1u9g
From Proteopedia
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| - | [[Image:1u9g.jpg|left|200px]] | + | [[Image:1u9g.jpg|left|200px]] |
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| - | '''Heterocyclic Peptide Backbone Modification in GCN4-pLI Based Coiled Coils: Replacement of K(8)L(9)''' | + | {{Structure |
| + | |PDB= 1u9g |SIZE=350|CAPTION= <scene name='initialview01'>1u9g</scene>, resolution 2.20Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=SO4:SULFATE ION'>SO4</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''Heterocyclic Peptide Backbone Modification in GCN4-pLI Based Coiled Coils: Replacement of K(8)L(9)''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1U9G is a [ | + | 1U9G is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U9G OCA]. |
==Reference== | ==Reference== | ||
| - | Heterocyclic peptide backbone modifications in an alpha-helical coiled coil., Horne WS, Yadav MK, Stout CD, Ghadiri MR, J Am Chem Soc. 2004 Dec 1;126(47):15366-7. PMID:[http:// | + | Heterocyclic peptide backbone modifications in an alpha-helical coiled coil., Horne WS, Yadav MK, Stout CD, Ghadiri MR, J Am Chem Soc. 2004 Dec 1;126(47):15366-7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15563148 15563148] |
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
[[Category: Ghadiri, M R.]] | [[Category: Ghadiri, M R.]] | ||
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[[Category: tetrameric alpha-helical coiled coil with heteerocycic backbone modification]] | [[Category: tetrameric alpha-helical coiled coil with heteerocycic backbone modification]] | ||
| - | ''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 14:29:04 2008'' |
Revision as of 12:29, 20 March 2008
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| , resolution 2.20Å | |||||||
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| Coordinates: | save as pdb, mmCIF, xml | ||||||
Heterocyclic Peptide Backbone Modification in GCN4-pLI Based Coiled Coils: Replacement of K(8)L(9)
Overview
In this paper, we present 1,2,3-triazole epsilon2-amino acids incorporated as a dipeptide surrogate at three positions in the sequence of a known alpha-helical coiled coil. Biophysical characterization indicates that the modified peptides retain much of the helical structure of the parent sequence, and that the thermodynamic stability of the coiled coil depends on the position of the incorporation of the epsilon-residue. Crystal structures obtained for each peptide give insight into the chemical behavior and conformational preferences of the non-natural amino acid and show that the triazole ring can participate in the backbone hydrogen bonding of the alpha-helix as well as template an interhelical crossing between chains in the bundle.
About this Structure
1U9G is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.
Reference
Heterocyclic peptide backbone modifications in an alpha-helical coiled coil., Horne WS, Yadav MK, Stout CD, Ghadiri MR, J Am Chem Soc. 2004 Dec 1;126(47):15366-7. PMID:15563148
Page seeded by OCA on Thu Mar 20 14:29:04 2008
