E3 ubiquitin-protein ligase RNF31 - Q96EP0 (RNF31_HUMAN)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for Q96EP0: 16
 
Function
E3 ubiquitin-protein ligase component of the LUBAC complex which conjugates linear ('Met-1'-linked) polyubiquitin chains to substrates and plays a key role in NF-kappa-B activation and regulation of inflammation (PubMed:17006537, PubMed:19136968, PubMed:20005846, PubMed:21455173, PubMed:21455180, PubMed:21455181, PubMed:22863777, PubMed:28189684). LUBAC conjugates linear polyubiquitin to IKBKG and RIPK1 and is involved in activation of the canonical NF-kappa-B and the JNK signaling pathways (PubMed:17006537, PubMed:19136968, PubMed:20005846, PubMed:21455173, PubMed:21455180, PubMed:21455181, PubMed:22863777, PubMed:28189684). Linear ubiquitination mediated by the LUBAC complex interferes with TNF-induced cell death and thereby prevents inflammation (PubMed:21455173, PubMed:28189684). LUBAC is recruited to the TNF-R1 signaling complex (TNF-RSC) following polyubiquitination of TNF-RSC components by BIRC2 and/or BIRC3 and to conjugate linear polyubiquitin to IKBKG and possibly other components contributing to the stability of the complex (PubMed:20005846, PubMed:27458237). Together with OTULIN, the LUBAC complex regulates the canonical Wnt signaling during angiogenesis (PubMed:23708998). Binds polyubiquitin of different linkage types (PubMed:23708998). UniProt
Catalytic Activity
[E2 ubiquitin-conjugating enzyme]-S-ubiquitinyl-L-cysteine + [acceptor protein]-L-lysine = [E2 ubiquitin-conjugating enzyme]-L-cysteine + [acceptor protein]-N6-ubiquitinyl-L-lysine. UniProt
Pathway Maps
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Subunit Structure
Component of the LUBAC complex (linear ubiquitin chain assembly complex) which consists of SHARPIN, RBCK1 and RNF31 (PubMed:17006537, PubMed:21455173, PubMed:21455180, PubMed:21455181). LUBAC has a MW of approximately 600 kDa suggesting a heteromultimeric assembly of its subunits (PubMed:17006537, PubMed:21455173, PubMed:21455180, PubMed:21455181). Associates with the TNF-R1 signaling complex (TNF-RSC) in a stimulation-dependent manner (PubMed:20005846). Interacts (via the PUB domain) with OTULIN (via the PIM motif); the interaction is direct (PubMed:23708998, PubMed:24726323, PubMed:24726327). Interacts (via the PUB domain) with VCP (via the PIM motif) (PubMed:24726327). Interacts (via the PUB domain) with SPATA2 (via the PIM motif); interaction is direct and bridges RNF31 and CYLD (PubMed:27458237, PubMed:27545878, PubMed:28189684, PubMed:27591049). Interacts with CYLD; the interaction is indirect and is mediated via SPATA2 (PubMed:27458237, PubMed:27545878, PubMed:26997266). Interacts with MUSK (By similarity). UniProt
Domain
The linear ubiquitin chain determining domain (LDD) mediates the final transfer of ubiquitin from RING 2 onto the N-terminus of a target ubiquitin. UniProt
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Data origin/color codes
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Data in green originates from UniProtKB  
Variation data (sourced from UniProt) shows non-genetic variation from the ExPASy   and dbSNP   websites.
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.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
  • Red: hydrophobic
  • 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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