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UniProtKB/Swiss-Prot Q15047 (SETB1_HUMAN)
Last modified
November 25, 2008.
Version 96.
History...
Clusters with 100%,
90%,
50% identity |
Documents (7) |
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Names and origin
| Protein names | Recommended name: Histone-lysine N-methyltransferase SETDB1 EC=2.1.1.43 Alternative name(s): SET domain bifurcated 1 ERG-associated protein with SET domain Short name=ESET Histone H3-K9 methyltransferase 4 H3-K9-HMTase 4 Lysine N-methyltransferase 1E | ||||
| Gene names |
| ||||
| Organism | Homo sapiens (Human) | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Protein attributes
| Sequence length | 1291 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Histone methyltransferase that specifically trimethylates 'Lys-9' of histone H3. H3 'Lys-9' trimethylation represents a specific tag for epigenetic transcriptional repression by recruiting HP1 (CBX1, CBX3 and/or CBX5) proteins to methylated histones. Mainly functions in euchromatin regions, thereby playing a central role in the silencing of euchromatic genes. H3 'Lys-9' trimethylation is coordinated with DNA methylation. Probably forms a complex with MBD1 and ATF7IP that represses transcription and couples DNA methylation and histone 'Lys-9' trimethylation. Its activity is dependent on MBD1 and is heritably maintained through DNA replication by being recruited by CAF-1. SETDB1 is targeted to histone H3 by TRIM28/TIF1B, a factor recruited by KRAB zinc-finger proteins. |
| Catalytic activity | S-adenosyl-L-methionine + histone L-lysine = S-adenosyl-L-homocysteine + histone N(6)-methyl-L-lysine. |
| Subunit structure | Interacts with MBD1; interaction is abolished when MBD1 is sumoylated. Interacts with ATF7IP and ATF7IP2; the interaction with ATF7IP is required to stimulate histone methyltransferase activity and facilitate the conversion of dimethylated to trimethylated H3 'Lys-9'. During DNA replication, it is recruited by SETDB1 to form a S phase-specific complex that facilitates methylation of H3 'Lys-9' during replication-coupled chromatin assembly and is at least composed of the CAF-1 subunit CHAF1A, MBD1 and SETDB1. Interacts with ERG, TRIM28/TIF1B, CBX1, CBX5, DNMT3A, HDAC1, HDAC2, SIN3A, SIN3B, DNMT3B and SUMO2. |
| Subcellular location | Nucleus. Note= Associated with non-pericentromeric regions of chromatin. Excluded from nucleoli and islands of condensed chromatin. |
| Tissue specificity | Widely expressed. High expression in testis. |
| Domain | The pre-SET, SET and post-SET domains are all required for methyltransferase activity. The 347-amino-acid insertion in the SET domain has no effect on the catalytic activity. |
| Miscellaneous | Isoform 2 lacks all domains required for histone methyltransferase activity. Highly up-regulated in Huntington disease patients, suggesting that participates in the altered chromatin modulation and transcription dysfunction observed in Huntington disease. Its down-regulation has salubrious effects on patients, suggesting that it may be a promising treatment in Huntington disease patients. |
| Sequence similarities | Belongs to the histone-lysine methyltransferase family. Suvar3-9 subfamily. Contains 1 MBD (methyl-CpG-binding) domain. Contains 1 post-SET domain. Contains 1 pre-SET domain. Contains 1 SET domain. Contains 2 Tudor domains. |
| Sequence caution | The sequence CAI13325.1 differs from that shown. Reason: Erroneous gene model prediction. The sequence CAI13326.1 differs from that shown. Reason: Erroneous gene model prediction. |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| AKT1 | P31749 | 6 | EBI-79691,EBI-296087 | |
| AKT2 | P31751 | 1 | EBI-79691,EBI-296058 | |
| DNMT3A | Q9Y6K1 | 2 | EBI-79691,EBI-923653 | |
| DNMT3B | Q9UBC3-2 | 1 | EBI-79691,EBI-287723 | |
| DNMT3B | Q9UBC3-3 | 1 | EBI-79691,EBI-287726 | |
| ERG | P11308 | 1 | EBI-79691,EBI-79704 |
Alternative products
| This entry describes 3 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q15047-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q15047-2) The sequence of this isoform differs from the canonical sequence as follows: 381-397: DDKRCEWIYRGSTRLEP → VLFFSTILEAEVGGGGT 398-1291: Missing. | ||||||
