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.
1u6h
From Proteopedia
| Line 7: | Line 7: | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= VCL, VINC1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9031 Gallus gallus]) | |GENE= VCL, VINC1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9031 Gallus gallus]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1u6h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u6h OCA], [http://www.ebi.ac.uk/pdbsum/1u6h PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1u6h RCSB]</span> | ||
}} | }} | ||
| Line 32: | Line 35: | ||
[[Category: protein-protein complex]] | [[Category: protein-protein complex]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 00:05:59 2008'' |
Revision as of 21:05, 30 March 2008
| |||||||
| , resolution 2.38Å | |||||||
|---|---|---|---|---|---|---|---|
| Gene: | VCL, VINC1 (Gallus gallus) | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Vinculin head (0-258) in complex with the talin vinculin binding site 2 (849-879)
Overview
The cytoskeletal protein talin plays a key role in activating integrins and in coupling them to the actin cytoskeleton. Its N-terminal globular head, which binds beta integrins, is linked to an extended rod having a C-terminal actin binding site and several vinculin binding sites (VBSs). The NMR structure of residues 755-889 of the rod (containing a VBS) is shown to be an amphipathic four-helix bundle with a left-handed topology. A talin peptide corresponding to the VBS binds the vinculin head; the X-ray crystallographic structure of this complex shows that the residues which interact with vinculin are buried in the hydrophobic core of the talin fragment. NMR shows that the interaction involves a major structural change in the talin fragment, including unfolding of one of its helices, making the VBS accessible to vinculin. Interestingly, the talin 755-889 fragment binds more than one vinculin head molecule, suggesting that the talin rod may contain additional as yet unrecognized VBSs.
About this Structure
1U6H is a Protein complex structure of sequences from Gallus gallus. Full crystallographic information is available from OCA.
Reference
A vinculin binding domain from the talin rod unfolds to form a complex with the vinculin head., Fillingham I, Gingras AR, Papagrigoriou E, Patel B, Emsley J, Critchley DR, Roberts GC, Barsukov IL, Structure. 2005 Jan;13(1):65-74. PMID:15642262
Page seeded by OCA on Mon Mar 31 00:05:59 2008
