2wpa

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{{Seed}}
 
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[[Image:2wpa.png|left|200px]]
 
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==Optimisation of 6,6-Dimethyl Pyrrolo 3,4-c pyrazoles: Identification of PHA-793887, a Potent CDK Inhibitor Suitable for Intravenous Dosing==
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The line below this paragraph, containing "STRUCTURE_2wpa", creates the "Structure Box" on the page.
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<StructureSection load='2wpa' size='340' side='right'caption='[[2wpa]], [[Resolution|resolution]] 2.51&Aring;' scene=''>
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[2wpa]] is a 4 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=2WPA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2WPA 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]] 2.51&#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=889:N-{6,6-DIMETHYL-5-[(1-METHYLPIPERIDIN-4-YL)CARBONYL]-1,4,5,6-TETRAHYDROPYRROLO[3,4-C]PYRAZOL-3-YL}-3-METHYLBUTANAMIDE'>889</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_2wpa| PDB=2wpa | SCENE= }}
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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=2wpa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2wpa OCA], [https://pdbe.org/2wpa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2wpa RCSB], [https://www.ebi.ac.uk/pdbsum/2wpa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2wpa ProSAT]</span></td></tr>
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</table>
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== Function ==
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[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>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/wp/2wpa_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2wpa ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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We have recently reported CDK inhibitors based on the 6-substituted pyrrolo[3,4-c]pyrazole core structure. Improvement of inhibitory potency against multiple CDKs, antiproliferative activity against cancer cell lines and optimization of the physico-chemical properties led to the identification of highly potent compounds. Compound 31 (PHA-793887) showed good efficacy in the human ovarian A2780, colon HCT-116 and pancreatic BX-PC3 carcinoma xenograft models and was well tolerated upon daily treatments by iv administration. It was identified as a drug candidate for clinical evaluation in patients with solid tumors.
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===OPTIMISATION OF 6,6-DIMETHYL PYRROLO 3,4-C PYRAZOLES: IDENTIFICATION OF PHA-793887, A POTENT CDK INHIBITOR SUITABLE FOR INTRAVENOUS DOSING===
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Optimization of 6,6-dimethyl pyrrolo[3,4-c]pyrazoles: Identification of PHA-793887, a potent CDK inhibitor suitable for intravenous dosing.,Brasca MG, Albanese C, Alzani R, Amici R, Avanzi N, Ballinari D, Bischoff J, Borghi D, Casale E, Croci V, Fiorentini F, Isacchi A, Mercurio C, Nesi M, Orsini P, Pastori W, Pesenti E, Pevarello P, Roussel P, Varasi M, Volpi D, Vulpetti A, Ciomei M Bioorg Med Chem. 2010 Mar 1;18(5):1844-53. Epub 2010 Jan 25. PMID:20153204<ref>PMID:20153204</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 2wpa" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_20153204}}, adds the Publication Abstract to the page
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*[[Cyclin 3D structures|Cyclin 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 20153204 is the PubMed ID number.
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*[[Cyclin-dependent kinase 3D structures|Cyclin-dependent kinase 3D structures]]
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== References ==
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{{ABSTRACT_PUBMED_20153204}}
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<references/>
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__TOC__
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==About this Structure==
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</StructureSection>
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2WPA is a 4 chains structure with sequences 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=2WPA OCA].
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==Reference==
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<ref group="xtra">PMID:20153204</ref><references group="xtra"/>
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[[Category: Homo sapiens]]
[[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: Albanese, C.]]
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[[Category: Albanese C]]
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[[Category: Alzani, R.]]
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[[Category: Alzani R]]
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[[Category: Amici, R.]]
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[[Category: Amici R]]
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[[Category: Avanzi, N.]]
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[[Category: Avanzi N]]
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[[Category: Ballinari, D.]]
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[[Category: Ballinari D]]
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[[Category: Bischoff, J.]]
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[[Category: Bischoff J]]
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[[Category: Borghi, D.]]
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[[Category: Borghi D]]
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[[Category: Brasca, M G.]]
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[[Category: Brasca MG]]
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[[Category: Casale, E.]]
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[[Category: Casale E]]
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[[Category: Ciomei, M.]]
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[[Category: Ciomei M]]
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[[Category: Croci, V.]]
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[[Category: Croci V]]
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[[Category: Fiorentini, F.]]
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[[Category: Fiorentini F]]
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[[Category: Isacchi, A.]]
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[[Category: Isacchi A]]
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[[Category: Mercurio, C.]]
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[[Category: Mercurio C]]
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[[Category: Nesi, M.]]
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[[Category: Nesi M]]
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[[Category: Orsini, P.]]
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[[Category: Orsini P]]
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[[Category: Pastori, W.]]
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[[Category: Pastori W]]
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[[Category: Pesenti, E.]]
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[[Category: Pesenti E]]
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[[Category: Pevarello, P.]]
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[[Category: Pevarello P]]
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[[Category: Roussel, P.]]
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[[Category: Roussel P]]
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[[Category: Varasi, M.]]
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[[Category: Varasi M]]
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[[Category: Volpi, D.]]
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[[Category: Volpi D]]
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[[Category: Vulpetti, A.]]
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[[Category: Vulpetti A]]
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[[Category: Atp-binding]]
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[[Category: Cell cycle]]
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[[Category: Cyclin]]
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[[Category: Mitosis]]
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[[Category: Phosphoprotein]]
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[[Category: Serine/threonine-protein 2 kinase]]
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[[Category: Transferase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Mar 24 08:25:42 2010''
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Current revision

Optimisation of 6,6-Dimethyl Pyrrolo 3,4-c pyrazoles: Identification of PHA-793887, a Potent CDK Inhibitor Suitable for Intravenous Dosing

PDB ID 2wpa

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