| Notes: No experimental confirmation available. | ||||||
| Isoform 3 (identifier: Q15047-3) The sequence of this isoform differs from the canonical sequence as follows: 1254-1254: Missing. | ||||||
| Notes: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1291 | 1291 | Histone-lysine N-methyltransferase SETDB1 | PRO_0000186064 | |||||
Regions | |||||||||
| Domain | 257 – 320 | 64 | Tudor 1 | ||||||
| Domain | 347 – 403 | 57 | Tudor 2 | ||||||
| Domain | 594 – 665 | 72 | MBD | ||||||
| Domain | 727 – 800 | 74 | Pre-SET | ||||||
| Domain | 802 – 1270 | 469 | SET | ||||||
| Domain | 1275 – 1291 | 17 | Post-SET | ||||||
| Coiled coil | 18 – 64 | 47 | Potential | ||||||
Amino acid modifications | |||||||||
| Modified residue | 838 | 1 | Phosphothreonine | ||||||
| Modified residue | 1066 | 1 | Phosphoserine | ||||||
| Modified residue | 1179 | 1 | Phosphoserine | ||||||
| Modified residue | 1180 | 1 | Phosphothreonine | ||||||
| Modified residue | 1190 | 1 | Phosphoserine | ||||||
Natural variations | |||||||||
| Alternative sequence | 381 – 397 | 17 | DDKRC…TRLEP → VLFFSTILEAEVGGGGT in isoform 2. | VSP_002217 | |||||
| Alternative sequence | 398 – 1291 | 894 | Missing in isoform 2. | VSP_002218 | |||||
| Alternative sequence | 1254 | 1 | Missing in isoform 3. | VSP_034600 | |||||
| Natural variant | 236 | 1 | N → S: dbSNP rs2271075. | VAR_014284 | |||||
| Natural variant | 506 | 1 | P → S: dbSNP rs17852587. | VAR_031281 | |||||
| Natural variant | 824 | 1 | A → G: dbSNP rs2691551. | VAR_014286 | |||||
| Natural variant | 824 | 1 | A → P: dbSNP rs2814054. | VAR_014285 | |||||
Experimental info | |||||||||
| Mutagenesis | 729 – 731 | 3 | CDC → LDP: Abolishes methyltransferase activity | ||||||
| Mutagenesis | 1224 | 1 | H → K: Abolishes methyltransferase activity | ||||||
| Mutagenesis | 1226 | 1 | C → A: Abolishes methyltransferase activity | ||||||
| Mutagenesis | 1279 | 1 | C → Y: Abolishes methyltransferase activity | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Prediction of the coding sequences of unidentified human genes. II. The coding sequences of 40 new genes (KIAA0041-KIAA0080) deduced by analysis of cDNA clones from human cell line KG-1." Nomura N., Nagase T., Miyajima N., Sazuka T., Tanaka A., Sato S., Seki N., Kawarabayasi Y., Ishikawa K., Tabata S. DNA Res. 1:223-229(1994) [PubMed: 7584044] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1). Tissue: Bone marrow. |
| [2] | "The DNA sequence and biological annotation of human chromosome 1." Gregory S.G., Barlow K.F., McLay K.E., Kaul R., Swarbreck D., Dunham A., Scott C.E., Howe K.L., Woodfine K., Spencer C.C.A., Jones M.C., Gillson C., Searle S., Zhou Y., Kokocinski F., McDonald L., Evans R., Phillips K. Bentley D.R.Nature 441:315-321(2006) [PubMed: 16710414] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [3] | Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (DEC-2006) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1; 2 AND 3), VARIANT SER-506. Tissue: Muscle and Uterus. |
| [5] | "SETDB1: a novel KAP-1-associated histone H3, lysine 9-specific methyltransferase that contributes to HP1-mediated silencing of euchromatic genes by KRAB zinc-finger proteins." Schultz D.C., Ayyanathan K., Negorev D., Maul G.G., Rauscher F.J. III Genes Dev. 16:919-932(2002) [PubMed: 11959841] [Abstract] Cited for: CHARACTERIZATION, MUTAGENESIS OF 729-CYS--CYS-731; HIS-1224; CYS-1226 AND CYS-1279, INTERACTION WITH TRIM28. |
| [6] | "Regulated recruitment of HP1 to a euchromatic gene induces mitotically heritable, epigenetic gene silencing: a mammalian cell culture model of gene variegation." Ayyanathan K., Lechner M.S., Bell P., Maul G.G., Schultz D.C., Yamada Y., Tanaka K., Torigoe K., Rauscher F.J. III Genes Dev. 17:1855-1869(2003) [PubMed: 12869583] [Abstract] Cited for: FUNCTION. |
| [7] | "mAM facilitates conversion by ESET of dimethyl to trimethyl lysine 9 of histone H3 to cause transcriptional repression." Wang H., An W., Cao R., Xia L., Erdjument-Bromage H., Chatton B., Tempst P., Roeder R.G., Zhang Y. Mol. Cell 12:475-487(2003) [PubMed: 14536086] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY, FUNCTION, INTERACTION WITH ATF7IP. |
