4xuf

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==Crystal structure of the FLT3 kinase domain bound to the inhibitor quizartinib (AC220)==
==Crystal structure of the FLT3 kinase domain bound to the inhibitor quizartinib (AC220)==
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<StructureSection load='4xuf' size='340' side='right' caption='[[4xuf]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
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<StructureSection load='4xuf' size='340' side='right'caption='[[4xuf]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4xuf]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XUF OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4XUF FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4xuf]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XUF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4XUF FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=P30:1-(5-TERT-BUTYL-1,2-OXAZOL-3-YL)-3-(4-{7-[2-(MORPHOLIN-4-YL)ETHOXY]IMIDAZO[2,1-B][1,3]BENZOTHIAZOL-2-YL}PHENYL)UREA'>P30</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.2&#8491;</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Receptor_protein-tyrosine_kinase Receptor protein-tyrosine kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.10.1 2.7.10.1] </span></td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=P30:1-(5-TERT-BUTYL-1,2-OXAZOL-3-YL)-3-(4-{7-[2-(MORPHOLIN-4-YL)ETHOXY]IMIDAZO[2,1-B][1,3]BENZOTHIAZOL-2-YL}PHENYL)UREA'>P30</scene></td></tr>
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<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=4xuf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xuf OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4xuf RCSB], [http://www.ebi.ac.uk/pdbsum/4xuf PDBsum]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4xuf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xuf OCA], [https://pdbe.org/4xuf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4xuf RCSB], [https://www.ebi.ac.uk/pdbsum/4xuf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4xuf ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
== Disease ==
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[[http://www.uniprot.org/uniprot/FLT3_HUMAN FLT3_HUMAN]] Defects in FLT3 are a cause of acute myelogenous leukemia (AML) [MIM:[http://omim.org/entry/601626 601626]]. AML is a malignant disease in which hematopoietic precursors are arrested in an early stage of development. Note=Somatic mutations that lead to constitutive activation of FLT3 are frequent in AML patients. These mutations fall into two classes, the most common being in-frame internal tandem duplications of variable length in the juxtamembrane region that disrupt the normal regulation of the kinase activity. Likewise, point mutations in the activation loop of the kinase domain can result in a constitutively activated kinase.<ref>PMID:11090077</ref> <ref>PMID:16266983</ref> <ref>PMID:14504097</ref> <ref>PMID:9737679</ref> <ref>PMID:18305215</ref> <ref>PMID:11290608</ref> <ref>PMID:8946930</ref> <ref>PMID:11442493</ref>
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[https://www.uniprot.org/uniprot/FLT3_HUMAN FLT3_HUMAN] Defects in FLT3 are a cause of acute myelogenous leukemia (AML) [MIM:[https://omim.org/entry/601626 601626]. AML is a malignant disease in which hematopoietic precursors are arrested in an early stage of development. Note=Somatic mutations that lead to constitutive activation of FLT3 are frequent in AML patients. These mutations fall into two classes, the most common being in-frame internal tandem duplications of variable length in the juxtamembrane region that disrupt the normal regulation of the kinase activity. Likewise, point mutations in the activation loop of the kinase domain can result in a constitutively activated kinase.<ref>PMID:11090077</ref> <ref>PMID:16266983</ref> <ref>PMID:14504097</ref> <ref>PMID:9737679</ref> <ref>PMID:18305215</ref> <ref>PMID:11290608</ref> <ref>PMID:8946930</ref> <ref>PMID:11442493</ref>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/FLT3_HUMAN FLT3_HUMAN]] Tyrosine-protein kinase that acts as cell-surface receptor for the cytokine FLT3LG and regulates differentiation, proliferation and survival of hematopoietic progenitor cells and of dendritic cells. Promotes phosphorylation of SHC1 and AKT1, and activation of the downstream effector MTOR. Promotes activation of RAS signaling and phosphorylation of downstream kinases, including MAPK1/ERK2 and/or MAPK3/ERK1. Promotes phosphorylation of FES, FER, PTPN6/SHP, PTPN11/SHP-2, PLCG1, and STAT5A and/or STAT5B. Activation of wild-type FLT3 causes only marginal activation of STAT5A or STAT5B. Mutations that cause constitutive kinase activity promote cell proliferation and resistance to apoptosis via the activation of multiple signaling pathways.<ref>PMID:7507245</ref> <ref>PMID:10080542</ref> <ref>PMID:11090077</ref> <ref>PMID:16266983</ref> <ref>PMID:16627759</ref> <ref>PMID:18490735</ref> <ref>PMID:20111072</ref> <ref>PMID:21067588</ref> <ref>PMID:21262971</ref> <ref>PMID:21516120</ref> <ref>PMID:14504097</ref>
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[https://www.uniprot.org/uniprot/FLT3_HUMAN FLT3_HUMAN] Tyrosine-protein kinase that acts as cell-surface receptor for the cytokine FLT3LG and regulates differentiation, proliferation and survival of hematopoietic progenitor cells and of dendritic cells. Promotes phosphorylation of SHC1 and AKT1, and activation of the downstream effector MTOR. Promotes activation of RAS signaling and phosphorylation of downstream kinases, including MAPK1/ERK2 and/or MAPK3/ERK1. Promotes phosphorylation of FES, FER, PTPN6/SHP, PTPN11/SHP-2, PLCG1, and STAT5A and/or STAT5B. Activation of wild-type FLT3 causes only marginal activation of STAT5A or STAT5B. Mutations that cause constitutive kinase activity promote cell proliferation and resistance to apoptosis via the activation of multiple signaling pathways.<ref>PMID:7507245</ref> <ref>PMID:10080542</ref> <ref>PMID:11090077</ref> <ref>PMID:16266983</ref> <ref>PMID:16627759</ref> <ref>PMID:18490735</ref> <ref>PMID:20111072</ref> <ref>PMID:21067588</ref> <ref>PMID:21262971</ref> <ref>PMID:21516120</ref> <ref>PMID:14504097</ref>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
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<div class="pdbe-citations 4xuf" style="background-color:#fffaf0;"></div>
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==See Also==
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*[[Tyrosine kinase 3D structures|Tyrosine kinase 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Receptor protein-tyrosine kinase]]
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[[Category: Homo sapiens]]
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[[Category: Barros, T]]
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[[Category: Large Structures]]
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[[Category: Fujimura, E]]
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[[Category: Barros T]]
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[[Category: Kuriyan, J]]
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[[Category: Fujimura E]]
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[[Category: Wang, Q]]
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[[Category: Kuriyan J]]
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[[Category: Zorn, J A]]
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[[Category: Wang Q]]
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[[Category: Ac220]]
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[[Category: Zorn JA]]
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[[Category: Flt3]]
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[[Category: Quizartinib]]
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[[Category: Receptor tyrosine kinase]]
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[[Category: Transferase-transferase inhibitor complex]]
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Current revision

Crystal structure of the FLT3 kinase domain bound to the inhibitor quizartinib (AC220)

PDB ID 4xuf

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