Inactive histone-lysine N-methyltransferase 2E - Q8IZD2 (KMT2E_HUMAN)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for Q8IZD2: 3
 
Function
Associates with chromatin regions downstream of transcriptional start sites of active genes and thus regulates gene transcription (PubMed:23629655, PubMed:24130829, PubMed:23798402). Chromatin interaction is mediated via the binding to tri-methylated histone H3 at 'Lys-4' (H3K4me3) (PubMed:24130829, PubMed:23798402). Key regulator of hematopoiesis involved in terminal myeloid differentiation and in the regulation of hematopoietic stem cell (HSCs) self-renewal by a mechanism that involves DNA methylation (By similarity). Also acts as an important cell cycle regulator, participating in cell cycle regulatory network machinery at multiple cell cycle stages including G1/S transition, S phase progression and mitotic entry (PubMed:14718661, PubMed:18573682, PubMed:19264965, PubMed:23629655). Recruited to E2F1 responsive promoters by HCFC1 where it stimulates tri-methylation of histone H3 at 'Lys-4' and transcriptional activation and thereby facilitates G1 to S phase transition (PubMed:23629655). During myoblast differentiation, required to suppress inappropriate expression of S-phase-promoting genes and maintain expression of determination genes in quiescent cells. UniProt
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Subunit Structure
Component of a complex composed of KMT2E (isoform 3), OGT and USP7; the complex stabilizes KMT2E, preventing KMT2E ubiquitination and proteosomal-mediated degradation (PubMed:26678539). Isoform 3 interacts (via N-terminus) with OGT (via TRP repeats) (PubMed:26678539, PubMed:23629655). Isoform 3 interacts with deubiquitinating enzyme USP7 (via MATH domain) (PubMed:26678539). Isoform 3 interacts (via HBM motif) with HCFC1 (via Kelch domain) (PubMed:23629655). Isoform 3 interacts with E2F1; the interaction is probably indirect and is mediated via HCFC1 (PubMed:23629655). UniProt
Domain
The C-terminus domain is responsible for the localization to the centrosome during mitosis. UniProt
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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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