6i9c

Structure of the OTU domain of OTULIN G281R mutantStructure of the OTU domain of OTULIN G281R mutant

Structural highlights

6i9c is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Gene:	OTULIN, FAM105B (HUMAN)
Activity:	Ubiquitinyl hydrolase 1, with EC number 3.4.19.12
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[OTUL_HUMAN] Deubiquitinase that specifically removes linear ('Met-1'-linked) polyubiquitin chains to substrates and acts as a regulator of angiogenesis and innate immune response. Associates with the LUBAC complex via direct interaction with RNF31 and counteracts its action by cleaving linear polyubiquitin chains to substrates. Required during angiogenesis, craniofacial and neuronal development by regulating the canonical Wnt signaling together with the LUBAC complex. Acts as a negative regulator of NF-kappa-B by counteracting activity of the LUBAC complex. Plays a key role in innate immune response: required to restrict linear polyubiquitin formation on RIPK2 in response to NOD2 stimulation, probably to limit NOD2-dependent proinflammatory signaling.^[1] ^[2] ^[3] ^[4]

Publication Abstract from PubMed

The deubiquitinase OTULIN removes methionine-1 (M1)-linked polyubiquitin signals conjugated by the linear ubiquitin chain assembly complex (LUBAC) and is critical for preventing TNF-driven inflammation in OTULIN-related autoinflammatory syndrome (ORAS). Five ORAS patients have been reported, but how dysregulated M1-linked polyubiquitin signalling causes their symptoms is unclear. Here, we report a new case of ORAS in which an OTULIN-Gly281Arg mutation leads to reduced activity and stability in vitro and in cells. In contrast to OTULIN-deficient monocytes, in which TNF signalling and NF-kappaB activation are increased, loss of OTULIN in patient-derived fibroblasts leads to a reduction in LUBAC levels and an impaired response to TNF Interestingly, both patient-derived fibroblasts and OTULIN-deficient monocytes are sensitised to certain types of TNF-induced death, and apoptotic cells are evident in ORAS patient skin lesions. Remarkably, haematopoietic stem cell transplantation leads to complete resolution of inflammatory symptoms, including fevers, panniculitis and diarrhoea. Therefore, haematopoietic cells are necessary for clinical manifestation of ORAS Together, our data suggest that ORAS pathogenesis involves hyper-inflammatory immune cells and TNF-induced death of both leukocytes and non-haematopoietic cells.

OTULIN deficiency in ORAS causes cell type-specific LUBAC degradation, dysregulated TNF signalling and cell death.,Damgaard RB, Elliott PR, Swatek KN, Maher ER, Stepensky P, Elpeleg O, Komander D, Berkun Y EMBO Mol Med. 2019 Feb 25. pii: emmm.201809324. doi: 10.15252/emmm.201809324. PMID:30804083^[5]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Mevissen TE, Hospenthal MK, Geurink PP, Elliott PR, Akutsu M, Arnaudo N, Ekkebus R, Kulathu Y, Wauer T, El Oualid F, Freund SM, Ovaa H, Komander D. OTU Deubiquitinases Reveal Mechanisms of Linkage Specificity and Enable Ubiquitin Chain Restriction Analysis. Cell. 2013 Jul 3;154(1):169-84. doi: 10.1016/j.cell.2013.05.046. PMID:23827681 doi:10.1016/j.cell.2013.05.046
↑ Fiil BK, Damgaard RB, Wagner SA, Keusekotten K, Fritsch M, Bekker-Jensen S, Mailand N, Choudhary C, Komander D, Gyrd-Hansen M. OTULIN restricts Met1-linked ubiquitination to control innate immune signaling. Mol Cell. 2013 Jun 27;50(6):818-30. doi: 10.1016/j.molcel.2013.06.004. PMID:23806334 doi:http://dx.doi.org/10.1016/j.molcel.2013.06.004
↑ Keusekotten K, Elliott PR, Glockner L, Fiil BK, Damgaard RB, Kulathu Y, Wauer T, Hospenthal MK, Gyrd-Hansen M, Krappmann D, Hofmann K, Komander D. OTULIN Antagonizes LUBAC Signaling by Specifically Hydrolyzing Met1-Linked Polyubiquitin. Cell. 2013 Jun 6;153(6):1312-26. doi: 10.1016/j.cell.2013.05.014. PMID:23746843 doi:10.1016/j.cell.2013.05.014
↑ Rivkin E, Almeida SM, Ceccarelli DF, Juang YC, MacLean TA, Srikumar T, Huang H, Dunham WH, Fukumura R, Xie G, Gondo Y, Raught B, Gingras AC, Sicheri F, Cordes SP. The linear ubiquitin-specific deubiquitinase gumby regulates angiogenesis. Nature. 2013 Jun 20;498(7454):318-24. doi: 10.1038/nature12296. Epub 2013 May 24. PMID:23708998 doi:10.1038/nature12296
↑ Damgaard RB, Elliott PR, Swatek KN, Maher ER, Stepensky P, Elpeleg O, Komander D, Berkun Y. OTULIN deficiency in ORAS causes cell type-specific LUBAC degradation, dysregulated TNF signalling and cell death. EMBO Mol Med. 2019 Feb 25. pii: emmm.201809324. doi: 10.15252/emmm.201809324. PMID:30804083 doi:http://dx.doi.org/10.15252/emmm.201809324

