View source for 6jmk


==Ribosomal protein S7 from Mycobacterium tuberculosis==
<StructureSection load='6jmk' size='340' side='right'caption='[[6jmk]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6jmk]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis_H37Rv Mycobacterium tuberculosis H37Rv]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6JMK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6JMK 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]] 1.8&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</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=6jmk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6jmk OCA], [https://pdbe.org/6jmk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6jmk RCSB], [https://www.ebi.ac.uk/pdbsum/6jmk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6jmk ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/RS7_MYCTU RS7_MYCTU] 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, probably blocks exit of the E-site tRNA.
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== Publication Abstract from PubMed ==
Tuberculosis, caused by Mycobacterium tuberculosis (Mtb), has threaten human health for thousands years. The chaperone trigger factor (TF) of Mtb (mtbTF), a ribosome-associated molecule, plays important roles in co-translational nascent chain folding and post-translational protein assembly. However, due to lack of structural information, the dynamic regulatory mechanism of mtbTF remains barely investigated. Herein we report the structural basis of the complex of TF and ribosomal protein S7 (mtbS7) from Mtb. The mtbTF-mtbS7 complex was obtained with high purity and homogeneity in vitro. MtbTF bound with mtbS7 in a Kd value of 1.433muM, and formed a complex with mtbS7 at 1:2M ratios as shown by isothermal titration calorimetry. In addition, the crystal structure of mtbS7 was solved to a resolution at 1.8A, which was composed of six alpha-helices and two beta-strands. Moreover, the molecular envelopes of mtbTF and mtbTF-mtbS7 complex were built and consisted with these homologous structures by small-angle X-ray scattering method. Our current findings might provide structural basis for understanding the molecular mechanism of TF in protein folding and the regulation of ribosomal assembly in Mtb.

Structural insights into the complex of trigger factor chaperone and ribosomal protein S7 from Mycobacterium tuberculosis.,Li Z, Wu D, Zhan B, Hu X, Gan J, Ji C, Li J Biochem Biophys Res Commun. 2019 May 14;512(4):838-844. doi:, 10.1016/j.bbrc.2019.03.166. Epub 2019 Mar 28. PMID:30928093<ref>PMID:30928093</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 6jmk" style="background-color:#fffaf0;"></div>

==See Also==
*[[Ribosomal protein S7|Ribosomal protein S7]]
== References ==
<references/>
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</StructureSection>
[[Category: Large Structures]]
[[Category: Mycobacterium tuberculosis H37Rv]]
[[Category: Li J]]
[[Category: Li Z]]