This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

1hus

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 09:09, 10 January 2018

RIBOSOMAL PROTEIN S7

Structural highlights

1hus is a 1 chain structure with sequence from Atcc 12980. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
NonStd Res:
Gene:	S7 (ATCC 12980)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[RS7_GEOSE] 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 (By similarity).

Evolutionary Conservation

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

Publication Abstract from PubMed

BACKGROUND: The ribosome is a ribonucleoprotein complex which performs the crucial function of protein biosynthesis. Its role is to decode mRNAs within the cell and to synthesize the corresponding proteins. Ribosomal protein S7 is located at the head of the small (30S) subunit of the ribosome and faces into the decoding centre. S7 is one of the primary 16S rRNA-binding proteins responsible for initiating the assembly of the head of the 30S subunit. In addition, S7 has been shown to be the major protein component to cross-link with tRNA molecules bound at both the aminoacyl-tRNA (A) and peptidyl-tRNA (P) sites of the ribosome. The ribosomal protein S7 clearly plays an important role in ribosome function. It was hoped that an atomic-resolution structure of this protein would aid our understanding of ribosomal mechanisms. RESULTS: The structure of ribosomal protein S7 from Bacillus stearothermophilus has been solved at 2.5 A resolution using multiwavelength anomalous diffraction and selenomethionyl-substituted proteins. The molecule consists of a helical hydrophobic core domain and a beta-ribbon arm extending from the hydrophobic core. The helical core domain is composed of a pair of entangled helix-turn-helix motifs; the fold of the core is similar to that of a DNA architectural factor. Highly conserved basic and aromatic residues are clustered on one face of the S7 molecule and create a 16S rRNA contact surface. CONCLUSIONS: The molecular structure of S7, together with the results of previous cross-linking experiments, suggest how this ribosomal protein binds to the 3' major domain of 16S rRNA and mediates the folding of 16S rRNA to create the ribosome decoding centre.

Ribosomal protein S7: a new RNA-binding motif with structural similarities to a DNA architectural factor.,Hosaka H, Nakagawa A, Tanaka I, Harada N, Sano K, Kimura M, Yao M, Wakatsuki S Structure. 1997 Sep 15;5(9):1199-208. PMID:9331423^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Hosaka H, Nakagawa A, Tanaka I, Harada N, Sano K, Kimura M, Yao M, Wakatsuki S. Ribosomal protein S7: a new RNA-binding motif with structural similarities to a DNA architectural factor. Structure. 1997 Sep 15;5(9):1199-208. PMID:9331423

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1hus"

@@ Line 1: / Line 1: @@
 ==RIBOSOMAL PROTEIN S7==
 <StructureSection load='1hus' size='340' side='right' caption='[[1hus]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">S7 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1422 ATCC 12980])</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=1hus FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hus OCA], [http://pdbe.org/1hus PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1hus RCSB], [http://www.ebi.ac.uk/pdbsum/1hus PDBsum]</span></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=1hus FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hus OCA], [http://pdbe.org/1hus PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1hus RCSB], [http://www.ebi.ac.uk/pdbsum/1hus PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1hus ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 13: / Line 14: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hu/1hus_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hu/1hus_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 28: / Line 29: @@
 </div>
 <div class="pdbe-citations 1hus" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[Ribosomal protein S7|Ribosomal protein S7]]
 == References ==
 <references/>

1hus

From Proteopedia

Revision as of 09:09, 10 January 2018

RIBOSOMAL PROTEIN S7

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox