5xpi

From Proteopedia

(Difference between revisions)

Revision as of 09:35, 18 July 2018

Structure of UHRF1 TTD in complex with NV01

Structural highlights

5xpi is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:	UHRF1, ICBP90, NP95, RNF106 (HUMAN)
Activity:	RING-type E3 ubiquitin transferase, with EC number 2.3.2.27
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[UHRF1_HUMAN] Note=Defects in UHRF1 may be a cause of cancers. Overexpressed in many different forms of human cancers, including bladder, breast, cervical, colorectal and prostate cancers, as well as pancreatic adenocarcinomas, rhabdomyosarcomas and gliomas. Plays an important role in the correlation of histone modification and gene silencing in cancer progression. Expression is associated with a poor prognosis in patients with various cancers, suggesting that it participates in cancer progression.

Function

[UHRF1_HUMAN] Multidomain protein that acts as a key epigenetic regulator by bridging DNA methylation and chromatin modification. Specifically recognizes and binds hemimethylated DNA at replication forks via its YDG domain and recruits DNMT1 methyltransferase to ensure faithful propagation of the DNA methylation patterns through DNA replication. In addition to its role in maintenance of DNA methylation, also plays a key role in chromatin modification: through its tudor-like regions and PHD-type zinc fingers, specifically recognizes and binds histone H3 trimethylated at 'Lys-9' (H3K9me3) and unmethylated at 'Arg-2' (H3R2me0), respectively, and recruits chromatin proteins. Enriched in pericentric heterochromatin where it recruits different chromatin modifiers required for this chromatin replication. Also localizes to euchromatic regions where it negatively regulates transcription possibly by impacting DNA methylation and histone modifications. Has E3 ubiquitin-protein ligase activity by mediating the ubiquitination of target proteins such as histone H3 and PML. It is still unclear how E3 ubiquitin-protein ligase activity is related to its role in chromatin in vivo. May be involved in DNA repair.^[1] ^[2] ^[3] ^[4] ^[5] ^[6] ^[7] ^[8] ^[9]

Publication Abstract from PubMed

Ubiquitin-like with PHD and RING finger domains 1 (UHRF1) is a multidomain protein that plays a critical role in maintaining DNA methylation patterns through concurrent recognition of hemimethylated DNA and histone marks by various domains, and recruitment of DNA methyltransferase 1 (DNMT1). UHRF1 is overexpressed in various cancers, including breast cancer. The tandem tudor domain (TTD) of UHRF1 specifically and tightly binds to histone H3 di- or trimethylated at lysine 9 (H3K9me2 or H3K9me3, respectively), and this binding is essential for UHRF1 function. We developed an H3K9me3 peptide displacement assay, which was used to screen a library of 44,000 compounds for small molecules that disrupt the UHRF1-H3K9me3 interaction. This screen resulted in the identification of NV01, which bound to UHRF1-TTD with a Kd value of 5 muM. The structure of UHRF1-TTD in complex with NV01 confirmed binding to the H3K9me3-binding pocket. Limited structure-based optimization of NV01 led to the discovery of NV03 (Kd of 2.4 muM). These well-characterized small-molecule antagonists of the UHRF1-H3K9me2/3 interaction could be valuable starting chemical matter for developing more potent and cell-active probes toward further characterizing UHRF1 function, with possible applications as anticancer therapeutics.

Discovery of Small-Molecule Antagonists of the H3K9me3 Binding to UHRF1 Tandem Tudor Domain.,Senisterra G, Zhu HY, Luo X, Zhang H, Xun G, Lu C, Xiao W, Hajian T, Loppnau P, Chau I, Li F, Allali-Hassani A, Atadja P, Oyang C, Li E, Brown PJ, Arrowsmith CH, Zhao K, Yu Z, Vedadi M SLAS Discov. 2018 Mar 1:2472555218766278. doi: 10.1177/2472555218766278. PMID:29562800^[10]

