4e4x

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==Crystal Structure of B-Raf Kinase Domain in Complex with a Dihydropyrido[2,3-d]pyrimidinone-based Inhibitor==
==Crystal Structure of B-Raf Kinase Domain in Complex with a Dihydropyrido[2,3-d]pyrimidinone-based Inhibitor==
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<StructureSection load='4e4x' size='340' side='right' caption='[[4e4x]], [[Resolution|resolution]] 3.60&Aring;' scene=''>
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<StructureSection load='4e4x' size='340' side='right'caption='[[4e4x]], [[Resolution|resolution]] 3.60&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4e4x]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4E4X OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4E4X FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4e4x]] 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=4E4X OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4E4X 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=T1Q:N-(2,4-DIFLUORO-3-{2-[(3-HYDROXYPROPYL)AMINO]-8-METHYL-7-OXO-7,8-DIHYDROPYRIDO[2,3-D]PYRIMIDIN-6-YL}PHENYL)PROPANE-1-SULFONAMIDE'>T1Q</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]] 3.6&#8491;</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BRAF, BRAF1, RAFB1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=T1Q:N-(2,4-DIFLUORO-3-{2-[(3-HYDROXYPROPYL)AMINO]-8-METHYL-7-OXO-7,8-DIHYDROPYRIDO[2,3-D]PYRIMIDIN-6-YL}PHENYL)PROPANE-1-SULFONAMIDE'>T1Q</scene></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/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] </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=4e4x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4e4x OCA], [https://pdbe.org/4e4x PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4e4x RCSB], [https://www.ebi.ac.uk/pdbsum/4e4x PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4e4x ProSAT]</span></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=4e4x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4e4x OCA], [http://pdbe.org/4e4x PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4e4x RCSB], [http://www.ebi.ac.uk/pdbsum/4e4x PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4e4x ProSAT]</span></td></tr>
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</table>
</table>
== Disease ==
== Disease ==
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[[http://www.uniprot.org/uniprot/BRAF_HUMAN BRAF_HUMAN]] Note=Defects in BRAF are found in a wide range of cancers.<ref>PMID:18974108</ref> Defects in BRAF may be a cause of colorectal cancer (CRC) [MIM:[http://omim.org/entry/114500 114500]].<ref>PMID:18974108</ref> Defects in BRAF are involved in lung cancer (LNCR) [MIM:[http://omim.org/entry/211980 211980]]. LNCR is a common malignancy affecting tissues of the lung. The most common form of lung cancer is non-small cell lung cancer (NSCLC) that can be divided into 3 major histologic subtypes: squamous cell carcinoma, adenocarcinoma, and large cell lung cancer. NSCLC is often diagnosed at an advanced stage and has a poor prognosis.<ref>PMID:18974108</ref> <ref>PMID:12460919</ref> Defects in BRAF are involved in non-Hodgkin lymphoma (NHL) [MIM:[http://omim.org/entry/605027 605027]]. NHL is a cancer that starts in cells of the lymph system, which is part of the body's immune system. NHLs can occur at any age and are often marked by enlarged lymph nodes, fever and weight loss.<ref>PMID:18974108</ref> <ref>PMID:14612909</ref> Defects in BRAF are a cause of cardiofaciocutaneous syndrome (CFC syndrome) [MIM:[http://omim.org/entry/115150 115150]]; also known as cardio-facio-cutaneous syndrome. CFC syndrome is characterized by a distinctive facial appearance, heart defects and mental retardation. Heart defects include pulmonic stenosis, atrial septal defects and hypertrophic cardiomyopathy. Some affected individuals present with ectodermal abnormalities such as sparse, friable hair, hyperkeratotic skin lesions and a generalized ichthyosis-like condition. Typical facial features are similar to Noonan syndrome. They include high forehead with bitemporal constriction, hypoplastic supraorbital ridges, downslanting palpebral fissures, a depressed nasal bridge, and posteriorly angulated ears with prominent helices. The inheritance of CFC syndrome is autosomal dominant.<ref>PMID:18974108</ref> Defects in BRAF are the cause of Noonan syndrome type 7 (NS7) [MIM:[http://omim.org/entry/613706 613706]]. Noonan syndrome is a disorder characterized by facial dysmorphic features such as hypertelorism, a downward eyeslant and low-set posteriorly rotated ears. Other features can include short stature, a short neck with webbing or redundancy of skin, cardiac anomalies, deafness, motor delay and variable intellectual deficits.<ref>PMID:18974108</ref> <ref>PMID:19206169</ref> Defects in BRAF are the cause of LEOPARD syndrome type 3 (LEOPARD3) [MIM:[http://omim.org/entry/613707 613707]]. LEOPARD3 is a disorder characterized by lentigines, electrocardiographic conduction abnormalities, ocular hypertelorism, pulmonic stenosis, abnormalities of genitalia, retardation of growth, and sensorineural deafness.<ref>PMID:18974108</ref> <ref>PMID:19206169</ref> Note=A chromosomal aberration involving BRAF is found in pilocytic astrocytomas. A tandem duplication of 2 Mb at 7q34 leads to the expression of a KIAA1549-BRAF fusion protein with a constitutive kinase activity and inducing cell transformation.<ref>PMID:18974108</ref>
