|
Subunit: 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, CHD7, DNMT3A, HDAC1, HDAC2, NLK, PPARG, SIN3A, SIN3B, DNMT3B and SUMO2. Interacts with MPHOSPH8. Part of a complex containing at least CDYL, REST, WIZ, SETB1, EHMT1 and EHMT2 Miscellaneous: 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 caution: Sequence=BAA06689.2; Type=Erroneous initiation; Sequence=CAI13325.1; Type=Erroneous gene model prediction; Sequence=CAI13326.1; Type=Erroneous gene model prediction; 1 PDB 3D structure from [IMAGE] and Proteopedia [IMAGE] for SETDB1: 3DLM (3D) [IMAGE]
Tissue specificity: Widely expressed. High expression in testis [IMAGE] Pathway & Disease-focused RT2 Profiler PCR Array including SETDB1: Epigenetic Chromatin Modification Enzymes in human mouse rat Primer Products: [IMAGE] OriGene qPCR primer pairs and template standards f
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 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 + L-lysine-[histone] = S-adenosyl-L-homocysteine + N(6)-methyl-L-lysine-[histone]
Similarity: Belongs to the class V-like SAM-binding methyltransferase superfamily. 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 C
|
