2ihx

From Proteopedia

(Difference between revisions)

Current revision

Solution Structure of the Rous Sarcoma Virus Nucleocapsid Protein:uPsi RNA Packaging Signal Complex

Structural highlights

2ihx is a 2 chain structure with sequence from Rous sarcoma virus. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	Solution NMR
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

GAG_RSVP Capsid protein p27 forms the spherical core of the virus that encapsulates the genomic RNA-nucleocapsid complex (By similarity). The aspartyl protease mediates proteolytic cleavages of Gag and Gag-Pol polyproteins during or shortly after the release of the virion from the plasma membrane. Cleavages take place as an ordered, step-wise cascade to yield mature proteins. This process is called maturation. Displays maximal activity during the budding process just prior to particle release from the cell (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 5'-untranslated region (5'-UTR) of retroviral genomes contains elements required for genome packaging during virus assembly. For many retroviruses, the packaging elements reside in non-contiguous segments that span most or all of the 5'-UTR. The Rous sarcoma virus (RSV) is an exception, in that its genome can be packaged efficiently by a relatively short, 82 nt segment of the 5'-UTR called muPsi. The RSV 5'-UTR also contains three translational start codons (AUG-1, AUG-2 and AUG-3) that have been controvertibly implicated in translation initiation and genome packaging, one of which (AUG-3) resides within the muPsi sequence. We demonstrated recently that muPsi is capable of binding to the cognate RSV nucleocapsid protein (NC) with high affinity (dissociation constant K(d) approximately 2 nM), and that residues of AUG-3 are essential for tight binding. We now report the solution structure of the NC:muPsi complex, determined using NMR data obtained for samples containing ((13)C,(15)N)-labeled NC and (2)H-enriched, nucleotide-specifically protonated RNAs. Upon NC binding, muPsi adopts a stable secondary structure that consists of three stem loops (SL-A, SL-B and SL-C) and an 8 bp stem (O3). Binding is mediated by the two zinc knuckle domains of NC. The N-terminal knuckle interacts with a conserved U(217)GCG tetraloop (a member of the UNCG family; N=A,U,G or C), and the C-terminal zinc knuckle binds to residues that flank SL-A, including residues of AUG-3. Mutations of critical nucleotides in these sequences compromise or abolish viral infectivity. Our studies reveal novel structural features important for NC:RNA binding, and support the hypothesis that AUG-3 is conserved for genome packaging rather than translational control.

Solution structure of the Rous sarcoma virus nucleocapsid protein: muPsi RNA packaging signal complex.,Zhou J, Bean RL, Vogt VM, Summers M J Mol Biol. 2007 Jan 12;365(2):453-67. Epub 2006 Oct 10. PMID:17070546^[1]

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

References

↑ Zhou J, Bean RL, Vogt VM, Summers M. Solution structure of the Rous sarcoma virus nucleocapsid protein: muPsi RNA packaging signal complex. J Mol Biol. 2007 Jan 12;365(2):453-67. Epub 2006 Oct 10. PMID:17070546 doi:10.1016/j.jmb.2006.10.013

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/2ihx"

Categories: Large Structures | Rous sarcoma virus | Summers M | Zhou J

@@ Line 1: / Line 1: @@
 ==Solution Structure of the Rous Sarcoma Virus Nucleocapsid Protein:uPsi RNA Packaging Signal Complex==
-<StructureSection load='2ihx' size='340' side='right'caption='[[2ihx]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
+<StructureSection load='2ihx' size='340' side='right'caption='[[2ihx]]' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[2ihx]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Rous_sarcoma_virus Rous sarcoma virus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IHX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2IHX FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><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">Solution NMR</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">GAG ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=11886 Rous sarcoma virus])</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><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'>[https://proteopedia.org/fgij/fg.htm?mol=2ihx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ihx OCA], [https://pdbe.org/2ihx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ihx RCSB], [https://www.ebi.ac.uk/pdbsum/2ihx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ihx ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/GAG_RSVP GAG_RSVP]] Capsid protein p27 forms the spherical core of the virus that encapsulates the genomic RNA-nucleocapsid complex (By similarity).  The aspartyl protease mediates proteolytic cleavages of Gag and Gag-Pol polyproteins during or shortly after the release of the virion from the plasma membrane. Cleavages take place as an ordered, step-wise cascade to yield mature proteins. This process is called maturation. Displays maximal activity during the budding process just prior to particle release from the cell (By similarity).
+[https://www.uniprot.org/uniprot/GAG_RSVP GAG_RSVP] Capsid protein p27 forms the spherical core of the virus that encapsulates the genomic RNA-nucleocapsid complex (By similarity).  The aspartyl protease mediates proteolytic cleavages of Gag and Gag-Pol polyproteins during or shortly after the release of the virion from the plasma membrane. Cleavages take place as an ordered, step-wise cascade to yield mature proteins. This process is called maturation. Displays maximal activity during the budding process just prior to particle release from the cell (By similarity).
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 35: / Line 35: @@
 [[Category: Large Structures]]
 [[Category: Rous sarcoma virus]]
-[[Category: Summers, M]]
+[[Category: Summers M]]
-[[Category: Zhou, J]]
+[[Category: Zhou J]]
-[[Category: Protein-rna complex]]
-[[Category: Viral protein-rna complex]]

2ihx

From Proteopedia

Current revision

Solution Structure of the Rous Sarcoma Virus Nucleocapsid Protein:uPsi RNA Packaging Signal Complex

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