Proteopedia

7e57

Crystal structure of murine GITR-GITRL complexCrystal structure of murine GITR-GITRL complex

Structural highlights

7e57 is a 4 chain structure with sequence from Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 3.302Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

TNF18_MOUSE Cytokine that binds to TNFRSF18/AITR/GITR (PubMed:14521928, PubMed:14647196). Regulates T-cell responses (PubMed:14647196). Can function as costimulator and lower the threshold for T-cell activation and T-cell proliferation (PubMed:14608036, PubMed:15128759). Important for interactions between activated T-lymphocytes and endothelial cells. Mediates activation of NF-kappa-B (PubMed:14521928, PubMed:14647196, PubMed:18178614). Triggers increased phosphorylation of STAT1 and up-regulates expression of VCAM1 and ICAM1 (By similarity). Promotes leukocyte adhesion to endothelial cells (PubMed:23892569). Regulates migration of monocytes from the splenic reservoir to sites of inflammation (PubMed:24107315).[UniProtKB:Q9UNG2][1] [2] [3] [4] [5] [6] [7]

Publication Abstract from PubMed

Glucocorticoid-induced tumor necrosis factor receptor family-related protein (GITR) is a critical regulatory molecule in modulation of T cell immune responses. Here we report the mouse GITR (mGITR) and mGITR ligand (mGITRL) complex structure and find that the binding interface of mGITR and mGITRL is distinct from the typical tumor necrosis factor superfamily (TNFSF)/TNF receptor superfamily (TNFRSF) members. mGITR binds to its ligand with a single domain, whereas the binding interface on mGITRL is located on the side, which is distal from conserved binding sites of TNFSF molecules. Mutational analysis reveals that the binding interface of GITR/GITRL in humans is conserved with that in the mouse. Substitution of key interacting D93-I94-V95 (DIV) in mGITR with the corresponding K93-F94-S95 (KFS) in human GITR enables cross-recognition with human GITRL and cross-activation of receptor signaling. The findings of this study substantially expand our understanding of the interaction of TNFSF/TNFRSF superfamily molecules and can benefit the future design of biologics by targeting GITR/GITRL.

Atypical TNF-TNFR superfamily binding interface in the GITR-GITRL complex for T cell activation.,Zhao M, Fu L, Chai Y, Sun M, Li Y, Wang S, Qi J, Zeng B, Kang L, Gao GF, Tan S Cell Rep. 2021 Sep 21;36(12):109734. doi: 10.1016/j.celrep.2021.109734. PMID:34551288[8]

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

See Also

References

  1. ↑ Yu KY, Kim HS, Song SY, Min SS, Jeong JJ, Youn BS. Identification of a ligand for glucocorticoid-induced tumor necrosis factor receptor constitutively expressed in dendritic cells. Biochem Biophys Res Commun. 2003 Oct 17;310(2):433-8. PMID:14521928
  2. ↑ Tone M, Tone Y, Adams E, Yates SF, Frewin MR, Cobbold SP, Waldmann H. Mouse glucocorticoid-induced tumor necrosis factor receptor ligand is costimulatory for T cells. Proc Natl Acad Sci U S A. 2003 Dec 9;100(25):15059-64. Epub 2003 Nov 7. PMID:14608036 doi:http://dx.doi.org/10.1073/pnas.2334901100
  3. ↑ Kim JD, Choi BK, Bae JS, Lee UH, Han IS, Lee HW, Youn BS, Vinay DS, Kwon BS. Cloning and characterization of GITR ligand. Genes Immun. 2003 Dec;4(8):564-9. PMID:14647196 doi:http://dx.doi.org/10.1038/sj.gene.6364026
  4. ↑ Ji HB, Liao G, Faubion WA, Abadia-Molina AC, Cozzo C, Laroux FS, Caton A, Terhorst C. Cutting edge: the natural ligand for glucocorticoid-induced TNF receptor-related protein abrogates regulatory T cell suppression. J Immunol. 2004 May 15;172(10):5823-7. PMID:15128759
  5. ↑ Zhou Z, Tone Y, Song X, Furuuchi K, Lear JD, Waldmann H, Tone M, Greene MI, Murali R. Structural basis for ligand-mediated mouse GITR activation. Proc Natl Acad Sci U S A. 2008 Jan 15;105(2):641-5. Epub 2008 Jan 4. PMID:18178614
  6. ↑ Lacal PM, Petrillo MG, Ruffini F, Muzi A, Bianchini R, Ronchetti S, Migliorati G, Riccardi C, Graziani G, Nocentini G. Glucocorticoid-induced tumor necrosis factor receptor family-related ligand triggering upregulates vascular cell adhesion molecule-1 and intercellular adhesion molecule-1 and promotes leukocyte adhesion. J Pharmacol Exp Ther. 2013 Oct;347(1):164-72. doi: 10.1124/jpet.113.207605. Epub , 2013 Jul 26. PMID:23892569 doi:http://dx.doi.org/10.1124/jpet.113.207605
  7. ↑ Liao G, van Driel B, Magelky E, O'Keeffe MS, de Waal Malefyt R, Engel P, Herzog RW, Mizoguchi E, Bhan AK, Terhorst C. Glucocorticoid-induced TNF receptor family-related protein ligand regulates the migration of monocytes to the inflamed intestine. FASEB J. 2014 Jan;28(1):474-84. doi: 10.1096/fj.13-236505. Epub 2013 Oct 9. PMID:24107315 doi:http://dx.doi.org/10.1096/fj.13-236505
  8. ↑ Zhao M, Fu L, Chai Y, Sun M, Li Y, Wang S, Qi J, Zeng B, Kang L, Gao GF, Tan S. Atypical TNF-TNFR superfamily binding interface in the GITR-GITRL complex for T cell activation. Cell Rep. 2021 Sep 21;36(12):109734. PMID:34551288 doi:10.1016/j.celrep.2021.109734

7e57, resolution 3.30Å

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