1l9a: Difference between revisions

From Proteopedia
Jump to navigationJump to search
← Older edit
OCA (talk | contribs)
Bots, Bureaucrats, journal, Administrators
3,332,843 edits
No edit summary
OCA (talk | contribs)
Bots, Bureaucrats, journal, Administrators
3,332,843 edits
No edit summary
 
(15 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[Image:1l9a.gif|left|200px]]


{{Structure
==CRYSTAL STRUCTURE OF SRP19 IN COMPLEX WITH THE S DOMAIN OF SIGNAL RECOGNITION PARTICLE RNA==
|PDB= 1l9a |SIZE=350|CAPTION= <scene name='initialview01'>1l9a</scene>, resolution 2.90&Aring;
<StructureSection load='1l9a' size='340' side='right'caption='[[1l9a]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=MMC:METHYL MERCURY ION'>MMC</scene>
<table><tr><td colspan='2'>[[1l9a]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1L9A OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1L9A FirstGlance]. <br>
|ACTIVITY=  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.9&#8491;</td></tr>
|GENE= SRP19 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2190 Methanocaldococcus jannaschii])
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CCC:CYTIDINE-5-PHOSPHATE-2,3-CYCLIC+PHOSPHATE'>CCC</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MMC:METHYL+MERCURY+ION'>MMC</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=1l9a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1l9a OCA], [https://pdbe.org/1l9a PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1l9a RCSB], [https://www.ebi.ac.uk/pdbsum/1l9a PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1l9a ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/SRP19_METJA SRP19_METJA] Involved in targeting and insertion of nascent membrane proteins into the cytoplasmic membrane. Binds directly to 7S RNA and mediates binding of the 54 kDa subunit of the SRP (By similarity).
== 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/l9/1l9a_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1l9a ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The signal recognition particle (SRP) is a ribonucleoprotein particle involved in GTP-dependent translocation of secretory proteins across membranes. In Archaea and Eukarya, SRP19 binds to 7SL RNA and promotes the incorporation of SRP54, which contains the binding sites for GTP, the signal peptide, and the membrane-bound SRP receptor. We have determined the crystal structure of Methanococcus jannaschii SRP19 bound to the S domain of human 7SL RNA at 2.9 A resolution. SRP19 clamps the tetraloops of two branched helices (helices 6 and 8) and allows them to interact side by side. Helix 6 acts as a splint for helix 8 and partially preorganizes the binding site for SRP54 in helix 8, thereby facilitating the binding of SRP54 in assembly.


'''CRYSTAL STRUCTURE OF SRP19 IN COMPLEX WITH THE S DOMAIN OF SIGNAL RECOGNITION PARTICLE RNA'''
Crystal structure of SRP19 in complex with the S domain of SRP RNA and its implication for the assembly of the signal recognition particle.,Oubridge C, Kuglstatter A, Jovine L, Nagai K Mol Cell. 2002 Jun;9(6):1251-61. PMID:12086622<ref>PMID:12086622</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1l9a" style="background-color:#fffaf0;"></div>


==Overview==
==See Also==
The signal recognition particle (SRP) is a ribonucleoprotein particle involved in GTP-dependent translocation of secretory proteins across membranes. In Archaea and Eukarya, SRP19 binds to 7SL RNA and promotes the incorporation of SRP54, which contains the binding sites for GTP, the signal peptide, and the membrane-bound SRP receptor. We have determined the crystal structure of Methanococcus jannaschii SRP19 bound to the S domain of human 7SL RNA at 2.9 A resolution. SRP19 clamps the tetraloops of two branched helices (helices 6 and 8) and allows them to interact side by side. Helix 6 acts as a splint for helix 8 and partially preorganizes the binding site for SRP54 in helix 8, thereby facilitating the binding of SRP54 in assembly.
*[[Signal recognition particle 3D structures|Signal recognition particle 3D structures]]
 
== References ==
==About this Structure==
<references/>
1L9A is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1L9A OCA].
__TOC__
 
</StructureSection>
==Reference==
[[Category: Homo sapiens]]
Crystal structure of SRP19 in complex with the S domain of SRP RNA and its implication for the assembly of the signal recognition particle., Oubridge C, Kuglstatter A, Jovine L, Nagai K, Mol Cell. 2002 Jun;9(6):1251-61. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12086622 12086622]
[[Category: Large Structures]]
[[Category: Methanocaldococcus jannaschii]]
[[Category: Methanocaldococcus jannaschii]]
[[Category: Protein complex]]
[[Category: Jovine L]]
[[Category: Jovine, L.]]
[[Category: Kuglstatter A]]
[[Category: Kuglstatter, A.]]
[[Category: Nagai K]]
[[Category: Nagai, K.]]
[[Category: Oubridge C]]
[[Category: Oubridge, C.]]
[[Category: MG]]
[[Category: MMC]]
[[Category: protein-rna complex]]
[[Category: ribonucleoprotein]]
[[Category: signal recognition particle]]
[[Category: srp]]
[[Category: tetraloop]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 12:28:08 2008''
Retrieved from "https://proteopedia.org/1l9a"