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OCA

[1] Mevissen TE, Hospenthal MK, Geurink PP, Elliott PR, Akutsu M, Arnaudo N, Ekkebus R, Kulathu Y, Wauer T, El Oualid F, Freund SM, Ovaa H, Komander D. OTU Deubiquitinases Reveal Mechanisms of Linkage Specificity and Enable Ubiquitin Chain Restriction Analysis. Cell. 2013 Jul 3;154(1):169-84. doi: 10.1016/j.cell.2013.05.046. PMID:23827681 doi:10.1016/j.cell.2013.05.046

[2] Fiil BK, Damgaard RB, Wagner SA, Keusekotten K, Fritsch M, Bekker-Jensen S, Mailand N, Choudhary C, Komander D, Gyrd-Hansen M. OTULIN restricts Met1-linked ubiquitination to control innate immune signaling. Mol Cell. 2013 Jun 27;50(6):818-30. doi: 10.1016/j.molcel.2013.06.004. PMID:23806334 doi:http://dx.doi.org/10.1016/j.molcel.2013.06.004

[3] Keusekotten K, Elliott PR, Glockner L, Fiil BK, Damgaard RB, Kulathu Y, Wauer T, Hospenthal MK, Gyrd-Hansen M, Krappmann D, Hofmann K, Komander D. OTULIN Antagonizes LUBAC Signaling by Specifically Hydrolyzing Met1-Linked Polyubiquitin. Cell. 2013 Jun 6;153(6):1312-26. doi: 10.1016/j.cell.2013.05.014. PMID:23746843 doi:10.1016/j.cell.2013.05.014

[4] Rivkin E, Almeida SM, Ceccarelli DF, Juang YC, MacLean TA, Srikumar T, Huang H, Dunham WH, Fukumura R, Xie G, Gondo Y, Raught B, Gingras AC, Sicheri F, Cordes SP. The linear ubiquitin-specific deubiquitinase gumby regulates angiogenesis. Nature. 2013 Jun 20;498(7454):318-24. doi: 10.1038/nature12296. Epub 2013 May 24. PMID:23708998 doi:10.1038/nature12296

[5] Damgaard RB, Elliott PR, Swatek KN, Maher ER, Stepensky P, Elpeleg O, Komander D, Berkun Y. OTULIN deficiency in ORAS causes cell type-specific LUBAC degradation, dysregulated TNF signalling and cell death. EMBO Mol Med. 2019 Feb 25. pii: emmm.201809324. doi: 10.15252/emmm.201809324. PMID:30804083 doi:http://dx.doi.org/10.15252/emmm.201809324

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