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

References

↑ Hopfner R, Mousli M, Jeltsch JM, Voulgaris A, Lutz Y, Marin C, Bellocq JP, Oudet P, Bronner C. ICBP90, a novel human CCAAT binding protein, involved in the regulation of topoisomerase IIalpha expression. Cancer Res. 2000 Jan 1;60(1):121-8. PMID:10646863
↑ Arima Y, Hirota T, Bronner C, Mousli M, Fujiwara T, Niwa S, Ishikawa H, Saya H. Down-regulation of nuclear protein ICBP90 by p53/p21Cip1/WAF1-dependent DNA-damage checkpoint signals contributes to cell cycle arrest at G1/S transition. Genes Cells. 2004 Feb;9(2):131-42. PMID:15009091
↑ Unoki M, Nishidate T, Nakamura Y. ICBP90, an E2F-1 target, recruits HDAC1 and binds to methyl-CpG through its SRA domain. Oncogene. 2004 Oct 7;23(46):7601-10. PMID:15361834 doi:10.1038/sj.onc.1208053
↑ Bostick M, Kim JK, Esteve PO, Clark A, Pradhan S, Jacobsen SE. UHRF1 plays a role in maintaining DNA methylation in mammalian cells. Science. 2007 Sep 21;317(5845):1760-4. Epub 2007 Aug 2. PMID:17673620 doi:10.1126/science.1147939
↑ Karagianni P, Amazit L, Qin J, Wong J. ICBP90, a novel methyl K9 H3 binding protein linking protein ubiquitination with heterochromatin formation. Mol Cell Biol. 2008 Jan;28(2):705-17. Epub 2007 Oct 29. PMID:17967883 doi:10.1128/MCB.01598-07
↑ Kim JK, Esteve PO, Jacobsen SE, Pradhan S. UHRF1 binds G9a and participates in p21 transcriptional regulation in mammalian cells. Nucleic Acids Res. 2009 Feb;37(2):493-505. doi: 10.1093/nar/gkn961. Epub 2008 Dec, 4. PMID:19056828 doi:10.1093/nar/gkn961
↑ Felle M, Joppien S, Nemeth A, Diermeier S, Thalhammer V, Dobner T, Kremmer E, Kappler R, Langst G. The USP7/Dnmt1 complex stimulates the DNA methylation activity of Dnmt1 and regulates the stability of UHRF1. Nucleic Acids Res. 2011 Oct;39(19):8355-65. doi: 10.1093/nar/gkr528. Epub 2011, Jul 10. PMID:21745816 doi:10.1093/nar/gkr528
↑ Guan D, Factor D, Liu Y, Wang Z, Kao HY. The epigenetic regulator UHRF1 promotes ubiquitination-mediated degradation of the tumor-suppressor protein promyelocytic leukemia protein. Oncogene. 2012 Sep 3. doi: 10.1038/onc.2012.406. PMID:22945642 doi:10.1038/onc.2012.406
↑ Rajakumara E, Wang Z, Ma H, Hu L, Chen H, Lin Y, Guo R, Wu F, Li H, Lan F, Shi YG, Xu Y, Patel DJ, Shi Y. PHD Finger Recognition of Unmodified Histone H3R2 Links UHRF1 to Regulation of Euchromatic Gene Expression. Mol Cell. 2011 Jul 22;43(2):275-84. PMID:21777816 doi:10.1016/j.molcel.2011.07.006
↑ Senisterra G, Zhu HY, Luo X, Zhang H, Xun G, Lu C, Xiao W, Hajian T, Loppnau P, Chau I, Li F, Allali-Hassani A, Atadja P, Oyang C, Li E, Brown PJ, Arrowsmith CH, Zhao K, Yu Z, Vedadi M. Discovery of Small-Molecule Antagonists of the H3K9me3 Binding to UHRF1 Tandem Tudor Domain. SLAS Discov. 2018 Mar 1:2472555218766278. doi: 10.1177/2472555218766278. PMID:29562800 doi:http://dx.doi.org/10.1177/2472555218766278

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5xpi"

@@ Line 3: / Line 3: @@
 <StructureSection load='5xpi' size='340' side='right' caption='[[5xpi]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5xpi]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5XPI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5XPI FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5xpi]] is a 1 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=5XPI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5XPI FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=8C3:N-[3-(diethylamino)propyl]-2-(12-methyl-9-oxidanylidene-5-thia-1,10,11-triazatricyclo[6.4.0.0^2,6]dodeca-2(6),3,7,11-tetraen-10-yl)ethanamide'>8C3</scene></td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">UHRF1, ICBP90, NP95, RNF106 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RING-type_E3_ubiquitin_transferase RING-type E3 ubiquitin transferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.2.27 2.3.2.27] </span></td></tr>
 <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=5xpi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5xpi OCA], [http://pdbe.org/5xpi PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5xpi RCSB], [http://www.ebi.ac.uk/pdbsum/5xpi PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5xpi ProSAT]</span></td></tr>
@@ Line 25: / Line 26: @@
 __TOC__
 </StructureSection>
+[[Category: Human]]
 [[Category: RING-type E3 ubiquitin transferase]]
 [[Category: Luo, X]]

5xpi

From Proteopedia

Revision as of 09:35, 18 July 2018

Structure of UHRF1 TTD in complex with NV01

Structural highlights

Disease

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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