure
2igq is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.
See AlsoSee Also
ReferenceReference
- ↑ Wu H, Min J, Lunin VV, Antoshenko T, Dombrovski L, Zeng H, Allali-Hassani A, Campagna-Slater V, Vedadi M, Arrowsmith CH, Plotnikov AN, Schapira M. Structural biology of human H3K9 methyltransferases. PLoS One. 2010 Jan 11;5(1):e8570. PMID:20084102 doi:10.1371/journal.pone.0008570
- ↑ Ogawa H, Ishiguro K, Gaubatz S, Livingston DM, Nakatani Y. A complex with chromatin modifiers that occupies E2F- and Myc-responsive genes in G0 cells. Science. 2002 May 10;296(5570):1132-6. PMID:12004135 doi:10.1126/science.1069861
- ↑ Huang J, Dorsey J, Chuikov S, Zhang X, Jenuwein T, Reinberg D, Berger SL. G9A and GLP methylate lysine 373 in the tumor suppressor p53. J Biol Chem. 2010 Jan 29. PMID:20118233 doi:M109.062588
Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)
OCA- Histone-lysine N-methyltransferase
- Homo sapiens
- Antoshenko, T.
- Arrowsmith, C H.
- Bochkarev, A.
- Edwards, A M.
- Loppnau, P.
- Min, J.
- Plotnikov, A N.
- SGC, Structural Genomics Consortium.
- Sundstrom, M.
- Weigelt, J.
- Wu, H.
- Euchromatic histone methyltransferase 1
- Sgc
- Structural genomic
- Structural genomics consortium
- Transferase