3g9v is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
I22R2_HUMAN Isoform 2 is a receptor for IL22. Binds to IL22, prevents interaction with the functional IL-22R complex and blocks the activity of IL22 (in vitro). May play an important role as an IL22 antagonist in the regulation of inflammatory responses.[1][2][3] Isoform 1 may play a role in establishing and maintaining successful pregnancy.[4][5][6]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Interleukin-22 (IL-22) plays an important role in the regulation of immune and inflammatory responses in mammals. The IL-22 binding protein (IL-22BP), a soluble receptor that specifically binds IL-22, prevents the IL-22/interleukin-22 receptor 1 (IL-22R1)/interleukin-10 receptor 2 (IL-10R2) complex assembly and blocks IL-22 biological activity. Here we present the crystal structure of the IL-22/IL-22BP complex at 2.75 A resolution. The structure reveals IL-22BP residues critical for IL-22 binding, which were confirmed by site-directed mutagenesis and functional studies. Comparison of IL-22/IL-22BP and IL-22/IL-22R1 crystal structures shows that both receptors display an overlapping IL-22 binding surface, which is consistent with the inhibitory role played by IL-22 binding protein.
Crystal structure of a soluble decoy receptor IL-22BP bound to interleukin-22.,de Moura PR, Watanabe L, Bleicher L, Colau D, Dumoutier L, Lemaire MM, Renauld JC, Polikarpov I FEBS Lett. 2009 Apr 2;583(7):1072-7. Epub 2009 Mar 11. PMID:19285080[7]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
↑Kotenko SV, Izotova LS, Mirochnitchenko OV, Esterova E, Dickensheets H, Donnelly RP, Pestka S. Identification, cloning, and characterization of a novel soluble receptor that binds IL-22 and neutralizes its activity. J Immunol. 2001 Jun 15;166(12):7096-103. PMID:11390454
↑Dumoutier L, Lejeune D, Colau D, Renauld JC. Cloning and characterization of IL-22 binding protein, a natural antagonist of IL-10-related T cell-derived inducible factor/IL-22. J Immunol. 2001 Jun 15;166(12):7090-5. PMID:11390453
↑Xu W, Presnell SR, Parrish-Novak J, Kindsvogel W, Jaspers S, Chen Z, Dillon SR, Gao Z, Gilbert T, Madden K, Schlutsmeyer S, Yao L, Whitmore TE, Chandrasekher Y, Grant FJ, Maurer M, Jelinek L, Storey H, Brender T, Hammond A, Topouzis S, Clegg CH, Foster DC. A soluble class II cytokine receptor, IL-22RA2, is a naturally occurring IL-22 antagonist. Proc Natl Acad Sci U S A. 2001 Aug 14;98(17):9511-6. Epub 2001 Jul 31. PMID:11481447 doi:https://dx.doi.org/10.1073/pnas.171303198
↑Kotenko SV, Izotova LS, Mirochnitchenko OV, Esterova E, Dickensheets H, Donnelly RP, Pestka S. Identification, cloning, and characterization of a novel soluble receptor that binds IL-22 and neutralizes its activity. J Immunol. 2001 Jun 15;166(12):7096-103. PMID:11390454
↑Dumoutier L, Lejeune D, Colau D, Renauld JC. Cloning and characterization of IL-22 binding protein, a natural antagonist of IL-10-related T cell-derived inducible factor/IL-22. J Immunol. 2001 Jun 15;166(12):7090-5. PMID:11390453
↑Xu W, Presnell SR, Parrish-Novak J, Kindsvogel W, Jaspers S, Chen Z, Dillon SR, Gao Z, Gilbert T, Madden K, Schlutsmeyer S, Yao L, Whitmore TE, Chandrasekher Y, Grant FJ, Maurer M, Jelinek L, Storey H, Brender T, Hammond A, Topouzis S, Clegg CH, Foster DC. A soluble class II cytokine receptor, IL-22RA2, is a naturally occurring IL-22 antagonist. Proc Natl Acad Sci U S A. 2001 Aug 14;98(17):9511-6. Epub 2001 Jul 31. PMID:11481447 doi:https://dx.doi.org/10.1073/pnas.171303198
↑de Moura PR, Watanabe L, Bleicher L, Colau D, Dumoutier L, Lemaire MM, Renauld JC, Polikarpov I. Crystal structure of a soluble decoy receptor IL-22BP bound to interleukin-22. FEBS Lett. 2009 Apr 2;583(7):1072-7. Epub 2009 Mar 11. PMID:19285080 doi:10.1016/j.febslet.2009.03.006
