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.

1p7n

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 07:49, 15 February 2018

Dimeric Rous Sarcoma virus Capsid protein structure with an upstream 25-amino acid residue extension of C-terminal of Gag p10 protein

Structural highlights

1p7n is a 1 chain structure with sequence from Rous sarcoma virus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1em9
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 structure of the N-terminal domain (NTD) of Rous sarcoma virus (RSV) capsid protein (CA), with an upstream 25 amino acid residue extension corresponding to the C-terminal portion of the Gag p10 protein, has been determined by X-ray crystallography. Purified Gag proteins of retroviruses can assemble in vitro into virus-like particles closely resembling in vivo-assembled immature virus particles, but without a membrane. When the 25 amino acid residues upstream of CA are deleted, Gag assembles into tubular particles. The same phenotype is observed in vivo. Thus, these residues act as a "shape determinant" promoting spherical assembly, when they are present, or tubular assembly, when they are absent. We show that, unlike the NTD on its own, the extended NTD protein has no beta-hairpin loop at the N terminus of CA and that the molecule forms a dimer in which the amino-terminal extension forms the interface between monomers. Since dimerization of Gag has been inferred to be a critical step in assembly of spherical, immature Gag particles, the dimer interface may represent a structural feature that is essential in retrovirus assembly.

Dimeric rous sarcoma virus capsid protein structure relevant to immature Gag assembly.,Nandhagopal N, Simpson AA, Johnson MC, Francisco AB, Schatz GW, Rossmann MG, Vogt VM J Mol Biol. 2004 Jan 2;335(1):275-82. PMID:14659756^[1]

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

References

↑ Nandhagopal N, Simpson AA, Johnson MC, Francisco AB, Schatz GW, Rossmann MG, Vogt VM. Dimeric rous sarcoma virus capsid protein structure relevant to immature Gag assembly. J Mol Biol. 2004 Jan 2;335(1):275-82. PMID:14659756

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/1p7n"

@@ Line 1: / Line 1: @@
 ==Dimeric Rous Sarcoma virus Capsid protein structure with an upstream 25-amino acid residue extension of C-terminal of Gag p10 protein==
 <StructureSection load='1p7n' size='340' side='right' caption='[[1p7n]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
@@ Line 4: / Line 5: @@
 <table><tr><td colspan='2'>[[1p7n]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Rous_sarcoma_virus Rous sarcoma virus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1P7N OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1P7N FirstGlance]. <br>
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1em9|1em9]]</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=1p7n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p7n OCA], [http://pdbe.org/1p7n PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1p7n RCSB], [http://www.ebi.ac.uk/pdbsum/1p7n 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=1p7n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p7n OCA], [http://pdbe.org/1p7n PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1p7n RCSB], [http://www.ebi.ac.uk/pdbsum/1p7n PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1p7n ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 12: / Line 13: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/p7/1p7n_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/p7/1p7n_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 27: / Line 28: @@
 </div>
 <div class="pdbe-citations 1p7n" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[Gag polyprotein|Gag polyprotein]]
-*[[Virus coat protein|Virus coat protein]]
 == References ==
 <references/>

1p7n

From Proteopedia

Revision as of 07:49, 15 February 2018

Dimeric Rous Sarcoma virus Capsid protein structure with an upstream 25-amino acid residue extension of C-terminal of Gag p10 protein

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