Q9EQQ0 (SUV92_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
April 3, 2013.
Version 114.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Histone-lysine N-methyltransferase SUV39H2 EC=2.1.1.43 Alternative name(s): Histone H3-K9 methyltransferase 2 Short name=H3-K9-HMTase 2 Suppressor of variegation 3-9 homolog 2 Short name=Su(var)3-9 homolog 2 | ||
| Gene names |
| ||
| Organism | Mus musculus (Mouse) [Reference proteome] | ||
| Taxonomic identifier | 10090 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus › Mus![]() |
Protein attributes
| Sequence length | 477 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Histone methyltransferase that specifically trimethylates 'Lys-9' of histone H3 using monomethylated H3 'Lys-9' as substrate. 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 heterochromatin regions, thereby playing a central role in the establishment of constitutive heterochromatin at pericentric and telomere regions. H3 'Lys-9' trimethylation is also required to direct DNA methylation at pericentric repeats. SUV39H1 is targeted to histone H3 via its interaction with RB1 and is involved in many processes, such as cell cycle regulation, transcriptional repression and regulation of telomere length. May participate in regulation of higher-order chromatin organization during spermatogenesis. Ref.4 Ref.5 Ref.6 Ref.7 |
| Catalytic activity | S-adenosyl-L-methionine + L-lysine-[histone] = S-adenosyl-L-homocysteine + N(6)-methyl-L-lysine-[histone]. |
| Subunit structure | Interacts with SMAD5 By similarity. |
| Subcellular location | Nucleus. Chromosome. Chromosome › centromere. Note: Associates with centromeric constitutive heterochromatin during most stages of spermato- and spermiogenesis. Predominantly accumulates at the sex chromosomes present at the XY body. |
| Tissue specificity | Testis specific; predominant expression in type B spermatogonia and preleptotene spermatocytes. |
| Developmental stage | Strong expression in early embryos with a peak at E10.5. Expression is down-regulated at E17.5, and is nearly absent during postnatal development. In adult testes, prominent expression in late but not early spermatocytes. |
| Domain | Although the SET domain contains the active site of enzymatic activity, both pre-SET and post-SET domains are required for methyltransferase activity. The SET domain also participates to stable binding to heterochromatin By similarity. |
| Disruption phenotype | Mice lacking Suv39h1 and Suv39h2 display severely impaired viability and chromosomal instabilities that are associated with an increased tumor risk and perturbed chromosome interactions during male meiosis. They also show a higher level of histone H3 with phosphorylated 'Ser-10' and a reduced number of cells in G1 phase and an increased portion of cells with aberrant nuclear morphologies. Ref.4 |
| Sequence similarities | Belongs to the histone-lysine methyltransferase family. Suvar3-9 subfamily. Contains 1 chromo domain. Contains 1 post-SET domain. Contains 1 pre-SET domain. Contains 1 SET domain. |
| Sequence caution | The sequence AAF73152.1 differs from that shown. Reason: Erroneous gene model prediction. |
Ontologies
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 477 | 477 | Histone-lysine N-methyltransferase SUV39H2 | PRO_0000186060 | |||||
Regions | |||||||||
| Domain | 118 – 176 | 59 | Chromo | ||||||
| Domain | 256 – 314 | 59 | Pre-SET | ||||||
| Domain | 316 – 444 | 129 | SET | ||||||
| Domain | 461 – 477 | 17 | Post-SET | ||||||
Amino acid modifications | |||||||||
| Modified residue | 448 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 451 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 455 | 1 | Phosphoserine By similarity | ||||||
Experimental info | |||||||||
| Sequence conflict | 3 | 1 | T → A in BAC38921. Ref.2 | ||||||
| Sequence conflict | 131 | 1 | Missing in AAF73152. Ref.1 | ||||||
| Sequence conflict | 323 | 1 | K → R in BAB29948. Ref.2 | ||||||
| Sequence conflict | 323 | 1 | K → R in BAC38921. Ref.2 | ||||||
| Sequence conflict | 325 | 1 | S → N in AAF73152. Ref.1 | ||||||
Sequences
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References
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AF149204 Genomic DNA. Translation: AAF73152.1. Sequence problems. AF149205 mRNA. Translation: AAG09134.1. AK015728 mRNA. Translation: BAB29948.1. AK083457 mRNA. Translation: BAC38921.1. AL732620 Genomic DNA. Translation: CAM16043.1. |
| IPI | IPI00111417. |
| RefSeq | NP_073561.2. NM_022724.4. |
| UniGene | Mm.128273. Mm.23483. |
3D structure databases | |
| ProteinModelPortal | Q9EQQ0. |
| SMR | Q9EQQ0. Positions 119-167, 191-477. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q9EQQ0. 1 interaction. |
PTM databases | |
| PhosphoSite | Q9EQQ0. |
Proteomic databases | |
| PRIDE | Q9EQQ0. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000027956; ENSMUSP00000027956; ENSMUSG00000026646. |
| GeneID | 64707. |
| KEGG | mmu:64707. |
| UCSC | uc008ied.2. mouse. |
Organism-specific databases | |
| CTD | 79723. |
| MGI | MGI:1890396. Suv39h2. |
Phylogenomic databases | |
| eggNOG | COG2940. |
| GeneTree | ENSGT00690000101898. |
| HOGENOM | HOG000231244. |
| HOVERGEN | HBG055621. |
| InParanoid | Q9EQQ0. |
| KO | K11419. |
| OrthoDB | EOG4RFKSJ. |
Gene expression databases | |
| ArrayExpress | Q9EQQ0. |
| Bgee | Q9EQQ0. |
| Genevestigator | Q9EQQ0. |
| GermOnline | ENSMUSG00000026646. Mus musculus. |
Family and domain databases | |
| InterPro | IPR023780. Chromo_domain. IPR000953. Chromo_domain/shadow. IPR016197. Chromodomain-like. IPR023779. Chromodomain_CS. IPR011381. Histone_H3-K9_MeTrfase. IPR003616. Post-SET_dom. IPR007728. Pre-SET_dom. IPR001214. SET_dom. [Graphical view] |
| Pfam | PF00385. Chromo. 1 hit. PF05033. Pre-SET. 1 hit. PF00856. SET. 1 hit. [Graphical view] |
| PIRSF | PIRSF009343. SUV39_SET. 1 hit. |
| SMART | SM00298. CHROMO. 1 hit. SM00508. PostSET. 1 hit. SM00317. SET. 1 hit. [Graphical view] |
| SUPFAM | SSF54160. Chromodomain-like. 1 hit. |
| PROSITE | PS00598. CHROMO_1. 1 hit. PS50013. CHROMO_2. 1 hit. PS50868. POST_SET. 1 hit. PS50867. PRE_SET. 1 hit. PS50280. SET. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| NextBio | 320183. |
| SOURCE | Search... |
Entry information
| Entry name | SUV92_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q9EQQ0 Secondary accession number(s): Q8BNK2, Q9CUK3, Q9JLP7 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