| [8] | "Methyl-CpG binding protein MBD1 couples histone H3 methylation at lysine 9 by SETDB1 to DNA replication and chromatin assembly." Sarraf S.A., Stancheva I. Mol. Cell 15:595-605(2004) [PubMed: 15327775] [Abstract] Cited for: FUNCTION, INTERACTION WITH MBD1 AND CHAF1A. |
| [9] | "In vivo HP1 targeting causes large-scale chromatin condensation and enhanced histone lysine methylation." Verschure P.J., van der Kraan I., de Leeuw W., van der Vlag J., Carpenter A.E., Belmont A.S., van Driel R. Mol. Cell. Biol. 25:4552-4564(2005) [PubMed: 15899859] [Abstract] Cited for: INTERACTION WITH CBX1 AND CBX5. |
| [10] | "Global phosphoproteome analysis on human HepG2 hepatocytes using reversed-phase diagonal LC." Gevaert K., Staes A., Van Damme J., De Groot S., Hugelier K., Demol H., Martens L., Goethals M., Vandekerckhove J. Proteomics 5:3589-3599(2005) [PubMed: 16097034] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT THR-838, MASS SPECTROMETRY. Tissue: Hepatocyte. |
| [11] | "Regulation of MBD1-mediated transcriptional repression by SUMO and PIAS proteins." Lyst M.J., Nan X., Stancheva I. EMBO J. 25:5317-5328(2006) [PubMed: 17066076] [Abstract] Cited for: INTERACTION WITH MBD1. |
| [12] | "Transcriptional repression and heterochromatin formation by MBD1 and MCAF/AM family proteins." Ichimura T., Watanabe S., Sakamoto Y., Aoto T., Fujita N., Nakao M. J. Biol. Chem. 280:13928-13935(2005) [PubMed: 15691849] [Abstract] Cited for: INTERACTION WITH ATF7IP AND ATF7IP2. |
| [13] | "The histone methyltransferase SETDB1 and the DNA methyltransferase DNMT3A interact directly and localize to promoters silenced in cancer cells." Li H., Rauch T., Chen Z.-X., Szabo P.E., Riggs A.D., Pfeifer G.P. J. Biol. Chem. 281:19489-19500(2006) [PubMed: 16682412] [Abstract] Cited for: INTERACTION WITH DNMT3A AND DNMT3B. |
| [14] | "NXP-2 association with SUMO-2 depends on lysines required for transcriptional repression." Rosendorff A., Sakakibara S., Lu S., Kieff E., Xuan Y., DiBacco A., Shi Y., Shi Y., Gill G. Proc. Natl. Acad. Sci. U.S.A. 103:5308-5313(2006) [PubMed: 16567619] [Abstract] Cited for: INTERACTION WITH SUMO2. |
| [15] | "ESET/SETDB1 gene expression and histone H3 (K9) trimethylation in Huntington's disease." Ryu H., Lee J., Hagerty S.W., Soh B.Y., McAlpin S.E., Cormier K.A., Smith K.M., Ferrante R.J. Proc. Natl. Acad. Sci. U.S.A. 103:19176-19181(2006) [PubMed: 17142323] [Abstract] Cited for: EXPRESSION IN HUNTINGTON DISEASE. |
| [16] | "Global proteomic profiling of phosphopeptides using electron transfer dissociation tandem mass spectrometry." Molina H., Horn D.M., Tang N., Mathivanan S., Pandey A. Proc. Natl. Acad. Sci. U.S.A. 104:2199-2204(2007) [PubMed: 17287340] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-1179; THR-1180 AND SER-1190, MASS SPECTROMETRY. |
| [17] | "Combining protein-based IMAC, peptide-based IMAC, and MudPIT for efficient phosphoproteomic analysis." Cantin G.T., Yi W., Lu B., Park S.K., Xu T., Lee J.-D., Yates J.R. III J. Proteome Res. 7:1346-1351(2008) [PubMed: 18220336] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-1066, MASS SPECTROMETRY. |
| [18] | "A quantitative atlas of mitotic phosphorylation." Dephoure N., Zhou C., Villen J., Beausoleil S.A., Bakalarski C.E., Elledge S.J., Gygi S.P. Proc. Natl. Acad. Sci. U.S.A. 105:10762-10767(2008) [PubMed: 18669648] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-1066, MASS SPECTROMETRY. |
Cross-references
Sequence databases | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D31891 mRNA. Translation: BAA06689.2. Different initiation. AL590133 Genomic DNA. Translation: CAI13325.1. Sequence problems. AL590133 Genomic DNA. Translation: CAI13326.1. Sequence problems. AL590133 Genomic DNA. Translation: CAI13327.1. AL590133 Genomic DNA. Translation: CAI13328.1. CH471121 Genomic DNA. Translation: EAW53506.1. BC009362 mRNA. Translation: AAH09362.1. BC028671 mRNA. Translation: AAH28671.1. | |||||||||||||
| RefSeq | NP_036564.2. | ||||||||||||
| UniGene | Hs.643565 | ||||||||||||
3D structure databases | |||||||||||||
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| ModBase | Search... | ||||||||||||

Clusters with