Histone-lysine N-methyltransferase 2B - O08550 (KMT2B_MOUSE)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

 
Function
Histone methyltransferase that methylates 'Lys-4' of histone H3 (By similarity). H3 'Lys-4' methylation represents a specific tag for epigenetic transcriptional activation (By similarity). Plays a central role in beta-globin locus transcription regulation by being recruited by NFE2 (By similarity). Plays an important role in controlling bulk H3K4me during oocyte growth and preimplantation development (PubMed:20808952). Required during the transcriptionally active period of oocyte growth for the establishment and/or maintenance of bulk H3K4 trimethylation (H3K4me3), global transcriptional silencing that preceeds resumption of meiosis, oocyte survival and normal zygotic genome activation (PubMed:20808952). UniProt
Catalytic Activity
L-lysyl4-[histone H3] + 3 S-adenosyl-L-methionine = 3 H+ + N6,N6,N6-trimethyl-L-lysyl4-[histone H3] + 3 S-adenosyl-L-homocysteine UniProt
Pathway Maps
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Subunit Structure
Component of the menin-associated histone methyltransferase complex, at least composed of KMT2B/MLL4, ASH2L, RBBP5, WDR5, DPY30, MEN1; the complex interacts with POLR2A and POLR2B via MEN1 (By similarity). Interacts with NFE2 (By similarity). Interacts with KDM6B (By similarity). Interacts (via WIN motif) with WDR5 (By similarity). Interacts (via MBM motif) with MEN1 (By similarity). UniProt
Domain
The CXXC zinc finger mediates binding to DNA containing unmethylated cytidine-phosphate-guanosine (CpG) dinucleotides. UniProt
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Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in purple originates from Phosphosite  .
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
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  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
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Validation Track

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Data in red indicates combined ranges of Homology Models from the SWISS-MODEL Repository  
The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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