This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

4jx7

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Current revision

Crystal structure of Pim1 kinase in complex with inhibitor 2-[(trans-4-aminocyclohexyl)amino]-4-{[3-(trifluoromethyl)phenyl]amino}pyrido[4,3-d]pyrimidin-5(6H)-one

Structural highlights

4jx7 is a 2 chain structure with sequence from Escherichia coli and Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.4Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

PIM1_HUMAN Proto-oncogene with serine/threonine kinase activity involved in cell survival and cell proliferation and thus providing a selective advantage in tumorigenesis. Exerts its oncogenic activity through: the regulation of MYC transcriptional activity, the regulation of cell cycle progression and by phosphorylation and inhibition of proapoptotic proteins (BAD, MAP3K5, FOXO3). Phosphorylation of MYC leads to an increase of MYC protein stability and thereby an increase of transcriptional activity. The stabilization of MYC exerted by PIM1 might explain partly the strong synergism between these two oncogenes in tumorigenesis. Mediates survival signaling through phosphorylation of BAD, which induces release of the anti-apoptotic protein Bcl-X(L)/BCL2L1. Phosphorylation of MAP3K5, an other proapoptotic protein, by PIM1, significantly decreases MAP3K5 kinase activity and inhibits MAP3K5-mediated phosphorylation of JNK and JNK/p38MAPK subsequently reducing caspase-3 activation and cell apoptosis. Stimulates cell cycle progression at the G1-S and G2-M transitions by phosphorylation of CDC25A and CDC25C. Phosphorylation of CDKN1A, a regulator of cell cycle progression at G1, results in the relocation of CDKN1A to the cytoplasm and enhanced CDKN1A protein stability. Promote cell cycle progression and tumorigenesis by down-regulating expression of a regulator of cell cycle progression, CDKN1B, at both transcriptional and post-translational levels. Phosphorylation of CDKN1B,induces 14-3-3-proteins binding, nuclear export and proteasome-dependent degradation. May affect the structure or silencing of chromatin by phosphorylating HP1 gamma/CBX3. Acts also as a regulator of homing and migration of bone marrow cells involving functional interaction with the CXCL12-CXCR4 signaling axis.^[1] ^[2] ^[3] ^[4] ^[5] ^[6] ^[7]

Publication Abstract from PubMed

Human Pim1 kinase is a serine/threonine protein kinase that plays important biological roles in cell survival, apoptosis, proliferation, and differentiation. Moreover, Pim1 is up-regulated in various hematopoietic malignancies and solid tumors. Thus, Pim1 is an attractive target for cancer therapeutics, and there has been growing interest in developing small molecule inhibitors for Pim1. Here, we describe the crystal structure of Pim1 in complex with a newly developed pyrido[4,3-d]pyrimidine-derivative inhibitor (SKI-O-068). Our inhibitor exhibits a half maximum inhibitory concentration (IC50) of 123 (+/-14) nM and has an unusual binding mode in complex with Pim1 kinase. The interactions between SKI-O-068 and the Pim1 active site pocket residue are different from those of other scaffold inhibitor-bound structures. The binding mode analysis suggests that the SKI-O-068 inhibitor can be improved by introducing functional groups that facilitate direct interaction with Lys67, which aid in the design of an optimized inhibitor.

Crystal structure of pim1 kinase in complex with a pyrido[4,3-d]pyrimidine derivative suggests a unique binding mode.,Lee SJ, Han BG, Cho JW, Choi JS, Lee J, Song HJ, Koh JS, Lee BI PLoS One. 2013 Jul 31;8(7):e70358. doi: 10.1371/journal.pone.0070358. Print 2013. PMID:23936194^[8]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Saris CJ, Domen J, Berns A. The pim-1 oncogene encodes two related protein-serine/threonine kinases by alternative initiation at AUG and CUG. EMBO J. 1991 Mar;10(3):655-64. PMID:1825810
↑ Koike N, Maita H, Taira T, Ariga H, Iguchi-Ariga SM. Identification of heterochromatin protein 1 (HP1) as a phosphorylation target by Pim-1 kinase and the effect of phosphorylation on the transcriptional repression function of HP1(1). FEBS Lett. 2000 Feb 4;467(1):17-21. PMID:10664448
↑ Wang Z, Bhattacharya N, Mixter PF, Wei W, Sedivy J, Magnuson NS. Phosphorylation of the cell cycle inhibitor p21Cip1/WAF1 by Pim-1 kinase. Biochim Biophys Acta. 2002 Dec 16;1593(1):45-55. PMID:12431783
↑ Stout BA, Bates ME, Liu LY, Farrington NN, Bertics PJ. IL-5 and granulocyte-macrophage colony-stimulating factor activate STAT3 and STAT5 and promote Pim-1 and cyclin D3 protein expression in human eosinophils. J Immunol. 2004 Nov 15;173(10):6409-17. PMID:15528381
↑ Bachmann M, Kosan C, Xing PX, Montenarh M, Hoffmann I, Moroy T. The oncogenic serine/threonine kinase Pim-1 directly phosphorylates and activates the G2/M specific phosphatase Cdc25C. Int J Biochem Cell Biol. 2006 Mar;38(3):430-43. Epub 2005 Nov 8. PMID:16356754 doi:10.1016/j.biocel.2005.10.010
↑ Morishita D, Katayama R, Sekimizu K, Tsuruo T, Fujita N. Pim kinases promote cell cycle progression by phosphorylating and down-regulating p27Kip1 at the transcriptional and posttranscriptional levels. Cancer Res. 2008 Jul 1;68(13):5076-85. doi: 10.1158/0008-5472.CAN-08-0634. PMID:18593906 doi:10.1158/0008-5472.CAN-08-0634
↑ Gu JJ, Wang Z, Reeves R, Magnuson NS. PIM1 phosphorylates and negatively regulates ASK1-mediated apoptosis. Oncogene. 2009 Dec 3;28(48):4261-71. doi: 10.1038/onc.2009.276. Epub 2009 Sep 14. PMID:19749799 doi:10.1038/onc.2009.276
↑ Lee SJ, Han BG, Cho JW, Choi JS, Lee J, Song HJ, Koh JS, Lee BI. Crystal structure of pim1 kinase in complex with a pyrido[4,3-d]pyrimidine derivative suggests a unique binding mode. PLoS One. 2013 Jul 31;8(7):e70358. doi: 10.1371/journal.pone.0070358. Print 2013. PMID:23936194 doi:10.1371/journal.pone.0070358

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4jx7"

@@ Line 4: / Line 4: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[4jx7]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4JX7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4JX7 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1N6:2-[(TRANS-4-AMINOCYCLOHEXYL)AMINO]-4-{[3-(TRIFLUOROMETHYL)PHENYL]AMINO}PYRIDO[4,3-D]PYRIMIDIN-5(6H)-ONE'>1N6</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1N6:2-[(TRANS-4-AMINOCYCLOHEXYL)AMINO]-4-{[3-(TRIFLUOROMETHYL)PHENYL]AMINO}PYRIDO[4,3-D]PYRIMIDIN-5(6H)-ONE'>1N6</scene></td></tr>
 <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4jx7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4jx7 OCA], [https://pdbe.org/4jx7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4jx7 RCSB], [https://www.ebi.ac.uk/pdbsum/4jx7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4jx7 ProSAT]</span></td></tr>
 </table>

4jx7

From Proteopedia

Current revision

Crystal structure of Pim1 kinase in complex with inhibitor 2-[(trans-4-aminocyclohexyl)amino]-4-{[3-(trifluoromethyl)phenyl]amino}pyrido[4,3-d]pyrimidin-5(6H)-one

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox