1xm2: Difference between revisions

No edit summary
No edit summary
 
(14 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[Image:1xm2.gif|left|200px]]
<!--
The line below this paragraph, containing "STRUCTURE_1xm2", creates the "Structure Box" on the page.
You may change the PDB parameter (which sets the PDB file loaded into the applet)
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
or leave the SCENE parameter empty for the default display.
-->
{{STRUCTURE_1xm2|  PDB=1xm2  |  SCENE=  }}
'''Crystal structure of Human PRL-1'''


==Crystal structure of Human PRL-1==
<StructureSection load='1xm2' size='340' side='right'caption='[[1xm2]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1xm2]] is a 6 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=1XM2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XM2 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]] 2.7&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=1xm2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xm2 OCA], [https://pdbe.org/1xm2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1xm2 RCSB], [https://www.ebi.ac.uk/pdbsum/1xm2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1xm2 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/TP4A1_HUMAN TP4A1_HUMAN] Protein tyrosine phosphatase which stimulates progression from G1 into S phase during mitosis. May play a role in the development and maintenance of differentiating epithelial tissues. Enhances cell proliferation, cell motility and invasive activity, and promotes cancer metastasis.<ref>PMID:12235145</ref> <ref>PMID:14643450</ref> <ref>PMID:12782572</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/xm/1xm2_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=1xm2 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The PRL phosphatases, which constitute a subfamily of the protein tyrosine phosphatases (PTPs), are implicated in oncogenic and metastatic processes. Here, we report the crystal structure of human PRL-1 determined at 2.7A resolution. The crystal structure reveals the shallow active-site pocket with highly hydrophobic character. A structural comparison with the previously determined NMR structure of PRL-3 exhibits significant differences in the active-site region. In the PRL-1 structure, a sulfate ion is bound to the active-site, providing stabilizing interactions to maintain the canonically found active conformation of PTPs, whereas the NMR structure exhibits an open conformation of the active-site. We also found that PRL-1 forms a trimer in the crystal and the trimer exists in the membrane fraction of cells, suggesting the possible biological regulation of PRL-1 activity by oligomerization. The detailed structural information on the active enzyme conformation and regulation of PRL-1 provides the structural basis for the development of potential inhibitors of PRL enzymes.


==Overview==
Trimeric structure of PRL-1 phosphatase reveals an active enzyme conformation and regulation mechanisms.,Jeong DG, Kim SJ, Kim JH, Son JH, Park MR, Lim SM, Yoon TS, Ryu SE J Mol Biol. 2005 Jan 14;345(2):401-13. PMID:15571731<ref>PMID:15571731</ref>
The PRL phosphatases, which constitute a subfamily of the protein tyrosine phosphatases (PTPs), are implicated in oncogenic and metastatic processes. Here, we report the crystal structure of human PRL-1 determined at 2.7A resolution. The crystal structure reveals the shallow active-site pocket with highly hydrophobic character. A structural comparison with the previously determined NMR structure of PRL-3 exhibits significant differences in the active-site region. In the PRL-1 structure, a sulfate ion is bound to the active-site, providing stabilizing interactions to maintain the canonically found active conformation of PTPs, whereas the NMR structure exhibits an open conformation of the active-site. We also found that PRL-1 forms a trimer in the crystal and the trimer exists in the membrane fraction of cells, suggesting the possible biological regulation of PRL-1 activity by oligomerization. The detailed structural information on the active enzyme conformation and regulation of PRL-1 provides the structural basis for the development of potential inhibitors of PRL enzymes.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
1XM2 is a [[Single protein]] structure of 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=1XM2 OCA].
</div>
<div class="pdbe-citations 1xm2" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Trimeric structure of PRL-1 phosphatase reveals an active enzyme conformation and regulation mechanisms., Jeong DG, Kim SJ, Kim JH, Son JH, Park MR, Lim SM, Yoon TS, Ryu SE, J Mol Biol. 2005 Jan 14;345(2):401-13. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15571731 15571731]
*[[Dual specificity phosphatase 3D structures|Dual specificity phosphatase 3D structures]]
*[[Tyrosine phosphatase 3D structures|Tyrosine phosphatase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Protein-tyrosine-phosphatase]]
[[Category: Large Structures]]
[[Category: Single protein]]
[[Category: Jeong DG]]
[[Category: Jeong, D G.]]
[[Category: Kim JH]]
[[Category: Kim, J H.]]
[[Category: Kim SJ]]
[[Category: Kim, S J.]]
[[Category: Ryu SE]]
[[Category: Ryu, S E.]]
[[Category: Son JH]]
[[Category: Son, J H.]]
[[Category: Hydrolase]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 15:12:16 2008''

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA