View source for 3cjt


==Ribosomal protein L11 methyltransferase (PrmA) in complex with dimethylated ribosomal protein L11==
<StructureSection load='3cjt' size='340' side='right'caption='[[3cjt]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3cjt]] is a 16 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus_HB8 Thermus thermophilus HB8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CJT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3CJT 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]] 2.3&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=2MM:N,N-DIMETHYL-L-METHIONINE'>2MM</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NO3:NITRATE+ION'>NO3</scene>, <scene name='pdbligand=SAH:S-ADENOSYL-L-HOMOCYSTEINE'>SAH</scene>, <scene name='pdbligand=SAM:S-ADENOSYLMETHIONINE'>SAM</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=3cjt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3cjt OCA], [https://pdbe.org/3cjt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3cjt RCSB], [https://www.ebi.ac.uk/pdbsum/3cjt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3cjt ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PRMA_THET8 PRMA_THET8] Methylates ribosomal protein L11; this reaction probably occurs before the protein is assembled into the ribosome. This function is dispensable for growth and thermostability.
== 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/cj/3cjt_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=3cjt ConSurf].
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== Publication Abstract from PubMed ==
Ribosomal protein L11 is a universally conserved component of the large subunit, and plays a significant role during initiation, elongation, and termination of protein synthesis. In Escherichia coli, the lysine methyltransferase PrmA trimethylates the N-terminal alpha-amino group and the epsilon-amino groups of Lys3 and Lys39. Here, we report four PrmA-L11 complex structures in different orientations with respect to the PrmA active site. Two structures capture the L11 N-terminal alpha-amino group in the active site in a trimethylated post-catalytic state and in a dimethylated state with bound S-adenosyl-L-homocysteine. Two other structures show L11 in a catalytic orientation to modify Lys39 and in a noncatalytic orientation. The comparison of complex structures in different orientations with a minimal substrate recognition complex shows that the binding mode remains conserved in all L11 orientations, and that substrate orientation is brought about by the unusual interdomain flexibility of PrmA.

Multiple-site trimethylation of ribosomal protein L11 by the PrmA methyltransferase.,Demirci H, Gregory ST, Dahlberg AE, Jogl G Structure. 2008 Jul;16(7):1059-66. PMID:18611379<ref>PMID:18611379</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 3cjt" style="background-color:#fffaf0;"></div>

==See Also==
*[[Ribosomal protein L11 3D structures|Ribosomal protein L11 3D structures]]
*[[Ribosomal protein L11 methyltransferase|Ribosomal protein L11 methyltransferase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Thermus thermophilus HB8]]
[[Category: Dahlberg AE]]
[[Category: Demirci H]]
[[Category: Gregory ST]]
[[Category: Jogl G]]