NCBI Accession #
NP_001318341.1
NCBI GenBank Nucleotide #
NM_001336444.1
NCBI Official Full Name
SU(VAR)3-9 homolog 2
NCBI Official Symbol
SUVH2
NCBI Official Synonym Symbols
ATSUVH2; F4P9.6; F4P9_6; SDG3; SET DOMAIN-CONTAINING PROTEIN 3; SU(VAR)3-9 homolog 2
NCBI Protein Information
SU(VAR)3-9 homolog 2
NCBI Summary
Encodes a SU(VAR)3-9 homolog, a SET domain protein. Known SET domain proteins are involved in epigenetic control of gene expression and act as histone methyltransferases. There are 10 SUVH genes in Arabidopsis and members of this subfamily of the SET proteins have an additional conserved SRA domain. Gene is expressed in rosettes, stems, floral buds, and flowers by RT-PCR.
UniProt Synonym Gene Names
SDG3; SET3; H3-K9-HMTase 2; Su(var)3-9 homolog protein 2
UniProt Protein Name
Histone-lysine N-methyltransferase family member SUVH2
UniProt Synonym Protein Names
Cytosine-HMTase 2; H3-K27-HMTase 2; H4-K20-HMTase 2; Histone H3-K9 methyltransferase 2; H3-K9-HMTase 2; Protein SET DOMAIN GROUP 3; Suppressor of variegation 3-9 homolog protein 2; Su(var)3-9 homolog protein 2
UniProt Primary Accession #
O22781
UniProt Related Accession #
O22781
UniProt Comments
Histone methyltransferase family member that plays a central role in gene silencing (PubMed:15775980, PubMed:16384625, PubMed:19043555, PubMed:24463519, PubMed:27171427). Together with MORC6 and SUVH9, regulates the silencing of some transposable elements (TEs) (PubMed:27171427). According to PubMed:15775980, it is required for normal methylation of 'Lys-9' and 'Lys-27' of histone H3, 'Lys-20' of H4, and cytosine, but PubMed:19043555 see no significant effect on histone methylation when the gene is mutated. According to PubMed:19043555, the protein does not bind S-adenosyl-L-methionine and lacks methyltransferase activity. Instead, it may function downstream of DRM2 in RNA-directed DNA methylation, binding to methylated DNA and recruiting DNA-directed RNA polymerase V to chromatin (PubMed:24463519, PubMed:27171427).