3cce: Difference between revisions

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==Structure of Anisomycin resistant 50S Ribosomal Subunit: 23S rRNA mutation U2535A==
The line below this paragraph, containing "STRUCTURE_3cce", creates the "Structure Box" on the page.
<StructureSection load='3cce' size='340' side='right'caption='[[3cce]], [[Resolution|resolution]] 2.75&Aring;' scene=''>
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== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[3cce]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Haloarcula_marismortui Haloarcula marismortui]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CCE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3CCE FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.75&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1MA:6-HYDRO-1-METHYLADENOSINE-5-MONOPHOSPHATE'>1MA</scene>, <scene name='pdbligand=CD:CADMIUM+ION'>CD</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=OMG:O2-METHYLGUANOSINE-5-MONOPHOSPHATE'>OMG</scene>, <scene name='pdbligand=OMU:O2-METHYLURIDINE+5-MONOPHOSPHATE'>OMU</scene>, <scene name='pdbligand=PSU:PSEUDOURIDINE-5-MONOPHOSPHATE'>PSU</scene>, <scene name='pdbligand=SR:STRONTIUM+ION'>SR</scene>, <scene name='pdbligand=UR3:3-METHYLURIDINE-5-MONOPHOSHATE'>UR3</scene></td></tr>
{{STRUCTURE_3cce| PDB=3cce |  SCENE= }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3cce FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3cce OCA], [https://pdbe.org/3cce PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3cce RCSB], [https://www.ebi.ac.uk/pdbsum/3cce PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3cce ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/RL2_HALMA RL2_HALMA] One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome (By similarity).[HAMAP-Rule:MF_01320_A]
== 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/cc/3cce_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=3cce ConSurf].
<div style="clear:both"></div>


'''Structure of Anisomycin resistant 50S Ribosomal Subunit: 23S rRNA mutation U2535A'''
==See Also==
 
*[[Ribosome 3D structures|Ribosome 3D structures]]
 
__TOC__
==Overview==
</StructureSection>
Eleven mutations that make Haloarcula marismortui resistant to anisomycin, an antibiotic that competes with the amino acid side chains of aminoacyl tRNAs for binding to the A-site cleft of the large ribosomal unit, have been identified in 23S rRNA. The correlation observed between the sensitivity of H. marismortui to anisomycin and the affinity of its large ribosomal subunits for the drug indicates that its response to anisomycin is determined primarily by the binding of the drug to its large ribosomal subunit. The structures of large ribosomal subunits containing resistance mutations show that these mutations can be divided into two classes: (1) those that interfere with specific drug-ribosome interactions and (2) those that stabilize the apo conformation of the A-site cleft of the ribosome relative to its drug-bound conformation. The conformational effects of some mutations of the second kind propagate through the ribosome for considerable distances and are reversed when A-site substrates bind to the ribosome.
 
==About this Structure==
3CCE is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Haloarcula_marismortui Haloarcula marismortui]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CCE OCA].
 
==Reference==
Mutations outside the anisomycin-binding site can make ribosomes drug-resistant., Blaha G, Gurel G, Schroeder SJ, Moore PB, Steitz TA, J Mol Biol. 2008 Jun 6;379(3):505-19. Epub 2008 Apr 8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/18455733 18455733]
[[Category: Haloarcula marismortui]]
[[Category: Haloarcula marismortui]]
[[Category: Protein complex]]
[[Category: Large Structures]]
[[Category: Blaha, G.]]
[[Category: Blaha G]]
[[Category: Gurel, G.]]
[[Category: Gurel G]]
[[Category: 23s rrna mutation u2535a]]
[[Category: Ribosome]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu May 22 21:59:46 2008''

Latest revision as of 12:34, 21 February 2024

Structure of Anisomycin resistant 50S Ribosomal Subunit: 23S rRNA mutation U2535AStructure of Anisomycin resistant 50S Ribosomal Subunit: 23S rRNA mutation U2535A

Structural highlights

3cce is a 10 chain structure with sequence from Haloarcula marismortui. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.75Å
Ligands:, , , , , , , , , ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

RL2_HALMA One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome (By similarity).[HAMAP-Rule:MF_01320_A]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

3cce, resolution 2.75Å

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