1lng

From Proteopedia

(Difference between revisions)

Current revision

Crystal Structure of the SRP19-7S.S SRP RNA Complex of M. jannaschii

Structural highlights

1lng is a 2 chain structure with sequence from Methanocaldococcus jannaschii. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.3Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

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

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

Publication Abstract from PubMed

The signal recognition particle (SRP) is a phylogenetically conserved ribonucleoprotein. It associates with ribosomes to mediate co-translational targeting of membrane and secretory proteins to biological membranes. In mammalian cells, the SRP consists of a 7S RNA and six protein components. The S domain of SRP comprises the 7S.S part of RNA bound to SRP19, SRP54 and the SRP68/72 heterodimer; SRP54 has the main role in recognizing signal sequences of nascent polypeptide chains and docking SRP to its receptor. During assembly of the SRP, binding of SRP19 precedes and promotes the association of SRP54 (refs 4, 5). Here we report the crystal structure at 2.3 A resolution of the complex formed between 7S.S RNA and SRP19 in the archaeon Methanococcus jannaschii. SRP19 bridges the tips of helices 6 and 8 of 7S.S RNA by forming an extensive network of direct protein RNA interactions. Helices 6 and 8 pack side by side; tertiary RNA interactions, which also involve the strictly conserved tetraloop bases, stabilize helix 8 in a conformation competent for SRP54 binding. The structure explains the role of SRP19 and provides a molecular framework for SRP54 binding and SRP assembly in Eukarya and Archaea.

Structure of the SRP19 RNA complex and implications for signal recognition particle assembly.,Hainzl T, Huang S, Sauer-Eriksson AE Nature. 2002 Jun 13;417(6890):767-71. Epub 2002 Jun 5. PMID:12050674^[1]

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

References

↑ Hainzl T, Huang S, Sauer-Eriksson AE. Structure of the SRP19 RNA complex and implications for signal recognition particle assembly. Nature. 2002 Jun 13;417(6890):767-71. Epub 2002 Jun 5. PMID:12050674 doi:10.1038/nature00768

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

Categories: Large Structures | Methanocaldococcus jannaschii | Hainzl T | Huang S | Sauer-Eriksson AE

@@ Line 3: / Line 3: @@
 <StructureSection load='1lng' size='340' side='right'caption='[[1lng]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1lng]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/ ] and [https://en.wikipedia.org/wiki/Atcc_43067 Atcc 43067]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LNG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1LNG FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1lng]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LNG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1LNG FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=1lng FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lng OCA], [https://pdbe.org/1lng PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1lng RCSB], [https://www.ebi.ac.uk/pdbsum/1lng PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1lng 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).
+[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]]
@@ Line 35: / Line 36: @@
 __TOC__
 </StructureSection>
-[[Category: Atcc 43067]]
 [[Category: Large Structures]]
-[[Category: Hainzl, T]]
+[[Category: Methanocaldococcus jannaschii]]
-[[Category: Huang, S]]
+[[Category: Hainzl T]]
-[[Category: Sauer-Eriksson, A E]]
+[[Category: Huang S]]
-[[Category: Protein-rna complex]]
+[[Category: Sauer-Eriksson AE]]
-[[Category: Signaling protein-rna complex]]

1lng

From Proteopedia

Current revision

Crystal Structure of the SRP19-7S.S SRP RNA Complex of M. jannaschii

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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