6ggs

Structure of RIP2 CARD filamentStructure of RIP2 CARD filament

6ggs, resolution 3.94Å

Structural highlights

6ggs is a 10 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Experimental data:	Check
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[RIPK2_HUMAN] Serine/threonine/tyrosine kinase that plays an essential role in modulation of innate and adaptive immune responses. Upon stimulation by bacterial peptidoglycans, NOD1 and NOD2 are activated, oligomerize and recruit RIPK2 through CARD-CARD domains. Once recruited, RIPK2 autophosphorylates and undergoes 'Lys-63'-linked polyubiquitination by E3 ubiquitin ligases BIRC2 and BIRC3. The polyubiquitinated protein mediates the recruitment of MAP3K7/TAK1 to IKBKG/NEMO and induces 'Lys-63'-linked polyubiquitination of IKBKG/NEMO and subsequent activation of IKBKB/IKKB. In turn, NF-kappa-B is released from NF-kappa-B inhibitors and translocates into the nucleus where it activates the transcription of hundreds of genes involved in immune response, growth control, or protection against apoptosis. Plays also a role during engagement of the T-cell receptor (TCR) in promoting BCL10 phosphorylation and subsequent NF-kappa-B activation.^[1] ^[2] ^[3] ^[4]

Publication Abstract from PubMed

Activation of the innate immune pattern recognition receptor NOD2 by the bacterial muramyl-dipeptide peptidoglycan fragment triggers recruitment of the downstream adaptor kinase RIP2, eventually leading to NF-kappaB activation and proinflammatory cytokine production. Here we show that full-length RIP2 can form long filaments mediated by its caspase recruitment domain (CARD), in common with other innate immune adaptor proteins. We further show that the NOD2 tandem CARDs bind to one end of the RIP2 CARD filament, suggesting a mechanism for polar filament nucleation by activated NOD2. We combine X-ray crystallography, solid-state NMR and high-resolution cryo-electron microscopy to determine the atomic structure of the helical RIP2 CARD filament, which reveals the intermolecular interactions that stabilize the assembly. Using structure-guided mutagenesis, we demonstrate the importance of RIP2 polymerization for the activation of NF-kappaB signalling by NOD2. Our results could be of use to develop new pharmacological strategies to treat inflammatory diseases characterised by aberrant NOD2 signalling.

RIP2 filament formation is required for NOD2 dependent NF-kappaB signalling.,Pellegrini E, Desfosses A, Wallmann A, Schulze WM, Rehbein K, Mas P, Signor L, Gaudon S, Zenkeviciute G, Hons M, Malet H, Gutsche I, Sachse C, Schoehn G, Oschkinat H, Cusack S Nat Commun. 2018 Oct 2;9(1):4043. doi: 10.1038/s41467-018-06451-3. PMID:30279485^[5]

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

References

↑ Ruefli-Brasse AA, Lee WP, Hurst S, Dixit VM. Rip2 participates in Bcl10 signaling and T-cell receptor-mediated NF-kappaB activation. J Biol Chem. 2004 Jan 9;279(2):1570-4. Epub 2003 Nov 24. PMID:14638696 doi:http://dx.doi.org/10.1074/jbc.C300460200
↑ Manon F, Favier A, Nunez G, Simorre JP, Cusack S. Solution structure of NOD1 CARD and mutational analysis of its interaction with the CARD of downstream kinase RICK. J Mol Biol. 2007 Jan 5;365(1):160-74. Epub 2006 Sep 29. PMID:17054981 doi:10.1016/j.jmb.2006.09.067
↑ Hasegawa M, Fujimoto Y, Lucas PC, Nakano H, Fukase K, Nunez G, Inohara N. A critical role of RICK/RIP2 polyubiquitination in Nod-induced NF-kappaB activation. EMBO J. 2008 Jan 23;27(2):373-83. Epub 2007 Dec 13. PMID:18079694 doi:http://dx.doi.org/10.1038/sj.emboj.7601962
↑ Tigno-Aranjuez JT, Asara JM, Abbott DW. Inhibition of RIP2's tyrosine kinase activity limits NOD2-driven cytokine responses. Genes Dev. 2010 Dec 1;24(23):2666-77. doi: 10.1101/gad.1964410. PMID:21123652 doi:http://dx.doi.org/10.1101/gad.1964410
↑ Pellegrini E, Desfosses A, Wallmann A, Schulze WM, Rehbein K, Mas P, Signor L, Gaudon S, Zenkeviciute G, Hons M, Malet H, Gutsche I, Sachse C, Schoehn G, Oschkinat H, Cusack S. RIP2 filament formation is required for NOD2 dependent NF-kappaB signalling. Nat Commun. 2018 Oct 2;9(1):4043. doi: 10.1038/s41467-018-06451-3. PMID:30279485 doi:http://dx.doi.org/10.1038/s41467-018-06451-3

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OCA

[1] Ruefli-Brasse AA, Lee WP, Hurst S, Dixit VM. Rip2 participates in Bcl10 signaling and T-cell receptor-mediated NF-kappaB activation. J Biol Chem. 2004 Jan 9;279(2):1570-4. Epub 2003 Nov 24. PMID:14638696 doi:http://dx.doi.org/10.1074/jbc.C300460200

[2] Manon F, Favier A, Nunez G, Simorre JP, Cusack S. Solution structure of NOD1 CARD and mutational analysis of its interaction with the CARD of downstream kinase RICK. J Mol Biol. 2007 Jan 5;365(1):160-74. Epub 2006 Sep 29. PMID:17054981 doi:10.1016/j.jmb.2006.09.067

[3] Hasegawa M, Fujimoto Y, Lucas PC, Nakano H, Fukase K, Nunez G, Inohara N. A critical role of RICK/RIP2 polyubiquitination in Nod-induced NF-kappaB activation. EMBO J. 2008 Jan 23;27(2):373-83. Epub 2007 Dec 13. PMID:18079694 doi:http://dx.doi.org/10.1038/sj.emboj.7601962

[4] Tigno-Aranjuez JT, Asara JM, Abbott DW. Inhibition of RIP2's tyrosine kinase activity limits NOD2-driven cytokine responses. Genes Dev. 2010 Dec 1;24(23):2666-77. doi: 10.1101/gad.1964410. PMID:21123652 doi:http://dx.doi.org/10.1101/gad.1964410

[5] Pellegrini E, Desfosses A, Wallmann A, Schulze WM, Rehbein K, Mas P, Signor L, Gaudon S, Zenkeviciute G, Hons M, Malet H, Gutsche I, Sachse C, Schoehn G, Oschkinat H, Cusack S. RIP2 filament formation is required for NOD2 dependent NF-kappaB signalling. Nat Commun. 2018 Oct 2;9(1):4043. doi: 10.1038/s41467-018-06451-3. PMID:30279485 doi:http://dx.doi.org/10.1038/s41467-018-06451-3

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