Summary

Name RNF135
Full Name E3 ubiquitin-protein ligase RNF135
Synonyms RIG-I E3 ubiquitin ligase, REUL, RING finger protein 135, RING-type E3 ubiquitin transferase RNF135, Riplet |
Primary ID Q8IUD6
Links - -
Type protein
Relations 3
Function E2-dependent E3 ubiquitin-protein ligase that functions as a RIG-I/DDX58 coreceptor in the sensing of viral RNAs in cell cytoplasm and the activation of the antiviral innate immune response (PubMed:19017631, PubMed:19484123, PubMed:21147464, PubMed:23950712, PubMed:28469175, PubMed:31006531). Together with the UBE2D3, UBE2N and UB2V1 E2 ligases, catalyzes the 'Lys-63'-linked polyubiquitination of RIG-I/DDX58 oligomerized on viral RNAs, an essential step in the activation of the RIG-I signaling pathway (PubMed:19017631, PubMed:21147464, PubMed:28469175, PubMed:31006531). Through a ubiquitin-independent parallel mechanism, which consists in bridging RIG-I/DDX58 filaments forming on longer viral RNAs, further activates the RIG-I signaling pathway (PubMed:31006531). This second mechanism that synergizes with the ubiquitin-dependent one would thereby allow an RNA length-dependent regulation of the RIG-I signaling pathway (Probable). Associated with the E2 ligase UBE2N, also constitutively synthesizes unanchored 'Lys-63'-linked polyubiquitin chains that may also activate the RIG-I signaling pathway (PubMed:28469175, PubMed:31006531).

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Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png ubiquitination DDX58 0.757
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png ubiquitination RNF135 0.2
Publications: 1 Organism: Homo Sapiens