2nry
From Proteopedia
(New page: 200px<br /> <applet load="2nry" size="450" color="white" frame="true" align="right" spinBox="true" caption="2nry, resolution 2.15Å" /> '''Crystal structure o...) |
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caption="2nry, resolution 2.15Å" /> | caption="2nry, resolution 2.15Å" /> | ||
'''Crystal structure of IRAK-4'''<br /> | '''Crystal structure of IRAK-4'''<br /> | ||
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==Overview== | ==Overview== | ||
Interleukin-1 (IL-1) receptor-associated kinase-4 (IRAK-4) is a, serine/threonine kinase that plays an essential role in signal, transduction by Toll/IL-1 receptors (TIRs). Here, we report the crystal, structures of the phosphorylated human IRAK-4 kinase domain in complex, with a potent inhibitor and with staurosporine to 2.0 and 2.2 A, respectively. The structures reveal that IRAK-4 has a unique tyrosine, gatekeeper residue that interacts with the conserved glutamate from helix, alphaC. Consequently, helix alphaC is "pulled in" to maintain the active, orientation, and the usual pre-existing hydrophobic back pocket of the, ATP-binding site is abolished. The peptide substrate-binding site is more, open when compared with other protein kinases due to a marked movement of, helix alphaG. The pattern of phosphate ligand interactions in the, activation loop bears a close resemblance to that of a tyrosine kinase., Our results provide insights into IRAK-4 function and the design of, selective inhibitors. | Interleukin-1 (IL-1) receptor-associated kinase-4 (IRAK-4) is a, serine/threonine kinase that plays an essential role in signal, transduction by Toll/IL-1 receptors (TIRs). Here, we report the crystal, structures of the phosphorylated human IRAK-4 kinase domain in complex, with a potent inhibitor and with staurosporine to 2.0 and 2.2 A, respectively. The structures reveal that IRAK-4 has a unique tyrosine, gatekeeper residue that interacts with the conserved glutamate from helix, alphaC. Consequently, helix alphaC is "pulled in" to maintain the active, orientation, and the usual pre-existing hydrophobic back pocket of the, ATP-binding site is abolished. The peptide substrate-binding site is more, open when compared with other protein kinases due to a marked movement of, helix alphaG. The pattern of phosphate ligand interactions in the, activation loop bears a close resemblance to that of a tyrosine kinase., Our results provide insights into IRAK-4 function and the design of, selective inhibitors. | ||
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| - | ==Disease== | ||
| - | Known diseases associated with this structure: IRAK4 deficiency OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=606883 606883]], Invasive pneumococcal disease, recurrent isolated, 1 OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=606883 606883]] | ||
==About this Structure== | ==About this Structure== | ||
| - | 2NRY is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with STU as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/Non-specific_serine/threonine_protein_kinase Non-specific serine/threonine protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.1 2.7.11.1] Full crystallographic information is available from [http:// | + | 2NRY is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with <scene name='pdbligand=STU:'>STU</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/Non-specific_serine/threonine_protein_kinase Non-specific serine/threonine protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.1 2.7.11.1] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NRY OCA]. |
==Reference== | ==Reference== | ||
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[[Category: staurosporine]] | [[Category: staurosporine]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jan 23 15:24:26 2008'' |
Revision as of 13:24, 23 January 2008
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Crystal structure of IRAK-4
Overview
Interleukin-1 (IL-1) receptor-associated kinase-4 (IRAK-4) is a, serine/threonine kinase that plays an essential role in signal, transduction by Toll/IL-1 receptors (TIRs). Here, we report the crystal, structures of the phosphorylated human IRAK-4 kinase domain in complex, with a potent inhibitor and with staurosporine to 2.0 and 2.2 A, respectively. The structures reveal that IRAK-4 has a unique tyrosine, gatekeeper residue that interacts with the conserved glutamate from helix, alphaC. Consequently, helix alphaC is "pulled in" to maintain the active, orientation, and the usual pre-existing hydrophobic back pocket of the, ATP-binding site is abolished. The peptide substrate-binding site is more, open when compared with other protein kinases due to a marked movement of, helix alphaG. The pattern of phosphate ligand interactions in the, activation loop bears a close resemblance to that of a tyrosine kinase., Our results provide insights into IRAK-4 function and the design of, selective inhibitors.
About this Structure
2NRY is a Single protein structure of sequence from Homo sapiens with as ligand. Active as Non-specific serine/threonine protein kinase, with EC number 2.7.11.1 Full crystallographic information is available from OCA.
Reference
Crystal structures of IRAK-4 kinase in complex with inhibitors: a serine/threonine kinase with tyrosine as a gatekeeper., Wang Z, Liu J, Sudom A, Ayres M, Li S, Wesche H, Powers JP, Walker NP, Structure. 2006 Dec;14(12):1835-44. PMID:17161373
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