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| | <StructureSection load='3nj5' size='340' side='right'caption='[[3nj5]], [[Resolution|resolution]] 1.67Å' scene=''> | | <StructureSection load='3nj5' size='340' side='right'caption='[[3nj5]], [[Resolution|resolution]] 1.67Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3nj5]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Chick Chick]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3NJ5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3NJ5 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3nj5]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3NJ5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3NJ5 FirstGlance]. <br> |
| - | </td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3nj5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3nj5 OCA], [http://pdbe.org/3nj5 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3nj5 RCSB], [http://www.ebi.ac.uk/pdbsum/3nj5 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3nj5 ProSAT]</span></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.67Å</td></tr> |
| | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3nj5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3nj5 OCA], [https://pdbe.org/3nj5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3nj5 RCSB], [https://www.ebi.ac.uk/pdbsum/3nj5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3nj5 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/O73909_CHICK O73909_CHICK]] Produced by activated macrophages, IL-1 stimulates thymocyte proliferation by inducing IL-2 release, B-cell maturation and proliferation, and fibroblast growth factor activity. IL-1 proteins are involved in the inflammatory response, being identified as endogenous pyrogens, and are reported to stimulate the release of prostaglandin and collagenase from synovial cells (By similarity).[RuleBase:RU003753] | + | [https://www.uniprot.org/uniprot/O73909_CHICK O73909_CHICK] Produced by activated macrophages, IL-1 stimulates thymocyte proliferation by inducing IL-2 release, B-cell maturation and proliferation, and fibroblast growth factor activity. IL-1 proteins are involved in the inflammatory response, being identified as endogenous pyrogens, and are reported to stimulate the release of prostaglandin and collagenase from synovial cells (By similarity).[RuleBase:RU003753] |
| - | <div style="background-color:#fffaf0;">
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| - | == Publication Abstract from PubMed ==
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| - | Interleukin-1 beta (IL-1beta) is an important cytokine in the immune system. The properties of avian IL-1betas are less well understood than the mammalian IL-1betas, and there is no available structure of avian IL-1betas in the Protein Data Bank. Here, we report the crystal structures of wild-type and Y157F mutant IL-1betas from chicken. Both the wild-type and mutant IL-1betas share a beta-trefoil conformation similar to that of human IL-1beta and also have an internal hydrophobic cavity. However, the cavity sizes clearly differ from that of human IL-1beta due to the packing of hydrophobic residues. Our studies also reveal that the relative thermal stability of IL-1betas does not correlate with cavity size but rather is dependent on the amino acid residues present around the cavity. This cavity serves as a scaffold for maintaining the structure of the IL-1beta core region but does not have a biological function per se. Moreover, we found that human IL-1beta cannot induce chemokine expression in chicken fibroblasts or elevate plasma cortisol levels in chickens, implying a lack of cross-species bioactivity. Close examination reveals that significant structural and sequence differences occur in the terminal and some loop regions between human and chicken IL-1betas. These variable regions have been shown to be critical for receptor binding, thus resulting in a lack of species cross-reactivity between human and chicken IL-1beta.
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| - | Structural and functional comparison of cytokine interleukin-1 beta from chicken and human.,Cheng CS, Chen WT, Lee LH, Chen YW, Chang SY, Lyu PC, Yin HS Mol Immunol. 2011 Mar;48(6-7):947-55. Epub 2011 Feb 1. PMID:21288573<ref>PMID:21288573</ref>
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| - | </div>
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| - | <div class="pdbe-citations 3nj5" style="background-color:#fffaf0;"></div>
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| | | | |
| | ==See Also== | | ==See Also== |
| - | *[[Interleukin|Interleukin]] | + | *[[Interleukin 3D structures|Interleukin 3D structures]] |
| - | == References ==
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| - | <references/>
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Chick]] | + | [[Category: Gallus gallus]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Chen, Y W]] | + | [[Category: Chen YW]] |
| - | [[Category: Yin, H S]] | + | [[Category: Yin HS]] |
| - | [[Category: Chicken]]
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| - | [[Category: Cytokine]]
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| - | [[Category: Hydrophobic cavity mutant]]
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| - | [[Category: Interleukin-1 beta]]
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