background:
DTX3L functions as an E3 ubiquitin ligase (Takeyama et al., 2003 [PubMed 12670957]).[supplied by OMIM, Nov 2009]
Function:
Ubiquitin ligase that mediates monoubiquitination of 'Lys-91' of histone H4 (H4K91ub1), in response to DNA damage. Protects cells exposed to DNA-damaging agents. The exact role of H4K91ub1 in DNA damage response is still unclear but it may function as a licensing signal for additional histone H4 post-translational modifications such as H4 'Lys-20' methylation (H4K20me). Involved in the recruitment of 53BP1/TP53BP1 to sites of DNA damage by mediating H4K91ub1 formation.
Subcellular Location:
Cytoplasm. Nucleus.
Similarity:
Belongs to the Deltex family.
Contains 1 RING-type zinc finger.
Database links:
Entrez Gene: 151636 Human
Entrez Gene: 209200 Mouse
Omim: 613143 Human
SwissProt: Q8TDB6 Human
SwissProt: Q3UIR3 Mouse
Unigene: 518201 Human
Unigene: 390852 Mouse
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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