Rabbit anti-Human DTX3L Polyclonal Antibody

Uniprot Id

Q8TDB6

Target Species

Human

Target Name

DTX3L

Target Full Name

E3 ubiquitin-protein ligase DTX3L

Target Function

E3 ubiquitin-protein ligase which, in association with ADP-ribosyltransferase PARP9, plays a role in DNA damage repair and in interferon-mediated antiviral responses. Monoubiquitinates several histones, including histone H2A, H2B, H3 and H4. In response to DNA damage, mediates monoubiquitination of 'Lys-91' of histone H4 (H4K91ub1). 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). PARP1-dependent PARP9-DTX3L-mediated ubiquitination promotes the rapid and specific recruitment of 53BP1/TP53BP1, UIMC1/RAP80, and BRCA1 to DNA damage sites. By monoubiquitinating histone H2B H2BC9/H2BJ and thereby promoting chromatin remodeling, positively regulates STAT1-dependent interferon-stimulated gene transcription and thus STAT1-mediated control of viral replication. Independently of its catalytic activity, promotes the sorting of chemokine receptor CXCR4 from early endosome to lysosome following CXCL12 stimulation by reducing E3 ligase ITCH activity and thus ITCH-mediated ubiquitination of endosomal sorting complex required for transport ESCRT-0 components HGS and STAM. In addition, required for the recruitment of HGS and STAM to early endosomes. In association with PARP9, plays a role in antiviral responses by mediating 'Lys-48'-linked ubiquitination of encephalomyocarditis virus (EMCV) and human rhinovirus (HRV) C3 proteases and thus promoting their proteosomal-mediated degradation.

Target Subcellular Location

Cytoplasm. Nucleus. Early endosome membrane; Peripheral membrane protein; Cytoplasmic side. Lysosome membrane; Peripheral membrane protein; Cytoplasmic side.

Target Protein Families

Deltex family

Target Research Area

Epigenetics and Nuclear Signaling

Target Synonyms

B lymphoma and BAL associated protein; B-lymphoma- and BAL-associated protein; BBAP; Deltex 3 like; DTX 3L; DTX3L; DTX3L_HUMAN; E3 ubiquitin-protein ligase DTX3L; Protein deltex 3 like; Protein deltex 3 like protein; Protein deltex-3-like; Rhysin 2; Rhysin-2; Rhysin2

Target Background

Enables several functions, including STAT family protein binding activity; ubiquitin-like protein ligase binding activity; and ubiquitin-protein transferase activity. Involved in several processes, including positive regulation of macromolecule metabolic process; positive regulation of protein localization; and protein ubiquitination. Located in cytosol; lysosome; and nucleoplasm. Part of protein-containing complex. Colocalizes with early endosome and nucleus.