NCBI Accession #
NP_187088.2
NCBI GenBank Nucleotide #
NM_111309.3
NCBI Official Full Name
SET-domain containing protein lysine methyltransferase family protein
NCBI Official Symbol
SUVR4
NCBI Official Synonym Symbols
SDG31; SET DOMAIN PROTEIN 31; T27C4.2; T27C4_2
NCBI Protein Information
SET-domain containing protein lysine methyltransferase family protein
NCBI Summary
Encodes SUVR4, a nucleolar histone methyltransferase with preference for monomethylated H3K9. One of the four closely related Arabidopsis SUVR proteins that belong to the SU(VAR)3-9 subgroup of SET-domain proteins. Proteins containing the evolutionarily conserved SET domain are involved in regulation of eukaryotic gene expression and chromatin structure through their histone lysine methyltransferase (HMTase) activity. SUVR1, SUVR2 and SUVR4 proteins contain a novel domain at their N-terminus, and a SUVR specific region preceding the SET domain.
UniProt Synonym Gene Names
SDG31; SET31; Su(var)3-9-related protein 4
UniProt Protein Name
Histone-lysine N-methyltransferase SUVR4
UniProt Synonym Protein Names
Protein SET DOMAIN GROUP 31; Suppressor of variegation 3-9-related protein 4; Su(var)3-9-related protein 4
UniProt Primary Accession #
Q8W595
UniProt Secondary Accession #
Q3EBC4; Q9M848
UniProt Related Accession #
Q8W595
UniProt Comments
Histone methyltransferase that converts monomethylated 'Lys-9' of histone H3 (H3K9me1) to dimethylated 'Lys-9' (H3K9me2) in the absence of bound ubiquitin, and to trimethylated 'Lys-9' (H3K9me3) in the presence of bound ubiquitin. Acts in a locus-specific manner and contributes to the transcriptional silencing of pseudogenes and transposons. H3 'Lys-9' methylation represents a specific tag for epigenetic transcriptional repression.