1vrz
From Proteopedia
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|PDB= 1vrz |SIZE=350|CAPTION= <scene name='initialview01'>1vrz</scene>, resolution 1.05Å | |PDB= 1vrz |SIZE=350|CAPTION= <scene name='initialview01'>1vrz</scene>, resolution 1.05Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand= | + | |LIGAND= <scene name='pdbligand=23F:(2Z)-2-AMINO-3-PHENYLACRYLIC+ACID'>23F</scene>, <scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1vrz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1vrz OCA], [http://www.ebi.ac.uk/pdbsum/1vrz PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1vrz RCSB]</span> | ||
}} | }} | ||
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[[Category: Rudresh]] | [[Category: Rudresh]] | ||
[[Category: Sahal, D.]] | [[Category: Sahal, D.]] | ||
| - | [[Category: | + | [[Category: hth,helix-turn-helix motif]] |
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| - | ''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 00:27:58 2008'' |
Revision as of 21:27, 30 March 2008
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| , resolution 1.05Å | |||||||
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| Ligands: | , , , | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Helix turn helix motif
Overview
De novo design of supersecondary structures is expected to provide useful molecular frameworks for the incorporation of functional sites as in proteins. A 21 residue long, dehydrophenylalanine-containing peptide has been de novo designed and its crystal structure determined. The apolar peptide folds into a helical hairpin supersecondary structure with two right-handed helices, connected by a tetraglycine linker. The helices of the hairpin interact with each other through a combination of C-H.O and N-H.O hydrogen bonds. The folding of the apolar peptide has been realized without the help of either metal ions or disulphide bonds. A remarkable feature of the peptide is the unanticipated occurrence of an anion binding motif in the linker region, strikingly similar in conformation and function to the "nest" motif seen in several proteins. The observation supports the view for the possible emergence of rudimentary functions over short sequence stretches in the early peptides under prebiotic conditions.
About this Structure
1VRZ is a Protein complex structure of sequences from [1]. This structure supersedes the now removed PDB entry 1Q4F. Full crystallographic information is available from OCA.
Reference
De novo design and characterization of a helical hairpin eicosapeptide; emergence of an anion receptor in the linker region., Rudresh, Ramakumar S, Ramagopal UA, Inai Y, Goel S, Sahal D, Chauhan VS, Structure. 2004 Mar;12(3):389-96. PMID:15016355
Page seeded by OCA on Mon Mar 31 00:27:58 2008
