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.
1svy
From Proteopedia
| Line 1: | Line 1: | ||
| - | [[Image:1svy.gif|left|200px]] | + | [[Image:1svy.gif|left|200px]] |
| - | + | ||
| - | '''SEVERIN DOMAIN 2, 1.75 ANGSTROM CRYSTAL STRUCTURE''' | + | {{Structure |
| + | |PDB= 1svy |SIZE=350|CAPTION= <scene name='initialview01'>1svy</scene>, resolution 1.75Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene> and <scene name='pdbligand=NA:SODIUM ION'>NA</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''SEVERIN DOMAIN 2, 1.75 ANGSTROM CRYSTAL STRUCTURE''' | ||
| + | |||
==Overview== | ==Overview== | ||
| Line 7: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
| - | 1SVY is a [ | + | 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== | ||
| - | 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:// | + | 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]] | ||
| Line 30: | Line 39: | ||
[[Category: villin]] | [[Category: villin]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''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
| |||||||
| , 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
Page seeded by OCA on Thu Mar 20 14:10:21 2008
Categories: Dictyostelium discoideum | Single protein | Almo, S C. | Eichinger, L. | Fedorov, E V. | Puius, Y A. | Schleicher, M. | Sullivan, M. | CA | NA | Actin-binding protein | Calcium | Calcium-binding | Cytoskeleton | Gelsolin | Pip2 | Severin | Villin
