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1svy

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[[Image:1svy.gif|left|200px]]<br /><applet load="1svy" size="350" color="white" frame="true" align="right" spinBox="true"
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[[Image:1svy.gif|left|200px]]
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caption="1svy, resolution 1.75&Aring;" />
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'''SEVERIN DOMAIN 2, 1.75 ANGSTROM CRYSTAL STRUCTURE'''<br />
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{{Structure
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|PDB= 1svy |SIZE=350|CAPTION= <scene name='initialview01'>1svy</scene>, resolution 1.75&Aring;
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|SITE=
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|LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene> and <scene name='pdbligand=NA:SODIUM ION'>NA</scene>
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|ACTIVITY=
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|GENE=
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}}
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'''SEVERIN DOMAIN 2, 1.75 ANGSTROM CRYSTAL STRUCTURE'''
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==Overview==
==Overview==
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==About this Structure==
==About this Structure==
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1SVY is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Dictyostelium_discoideum Dictyostelium discoideum] with <scene name='pdbligand=CA:'>CA</scene> and <scene name='pdbligand=NA:'>NA</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SVY OCA].
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1SVY is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Dictyostelium_discoideum Dictyostelium discoideum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SVY OCA].
==Reference==
==Reference==
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Mapping the functional surface of domain 2 in the gelsolin superfamily., Puius YA, Fedorov EV, Eichinger L, Schleicher M, Almo SC, Biochemistry. 2000 May 9;39(18):5322-31. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10820002 10820002]
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Mapping the functional surface of domain 2 in the gelsolin superfamily., Puius YA, Fedorov EV, Eichinger L, Schleicher M, Almo SC, Biochemistry. 2000 May 9;39(18):5322-31. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10820002 10820002]
[[Category: Dictyostelium discoideum]]
[[Category: Dictyostelium discoideum]]
[[Category: Single protein]]
[[Category: Single protein]]
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[[Category: villin]]
[[Category: villin]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:05:46 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:10:21 2008''

Revision as of 12:10, 20 March 2008


PDB ID 1svy

Drag the structure with the mouse to rotate
, resolution 1.75Å
Ligands: and
Coordinates: save as pdb, mmCIF, xml



SEVERIN DOMAIN 2, 1.75 ANGSTROM CRYSTAL STRUCTURE


Overview

The crystal structure of the F-actin binding domain 2 of severin, the gelsolin homologue from Dictyostelium discoideum, has been determined by multiple isomorphous replacement and refined to 1.75 A resolution. The structure reveals an alpha-helix-beta-sheet sandwich similar to the domains of gelsolin and villin, and contains two cation-binding sites, as observed in other domain 1 and domain 2 homologues. Comparison of the structures of several gelsolin family domains has identified residues that may mediate F-actin binding in gelsolin domain 2 homologues. To assess the involvement of these residues in F-actin binding, three mutants of human gelsolin domain 2 were assayed for F-actin binding activity and thermodynamic stability. Two of the mutants, RRV168AAA and RLK210AAA, demonstrated a lowered affinity for F-actin, indicating a role for those residues in filament binding. Using both structural and biochemical data, we have constructed a model of the gelsolin domain 1-domain 2-F-actin complex. This model highlights a number of interactions that may serve as positive and negative determinants of filament end- and side-binding.

About this Structure

1SVY is a Single protein structure of sequence from Dictyostelium discoideum. Full crystallographic information is available from OCA.

Reference

Mapping the functional surface of domain 2 in the gelsolin superfamily., Puius YA, Fedorov EV, Eichinger L, Schleicher M, Almo SC, Biochemistry. 2000 May 9;39(18):5322-31. PMID:10820002

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