Ubiquitin thioesterase otulin (OTULIN)

Deubiquitinase that specifically removes linear ('Met- 1'-linked) polyubiquitin chains to substrates and functions as a regulator of angiogenesis and innate immune response (PubMed:23708998, PubMed:23746843, PubMed:23806334, PubMed:23827681, PubMed:27523608, PubMed:27559085, PubMed:24726323, PubMed:24726327). Associates with the LUBAC complex via direct interaction with RNF31 and counteracts its action by cleaving linear polyubiquitin chains to substrates (PubMed:23708998, PubMed:23746843, PubMed:23806334, PubMed:23827681, PubMed:24726323, PubMed:24726327).

Required during angiogenesis, craniofacial and neuronal growth by regulating the canonical Wnt signaling with the LUBAC complex (PubMed:23708998). Acts as a negative regulator of NF- kappa-B by counteracting activity of the LUBAC complex (PubMed:23746843, PubMed:23806334).