SET1B is a component of a histone methyltransferase complex that produces trimethylated histone H3 at Lys4 (Lee et al., 2007 [PubMed 17355966]).[supplied by OMIM, Mar 2008]
Function:
Histone methyltransferase that specifically methylates 'Lys-4' of histone H3, when part of the SET1 histone methyltransferase (HMT) complex, but not if the neighboring 'Lys-9' residue is already methylated. H3 'Lys-4' methylation represents a specific tag for epigenetic transcriptional activation. The non-overalpping localization with SETD1A suggests that SETD1A and SETD1B make non-redundant contributions to the epigenetic control of chromatin structure and gene expression. Specifically tri-methylates 'Lys-4' of histone H3 in vitro.
Subcellular Location:
Nucleus speckle. Chromosome. Localizes to a largely non-overlapping set of euchromatic nuclear speckles with SETD1A, suggesting that SETD1A and SET1B each bind to a unique set of target genes.
Similarity:
Contains 1 post-SET domain.
Contains 1 RRM (RNA recognition motif) domain.
Contains 1 SET domain.
SWISS:
Q9UPS6
Gene ID:
23067
Database links:
Entrez Gene: 23067 Human
Omim: 611055 Human
SwissProt: Q9UPS6 Human
Unigene: 507122 Human
|
|
