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3wbl

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{{STRUCTURE_3wbl| PDB=3wbl | SCENE= }}
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==Crystal structure of CDK2 in complex with pyrazolopyrimidine inhibitor==
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===Crystal structure of CDK2 in complex with pyrazolopyrimidine inhibitor===
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<StructureSection load='3wbl' size='340' side='right' caption='[[3wbl]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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{{ABSTRACT_PUBMED_24121337}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3wbl]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WBL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3WBL 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=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=PDY:N~7~-(4-ETHOXYPHENYL)-6-METHYL-N~5~-[(3S)-PIPERIDIN-3-YL]PYRAZOLO[1,5-A]PYRIMIDINE-5,7-DIAMINE'>PDY</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3a2c|3a2c]]</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CDK2, CDKN2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</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/Cyclin-dependent_kinase Cyclin-dependent kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.22 2.7.11.22] </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=3wbl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wbl OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3wbl RCSB], [http://www.ebi.ac.uk/pdbsum/3wbl PDBsum]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Mitogen-activated protein kinase-activated protein kinase 2 (MK2 or MAPKAP-K2) is a Ser/Thr kinase from the p38 mitogen-activated protein kinase signalling pathway and plays an important role in inflammatory diseases. The crystal structure of the MK2-TEI-I01800 complex has been reported; its Gly-rich loop was found to form an alpha-helix, not a beta-sheet as has been observed for other Ser/Thr kinases. TEI-I01800 is 177-fold selective against MK2 compared with CDK2; in order to understand the inhibitory mechanism of TEI-I01800, the cyclin-dependent kinase 2 (CDK2) complex structure with TEI-I01800 was determined at 2.0 A resolution. Interestingly, the Gly-rich loop of CDK2 formed a beta-sheet that was different from that of MK2. In MK2, TEI-I01800 changed the secondary structure of the Gly-rich loop from a beta-sheet to an alpha-helix by collision between Leu70 and a p-ethoxyphenyl group at the 7-position and bound to MK2. However, for CDK2, TEI-I01800 bound to CDK2 without this structural change and lost the interaction with the substituent at the 7-position. In summary, the results of this study suggest that the reason for the selectivity of TEI-I01800 is the favourable conformation of TEI-I01800 itself, making it suitable for binding to the alpha-form MK2.
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==Function==
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Crystal structure of human cyclin-dependent kinase-2 complex with MK2 inhibitor TEI-I01800: insight into the selectivity.,Fujino A, Fukushima K, Kubota T, Kosugi T, Takimoto-Kamimura M J Synchrotron Radiat. 2013 Nov;20(Pt 6):905-9. doi: 10.1107/S0909049513020736., Epub 2013 Sep 26. PMID:24121337<ref>PMID:24121337</ref>
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[[http://www.uniprot.org/uniprot/CDK2_HUMAN CDK2_HUMAN]] Serine/threonine-protein kinase involved in the control of the cell cycle; essential for meiosis, but dispensable for mitosis. Phosphorylates CTNNB1, USP37, p53/TP53, NPM1, CDK7, RB1, BRCA2, MYC, NPAT, EZH2. Interacts with cyclins A, B1, B3, D, or E. Triggers duplication of centrosomes and DNA. Acts at the G1-S transition to promote the E2F transcriptional program and the initiation of DNA synthesis, and modulates G2 progression; controls the timing of entry into mitosis/meiosis by controlling the subsequent activation of cyclin B/CDK1 by phosphorylation, and coordinates the activation of cyclin B/CDK1 at the centrosome and in the nucleus. Crucial role in orchestrating a fine balance between cellular proliferation, cell death, and DNA repair in human embryonic stem cells (hESCs). Activity of CDK2 is maximal during S phase and G2; activated by interaction with cyclin E during the early stages of DNA synthesis to permit G1-S transition, and subsequently activated by cyclin A2 (cyclin A1 in germ cells) during the late stages of DNA replication to drive the transition from S phase to mitosis, the G2 phase. EZH2 phosphorylation promotes H3K27me3 maintenance and epigenetic gene silencing. Phosphorylates CABLES1 (By similarity). Cyclin E/CDK2 prevents oxidative stress-mediated Ras-induced senescence by phosphorylating MYC. Involved in G1-S phase DNA damage checkpoint that prevents cells with damaged DNA from initiating mitosis; regulates homologous recombination-dependent repair by phosphorylating BRCA2, this phosphorylation is low in S phase when recombination is active, but increases as cells progress towards mitosis. In response to DNA damage, double-strand break repair by homologous recombination a reduction of CDK2-mediated BRCA2 phosphorylation. Phosphorylation of RB1 disturbs its interaction with E2F1. NPM1 phosphorylation by cyclin E/CDK2 promotes its dissociates from unduplicated centrosomes, thus initiating centrosome duplication. Cyclin E/CDK2-mediated phosphorylation of NPAT at G1-S transition and until prophase stimulates the NPAT-mediated activation of histone gene transcription during S phase. Required for vitamin D-mediated growth inhibition by being itself inactivated. Involved in the nitric oxide- (NO) mediated signaling in a nitrosylation/activation-dependent manner. USP37 is activated by phosphorylation and thus triggers G1-S transition. CTNNB1 phosphorylation regulates insulin internalization.<ref>PMID:10499802</ref> <ref>PMID:11051553</ref> <ref>PMID:10995386</ref> <ref>PMID:10995387</ref> <ref>PMID:10884347</ref> <ref>PMID:11113184</ref> <ref>PMID:15800615</ref> <ref>PMID:18372919</ref> <ref>PMID:20147522</ref> <ref>PMID:20079829</ref> <ref>PMID:20935635</ref> <ref>PMID:20195506</ref> <ref>PMID:19966300</ref> <ref>PMID:21262353</ref> <ref>PMID:21596315</ref> <ref>PMID:21319273</ref> <ref>PMID:17495531</ref>
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[3wbl]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WBL OCA].
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</div>
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==Reference==
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==See Also==
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<ref group="xtra">PMID:024121337</ref><references group="xtra"/><references/>
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*[[Cell division protein kinase 2|Cell division protein kinase 2]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Cyclin-dependent kinase]]
[[Category: Cyclin-dependent kinase]]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Fujino, A.]]
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[[Category: Fujino, A]]
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[[Category: Fukushima, K.]]
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[[Category: Fukushima, K]]
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[[Category: Kosugi, T.]]
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[[Category: Kosugi, T]]
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[[Category: Kubota, T.]]
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[[Category: Kubota, T]]
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[[Category: Takimoto-Kamimura, M.]]
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[[Category: Takimoto-Kamimura, M]]
[[Category: Binding site]]
[[Category: Binding site]]
[[Category: Cyclin-dependent kinase 2]]
[[Category: Cyclin-dependent kinase 2]]

Revision as of 09:58, 21 December 2014

Crystal structure of CDK2 in complex with pyrazolopyrimidine inhibitor

3wbl, resolution 2.00Å

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