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[https://www.uniprot.org/uniprot/BRAF_HUMAN BRAF_HUMAN] Note=Defects in BRAF are found in a wide range of cancers.<ref>PMID:18974108</ref> Defects in BRAF may be a cause of colorectal cancer (CRC) [MIM:[https://omim.org/entry/114500 114500].<ref>PMID:18974108</ref> Defects in BRAF are involved in lung cancer (LNCR) [MIM:[https://omim.org/entry/211980 211980]. LNCR is a common malignancy affecting tissues of the lung. The most common form of lung cancer is non-small cell lung cancer (NSCLC) that can be divided into 3 major histologic subtypes: squamous cell carcinoma, adenocarcinoma, and large cell lung cancer. NSCLC is often diagnosed at an advanced stage and has a poor prognosis.<ref>PMID:18974108</ref> <ref>PMID:12460919</ref> Defects in BRAF are involved in non-Hodgkin lymphoma (NHL) [MIM:[https://omim.org/entry/605027 605027]. NHL is a cancer that starts in cells of the lymph system, which is part of the body's immune system. NHLs can occur at any age and are often marked by enlarged lymph nodes, fever and weight loss.<ref>PMID:18974108</ref> <ref>PMID:14612909</ref> Defects in BRAF are a cause of cardiofaciocutaneous syndrome (CFC syndrome) [MIM:[https://omim.org/entry/115150 115150]; also known as cardio-facio-cutaneous syndrome. CFC syndrome is characterized by a distinctive facial appearance, heart defects and mental retardation. Heart defects include pulmonic stenosis, atrial septal defects and hypertrophic cardiomyopathy. Some affected individuals present with ectodermal abnormalities such as sparse, friable hair, hyperkeratotic skin lesions and a generalized ichthyosis-like condition. Typical facial features are similar to Noonan syndrome. They include high forehead with bitemporal constriction, hypoplastic supraorbital ridges, downslanting palpebral fissures, a depressed nasal bridge, and posteriorly angulated ears with prominent helices. The inheritance of CFC syndrome is autosomal dominant.<ref>PMID:18974108</ref> Defects in BRAF are the cause of Noonan syndrome type 7 (NS7) [MIM:[https://omim.org/entry/613706 613706]. Noonan syndrome is a disorder characterized by facial dysmorphic features such as hypertelorism, a downward eyeslant and low-set posteriorly rotated ears. Other features can include short stature, a short neck with webbing or redundancy of skin, cardiac anomalies, deafness, motor delay and variable intellectual deficits.<ref>PMID:18974108</ref> <ref>PMID:19206169</ref> Defects in BRAF are the cause of LEOPARD syndrome type 3 (LEOPARD3) [MIM:[https://omim.org/entry/613707 613707]. LEOPARD3 is a disorder characterized by lentigines, electrocardiographic conduction abnormalities, ocular hypertelorism, pulmonic stenosis, abnormalities of genitalia, retardation of growth, and sensorineural deafness.<ref>PMID:18974108</ref> <ref>PMID:19206169</ref> Note=A chromosomal aberration involving BRAF is found in pilocytic astrocytomas. A tandem duplication of 2 Mb at 7q34 leads to the expression of a KIAA1549-BRAF fusion protein with a constitutive kinase activity and inducing cell transformation.<ref>PMID:18974108</ref>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/BRAF_HUMAN BRAF_HUMAN]] Involved in the transduction of mitogenic signals from the cell membrane to the nucleus. May play a role in the postsynaptic responses of hippocampal neuron.
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[https://www.uniprot.org/uniprot/BRAF_HUMAN BRAF_HUMAN] Involved in the transduction of mitogenic signals from the cell membrane to the nucleus. May play a role in the postsynaptic responses of hippocampal neuron.
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Herein we describe the discovery of a novel series of ATP competitive B-Raf inhibitors via structure based drug design (SBDD). These pyridopyrimidin-7-one based inhibitors exhibit both excellent cellular potency and striking B-Raf selectivity. Optimization led to the identification of compound 17, a potent, selective and orally available agent with excellent pharmacokinetic properties and robust tumor growth inhibition in xenograft studies.
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The discovery of potent and selective pyridopyrimidin-7-one based inhibitors of B-Raf(V600E) kinase.,Ren L, Ahrendt KA, Grina J, Laird ER, Buckmelter AJ, Hansen JD, Newhouse B, Moreno D, Wenglowsky S, Dinkel V, Gloor SL, Hastings G, Rana S, Rasor K, Risom T, Sturgis HL, Voegtli WC, Mathieu S Bioorg Med Chem Lett. 2012 May 15;22(10):3387-91. Epub 2012 Apr 10. PMID:22534450<ref>PMID:22534450</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 4e4x" style="background-color:#fffaf0;"></div>
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==See Also==
==See Also==
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*[[Serine/threonine protein kinase|Serine/threonine protein kinase]]
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*[[Serine/threonine protein kinase 3D structures|Serine/threonine protein kinase 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Human]]
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[[Category: Homo sapiens]]
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[[Category: Non-specific serine/threonine protein kinase]]
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[[Category: Large Structures]]
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[[Category: Sturgis, H L]]
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[[Category: Sturgis HL]]
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[[Category: Voegtli, W C]]
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[[Category: Voegtli WC]]
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[[Category: Kinase]]
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[[Category: Transferase-transferase inhibitor complex]]
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Current revision

Crystal Structure of B-Raf Kinase Domain in Complex with a Dihydropyrido[2,3-d]pyrimidinone-based Inhibitor

PDB ID 4e4x

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