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<SX load='6swe' size='340' side='right' viewer='molstar' caption='[[6swe]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
<SX load='6swe' size='340' side='right' viewer='molstar' caption='[[6swe]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[6swe]] is a 15 chain structure with sequence from [http://en.wikipedia.org/wiki/ ], [http://en.wikipedia.org/wiki/Pyrococcus_abyssi_(strain_ge5_/_orsay) Pyrococcus abyssi (strain ge5 / orsay)] and [http://en.wikipedia.org/wiki/Pyrococcus_abyssi_ge5 Pyrococcus abyssi ge5]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6SWE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6SWE FirstGlance]. <br>
<table><tr><td colspan='2'>[[6swe]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrococcus_abyssi_GE5 Pyrococcus abyssi GE5]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6SWE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6SWE FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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]] 3.1&#8491;</td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=4AC:N(4)-ACETYLCYTIDINE-5-MONOPHOSPHATE'>4AC</scene>, <scene name='pdbligand=5MC:5-METHYLCYTIDINE-5-MONOPHOSPHATE'>5MC</scene>, <scene name='pdbligand=B8H:'>B8H</scene>, <scene name='pdbligand=OMC:O2-METHYLYCYTIDINE-5-MONOPHOSPHATE'>OMC</scene></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=4AC:N(4)-ACETYLCYTIDINE-5-MONOPHOSPHATE'>4AC</scene>, <scene name='pdbligand=5MC:5-METHYLCYTIDINE-5-MONOPHOSPHATE'>5MC</scene>, <scene name='pdbligand=B8H:[(2~{R},3~{S},4~{R},5~{S})-5-[1-methyl-2,4-bis(oxidanylidene)pyrimidin-5-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>B8H</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=OMC:O2-METHYLYCYTIDINE-5-MONOPHOSPHATE'>OMC</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6swe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6swe OCA], [http://pdbe.org/6swe PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6swe RCSB], [http://www.ebi.ac.uk/pdbsum/6swe PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6swe ProSAT]</span></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=6swe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6swe OCA], [https://pdbe.org/6swe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6swe RCSB], [https://www.ebi.ac.uk/pdbsum/6swe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6swe ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/RS14Z_PYRAB RS14Z_PYRAB]] Binds 16S rRNA, required for the assembly of 30S particles. [[http://www.uniprot.org/uniprot/RS19E_PYRAB RS19E_PYRAB]] May be involved in maturation of the 30S ribosomal subunit. [[http://www.uniprot.org/uniprot/RS7_PYRAB RS7_PYRAB]] One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it nucleates assembly of the head domain of the 30S subunit. Is located at the subunit interface close to the decoding center. [[http://www.uniprot.org/uniprot/RS3_PYRAB RS3_PYRAB]] Binds the lower part of the 30S subunit head. [[http://www.uniprot.org/uniprot/IF1A_PYRAB IF1A_PYRAB]] Seems to be required for maximal rate of protein biosynthesis. Enhances ribosome dissociation into subunits and stabilizes the binding of the initiator Met-tRNA(I) to 40 S ribosomal subunits (By similarity). [[http://www.uniprot.org/uniprot/RS19_PYRAB RS19_PYRAB]] Protein S19 forms a complex with S13 that binds strongly to the 16S ribosomal RNA. [[http://www.uniprot.org/uniprot/RS10_PYRAB RS10_PYRAB]] Involved in the binding of tRNA to the ribosomes. [[http://www.uniprot.org/uniprot/RL7A_PYRAB RL7A_PYRAB]] Multifunctional RNA-binding protein that recognizes the K-turn motif in ribosomal RNA, the RNA component of RNase P, box H/ACA, box C/D and box C'/D' sRNAs. [[http://www.uniprot.org/uniprot/RS13_PYRAB RS13_PYRAB]] Located at the top of the head of the 30S subunit, it contacts several helices of the 16S rRNA. In the 70S ribosome it contacts the 23S rRNA (bridge B1a) and protein L5 of the 50S subunit (bridge B1b), connecting the 2 subunits; these bridges are implicated in subunit movement.
[https://www.uniprot.org/uniprot/RS27A_PYRAB RS27A_PYRAB]  
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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</SX>
</SX>
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Pyrococcus abyssi ge5]]
[[Category: Pyrococcus abyssi GE5]]
[[Category: Coureux, P D]]
[[Category: Coureux P-D]]
[[Category: Mechulam, Y]]
[[Category: Mechulam Y]]
[[Category: Schmitt, E]]
[[Category: Schmitt E]]
[[Category: Archaea]]
[[Category: Cryo-em]]
[[Category: Evolution]]
[[Category: Ribosome]]
[[Category: Rrna modification]]
[[Category: Translation initiation]]
[[Category: Trna]]

Latest revision as of 13:07, 6 November 2024

IC2 head of cryo-EM structure of a full archaeal ribosomal translation initiation complex devoid of aIF1 in P. abyssi

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