1td0

From Proteopedia

(Difference between revisions)

Revision as of 07:28, 14 March 2018

Viral capsid protein SHP at pH 5.5

Structural highlights

1td0 is a 4 chain structure with sequence from Enterobacteria phage p21. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[VSHP_BPP21] Stabilizes the head shell following the rearrangement of the gp7 subunits of the head shell lattice that accompanies expansion of the head.

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

SHP, the capsid-stabilizing protein of lambdoid phage 21, is highly resistant against denaturant-induced unfolding. We demonstrate that this high functional stability of SHP is due to a high kinetic stability with a half-life for unfolding of 25 days at zero denaturant, while the thermodynamic stability is not unusually high. Unfolding experiments demonstrated that the trimeric state (also observed in crystals and present on the phage capsid) of SHP is kinetically stable in solution, while the monomer intermediate unfolds very rapidly. We also determined the crystal structure of trimeric SHP at 1.5A resolution, which was compared to that of its functional homolog gpD. This explains how a tight network of H-bonds rigidifies crucial interpenetrating residues, leading to the observed extremely slow trimer dissociation or denaturation. Taken as a whole, our results provide molecular-level insights into natural strategies to achieve kinetic stability by taking advantage of protein oligomerization. Kinetic stability may be especially needed in phage capsids to allow survival in harsh environments.

Kinetic stability and crystal structure of the viral capsid protein SHP.,Forrer P, Chang C, Ott D, Wlodawer A, Pluckthun A J Mol Biol. 2004 Nov 12;344(1):179-93. PMID:15504410^[1]

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

References

↑ Forrer P, Chang C, Ott D, Wlodawer A, Pluckthun A. Kinetic stability and crystal structure of the viral capsid protein SHP. J Mol Biol. 2004 Nov 12;344(1):179-93. PMID:15504410 doi:10.1016/j.jmb.2004.09.030

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/1td0"

@@ Line 1: / Line 1: @@
 ==Viral capsid protein SHP at pH 5.5==
 <StructureSection load='1td0' size='340' side='right' caption='[[1td0]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1td0]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Bpp21 Bpp21]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TD0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1TD0 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1td0]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Enterobacteria_phage_p21 Enterobacteria phage p21]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TD0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1TD0 FirstGlance]. <br>
-</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=1td0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1td0 OCA], [http://pdbe.org/1td0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1td0 RCSB], [http://www.ebi.ac.uk/pdbsum/1td0 PDBsum]</span></td></tr>
+</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=1td0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1td0 OCA], [http://pdbe.org/1td0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1td0 RCSB], [http://www.ebi.ac.uk/pdbsum/1td0 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1td0 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 11: / Line 12: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/td/1td0_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/td/1td0_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 30: / Line 31: @@
 __TOC__
 </StructureSection>
-[[Category: Bpp21]]
+[[Category: Enterobacteria phage p21]]
 [[Category: Chang, C]]
 [[Category: Forrer, P]]

1td0

From Proteopedia

Revision as of 07:28, 14 March 2018

Viral capsid protein SHP at pH 5.5

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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