3iy8: Difference between revisions

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

OCA

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 ==Leishmania tarentolae Mitonchondrial Ribosome small subunit==
-<StructureSection load='3iy8' size='340' side='right' caption='[[3iy8]], [[Resolution|resolution]] 14.10&Aring;' scene=''>
+<SX load='3iy8' size='340' side='right' viewer='molstar' caption='[[3iy8]], [[Resolution|resolution]] 14.10&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3iy8]] is a 11 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [http://en.wikipedia.org/wiki/Leishmania_tarentolae Leishmania tarentolae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3IY8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3IY8 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3iy8]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12] and [https://en.wikipedia.org/wiki/Leishmania_tarentolae Leishmania tarentolae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3IY8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3IY8 FirstGlance]. <br>
-</td></tr><tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3iy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3iy8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3iy8 RCSB], [http://www.ebi.ac.uk/pdbsum/3iy8 PDBsum]</span></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 14.1&#8491;</td></tr>
-<table>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3iy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3iy8 OCA], [https://pdbe.org/3iy8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3iy8 RCSB], [https://www.ebi.ac.uk/pdbsum/3iy8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3iy8 ProSAT]</span></td></tr>
+</table>
+== Function ==
+[https://www.uniprot.org/uniprot/RS5_ECOLI RS5_ECOLI] With S4 and S12 plays an important role in translational accuracy. Many suppressors of streptomycin-dependent mutants of protein S12 are found in this protein, some but not all of which decrease translational accuracy (ram, ribosomal ambiguity mutations).<ref>PMID:15652481</ref>   Located at the back of the 30S subunit body where it stabilizes the conformation of the head with respect to the body.<ref>PMID:15652481</ref>   The physical location of this protein suggests it may also play a role in mRNA unwinding by the ribosome, possibly by forming part of a processivity clamp.<ref>PMID:15652481</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/iy/3iy8_consurf.spt"</scriptWhenChecked>
+     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/iy/3iy8_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/chain_selection.php?pdb_ID=2ata ConSurf].
+</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=3iy8 ConSurf].
 <div style="clear:both"></div>
-<div style="background-color:#fffaf0;">
-== Publication Abstract from PubMed ==
-The Leishmania tarentolae mitochondrial ribosome (Lmr) is a minimal ribosomal RNA (rRNA)-containing ribosome. We have obtained a cryo-EM map of the Lmr. The map reveals several features that have not been seen in previously-determined structures of eubacterial or eukaryotic (cytoplasmic or organellar) ribosomes to our knowledge. Comparisons of the Lmr map with X-ray crystallographic and cryo-EM maps of the eubacterial ribosomes and a cryo-EM map of the mammalian mitochondrial ribosome show that (i) the overall structure of the Lmr is considerably more porous, (ii) the topology of the intersubunit space is significantly different, with fewer intersubunit bridges, but more tunnels, and (iii) several of the functionally-important rRNA regions, including the alpha-sarcin-ricin loop, have different relative positions within the structure. Furthermore, the major portions of the mRNA channel, the tRNA passage, and the nascent polypeptide exit tunnel contain Lmr-specific proteins, suggesting that the mechanisms for mRNA recruitment, tRNA interaction, and exiting of the nascent polypeptide in Lmr must differ markedly from the mechanisms deduced for ribosomes in other organisms. Our study identifies certain structural features that are characteristic solely of mitochondrial ribosomes and other features that are characteristic of both mitochondrial and chloroplast ribosomes (i.e., organellar ribosomes).
-Structure of a mitochondrial ribosome with minimal RNA.,Sharma MR, Booth TM, Simpson L, Maslov DA, Agrawal RK Proc Natl Acad Sci U S A. 2009 Jun 16;106(24):9637-42. Epub 2009 Jun 3. PMID:19497863<ref>PMID:19497863</ref>
-From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-</div>
 ==See Also==
@@ Line 33: / Line 29: @@
 *[[Ribosomal protein S8|Ribosomal protein S8]]
 *[[Ribosomal protein S9|Ribosomal protein S9]]
+*[[Ribosome 3D structures|Ribosome 3D structures]]
 == References ==
 <references/>
 __TOC__
-</StructureSection>
+</SX>
-[[Category: Escherichia coli]]
+[[Category: Escherichia coli K-12]]
-[[Category: Leishmania tarentolae]]
+[[Category: Large Structures]]
-[[Category: Agrawal, R K.]]
-[[Category: Booth, T M.]]
-[[Category: Maslov, D A.]]
-[[Category: Sharma, M R.]]
-[[Category: Simpson, L.]]
-[[Category: Antibiotic resistance]]
-[[Category: Cryoem]]
-[[Category: Endonuclease]]
-[[Category: Hydrolase]]
 [[Category: Leishmania tarentolae]]
-[[Category: Methylation]]
+[[Category: Agrawal RK]]
-[[Category: Minimal rna.]]
+[[Category: Booth TM]]
-[[Category: Mitochondrial ribosome]]
+[[Category: Maslov DA]]
-[[Category: Nuclease]]
+[[Category: Sharma MR]]
-[[Category: Repressor]]
+[[Category: Simpson L]]
-[[Category: Ribonucleoprotein]]
-[[Category: Ribosomal protein]]
-[[Category: Ribosome]]
-[[Category: Rna-binding]]
-[[Category: Rrna-binding]]
-[[Category: Translation regulation]]
-[[Category: Trna-binding]]