View source for 4wjn


==Crystal structure of SUMO1 in complex with phosphorylated PML==
<StructureSection load='4wjn' size='340' side='right'caption='[[4wjn]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4wjn]] is a 2 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=4WJN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4WJN FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.5&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</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=4wjn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4wjn OCA], [https://pdbe.org/4wjn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4wjn RCSB], [https://www.ebi.ac.uk/pdbsum/4wjn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4wjn ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/PML_HUMAN PML_HUMAN] Note=A chromosomal aberration involving PML may be a cause of acute promyelocytic leukemia (APL). Translocation t(15;17)(q21;q21) with RARA. The PML breakpoints (type A and type B) lie on either side of an alternatively spliced exon.<ref>PMID:1652369</ref> <ref>PMID:1720570</ref> 
== Function ==
[https://www.uniprot.org/uniprot/PML_HUMAN PML_HUMAN] Key component of PML nuclear bodies that regulate a large number of cellular processes by facilitating post-translational modification of target proteins, promoting protein-protein contacts, or by sequestering proteins. Functions as tumor suppressor. Required for normal, caspase-dependent apoptosis in response to DNA damage, FAS, TNF, or interferons. Plays a role in transcription regulation, DNA damage response, DNA repair and chromatin organization. Plays a role in processes regulated by retinoic acid, regulation of cell division, terminal differentiation of myeloid precursor cells and differentiation of neural progenitor cells. Required for normal immunity to microbial infections. Plays a role in antiviral response. In the cytoplasm, plays a role in TGFB1-dependent processes. Regulates p53/TP53 levels by inhibiting its ubiquitination and proteasomal degradation. Regulates activation of p53/TP53 via phosphorylation at 'Ser-20'. Sequesters MDM2 in the nucleolus after DNA damage, and thereby inhibits ubiquitination and degradation of p53/TP53. Regulates translation of HIF1A by sequestering MTOR, and thereby plays a role in neoangiogenesis and tumor vascularization. Regulates RB1 phosphorylation and activity. Required for normal development of the brain cortex during embryogenesis. Can sequester herpes virus and varicella virus proteins inside PML bodies, and thereby inhibit the formation of infectious viral particles. Regulates phosphorylation of ITPR3 and plays a role in the regulation of calcium homeostasis at the endoplasmic reticulum (By similarity). Regulates transcription activity of ELF4. Inhibits specifically the activity of the tetrameric form of PKM. Together with SATB1, involved in local chromatin-loop remodeling and gene expression regulation at the MHC-I locus. Regulates PTEN compartmentalization through the inhibition of USP7-mediated deubiquitination.<ref>PMID:9756909</ref> <ref>PMID:10610177</ref> <ref>PMID:10684855</ref> <ref>PMID:11025664</ref> <ref>PMID:11432836</ref> <ref>PMID:12402044</ref> <ref>PMID:12439746</ref> <ref>PMID:12810724</ref> <ref>PMID:14976184</ref> <ref>PMID:15195100</ref> <ref>PMID:15356634</ref> <ref>PMID:17030982</ref> <ref>PMID:18298799</ref> <ref>PMID:18716620</ref> <ref>PMID:17173041</ref> <ref>PMID:19567472</ref> <ref>PMID:21172801</ref> <ref>PMID:21304940</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
PML and several other proteins localizing in PML-nuclear bodies (PML-NB) contain phosphoSIMs (SUMO-interacting motifs), and phosphorylation of this motif plays a key role in their interaction with SUMO family proteins. We examined the role that phosphorylation plays in the binding of the phosphoSIMs of PML and Daxx to SUMO1 at the atomic level. The crystal structures of SUMO1 bound to unphosphorylated and tetraphosphorylated PML-SIM peptides indicate that three phosphoserines directly contact specific positively charged residues of SUMO1. Surprisingly, the crystal structure of SUMO1 bound to a diphosphorylated Daxx-SIM peptide indicate that the hydrophobic residues of the phosphoSIM bind in a manner similar to that seen with PML, but important differences are observed when comparing the phosphorylated residues. Together, the results provide an atomic level description of how specific acetylation patterns within different SUMO family proteins can work together with phosphorylation of phosphoSIM's regions of target proteins to regulate binding specificity.

Structural and Functional Characterization of the Phosphorylation-Dependent Interaction between PML and SUMO1.,Cappadocia L, Mascle XH, Bourdeau V, Tremblay-Belzile S, Chaker-Margot M, Lussier-Price M, Wada J, Sakaguchi K, Aubry M, Ferbeyre G, Omichinski JG Structure. 2014 Dec 11. pii: S0969-2126(14)00360-8. doi:, 10.1016/j.str.2014.10.015. PMID:25497731<ref>PMID:25497731</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4wjn" style="background-color:#fffaf0;"></div>

==See Also==
*[[SUMO 3D Structures|SUMO 3D Structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Aubry M]]
[[Category: Bourdeau V]]
[[Category: Cappadocia L]]
[[Category: Chaker-Margot M]]
[[Category: Ferbeyre G]]
[[Category: Lussier-Price M]]
[[Category: Mascle XH]]
[[Category: Omichinski JG]]
[[Category: Sakaguchi K]]
[[Category: Tremblay-Belzile S]]
[[Category: Wada J]]