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[[Image:3le6.jpg|left|200px]]


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==The structure of cyclin dependent kinase 2 (CKD2) with a pyrazolobenzodiazepine inhibitor==
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<StructureSection load='3le6' size='340' side='right'caption='[[3le6]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3le6]] is a 1 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=3LE6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3LE6 FirstGlance]. <br>
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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]] 2&#8491;</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=2BZ:5-(2-CHLOROPHENYL)-3-METHYL-7-NITROPYRAZOLO[3,4-B][1,4]BENZODIAZEPINE'>2BZ</scene></td></tr>
{{STRUCTURE_3le6|  PDB=3le6  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3le6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3le6 OCA], [https://pdbe.org/3le6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3le6 RCSB], [https://www.ebi.ac.uk/pdbsum/3le6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3le6 ProSAT]</span></td></tr>
</table>
== Function ==
[https://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>  


===The structure of cyclin dependent kinase 2 (CKD2) with a pyrazolobenzodiazepine inhibitor===
==See Also==
 
*[[Cyclin-dependent kinase 3D structures|Cyclin-dependent kinase 3D structures]]
 
== References ==
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{{ABSTRACT_PUBMED_20832307}}
 
==About this Structure==
3LE6 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=3LE6 OCA].
 
==Reference==
<ref group="xtra">PMID:20832307</ref><references group="xtra"/>
[[Category: Cyclin-dependent kinase]]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Crowther, R L.]]
[[Category: Large Structures]]
[[Category: Kammlott, R U.]]
[[Category: Crowther RL]]
[[Category: Liu, J J.]]
[[Category: Kammlott RU]]
[[Category: Lukacs, C M.]]
[[Category: Liu JJ]]
[[Category: Swain, A.]]
[[Category: Lukacs CM]]
[[Category: Atp-binding]]
[[Category: Swain A]]
[[Category: Cell cycle]]
[[Category: Cell division]]
[[Category: Cyclin-dependent kinase 2 drug design]]
[[Category: Kinase]]
[[Category: Mitosis]]
[[Category: Nucleotide-binding]]
[[Category: Phosphoprotein]]
[[Category: Serine/threonine-protein kinase]]
[[Category: Transferase-transferase inhibitor complex]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Nov 18 00:49:33 2010''

Latest revision as of 08:46, 7 February 2024

The structure of cyclin dependent kinase 2 (CKD2) with a pyrazolobenzodiazepine inhibitor

3le6, resolution 2.00Å

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