1t01: Difference between revisions
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[[Image:1t01.gif|left|200px]] | [[Image:1t01.gif|left|200px]] | ||
'''Vinculin complexed with the VBS1 helix from talin''' | {{Structure | ||
|PDB= 1t01 |SIZE=350|CAPTION= <scene name='initialview01'>1t01</scene>, resolution 2.06Å | |||
|SITE= | |||
|LIGAND= | |||
|ACTIVITY= | |||
|GENE= VCL ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9031 Gallus gallus]), TLN1, TLN ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus]) | |||
}} | |||
'''Vinculin complexed with the VBS1 helix from talin''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1T01 is a [ | 1T01 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus] and [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1T01 OCA]. | ||
==Reference== | ==Reference== | ||
Activation of a vinculin-binding site in the talin rod involves rearrangement of a five-helix bundle., Papagrigoriou E, Gingras AR, Barsukov IL, Bate N, Fillingham IJ, Patel B, Frank R, Ziegler WH, Roberts GC, Critchley DR, Emsley J, EMBO J. 2004 Aug 4;23(15):2942-51. Epub 2004 Jul 22. PMID:[http:// | Activation of a vinculin-binding site in the talin rod involves rearrangement of a five-helix bundle., Papagrigoriou E, Gingras AR, Barsukov IL, Bate N, Fillingham IJ, Patel B, Frank R, Ziegler WH, Roberts GC, Critchley DR, Emsley J, EMBO J. 2004 Aug 4;23(15):2942-51. Epub 2004 Jul 22. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15272303 15272303] | ||
[[Category: Gallus gallus]] | [[Category: Gallus gallus]] | ||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
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[[Category: five helix bundle]] | [[Category: five helix bundle]] | ||
''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 14:11:51 2008'' | ||
Revision as of 12:11, 20 March 2008
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| 1t01, resolution 2.06Å | |||||||||||||
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| Gene: | VCL (Gallus gallus), TLN1, TLN (Mus musculus) | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
Vinculin complexed with the VBS1 helix from talin
Overview
The interaction between the cytoskeletal proteins talin and vinculin plays a key role in integrin-mediated cell adhesion and migration. We have determined the crystal structures of two domains from the talin rod spanning residues 482-789. Talin 482-655, which contains a vinculin-binding site (VBS), folds into a five-helix bundle whereas talin 656-789 is a four-helix bundle. We show that the VBS is composed of a hydrophobic surface spanning five turns of helix 4. All the key side chains from the VBS are buried and contribute to the hydrophobic core of the talin 482-655 fold. We demonstrate that the talin 482-655 five-helix bundle represents an inactive conformation, and mutations that disrupt the hydrophobic core or deletion of helix 5 are required to induce an active conformation in which the VBS is exposed. We also report the crystal structure of the N-terminal vinculin head domain in complex with an activated form of talin. Activation of the VBS in talin and the recruitment of vinculin may support the maturation of small integrin/talin complexes into more stable adhesions.
About this Structure
1T01 is a Protein complex structure of sequences from Gallus gallus and Mus musculus. Full crystallographic information is available from OCA.
Reference
Activation of a vinculin-binding site in the talin rod involves rearrangement of a five-helix bundle., Papagrigoriou E, Gingras AR, Barsukov IL, Bate N, Fillingham IJ, Patel B, Frank R, Ziegler WH, Roberts GC, Critchley DR, Emsley J, EMBO J. 2004 Aug 4;23(15):2942-51. Epub 2004 Jul 22. PMID:15272303
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