1vrz

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[[Image:1vrz.png|left|200px]]
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==Helix turn helix motif==
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<StructureSection load='1vrz' size='340' side='right' caption='[[1vrz]], [[Resolution|resolution]] 1.05&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1vrz]] is a 1 chain structure. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1q4f 1q4f]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VRZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1VRZ FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene></td></tr>
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<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=23F:(2Z)-2-AMINO-3-PHENYLACRYLIC+ACID'>23F</scene>, <scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><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.rcsb.org/pdb/explore.do?structureId=1vrz RCSB], [http://www.ebi.ac.uk/pdbsum/1vrz PDBsum]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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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.
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{{STRUCTURE_1vrz| PDB=1vrz | SCENE= }}
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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<ref>PMID:15016355</ref>
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===Helix turn helix motif===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_15016355}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[1vrz]] is a 1 chain structure. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1q4f 1q4f]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VRZ OCA].
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</StructureSection>
[[Category: Inai, Y.]]
[[Category: Inai, Y.]]
[[Category: Ramagopal, U A.]]
[[Category: Ramagopal, U A.]]

Revision as of 08:29, 8 October 2014

Helix turn helix motif

1vrz, resolution 1.05Å

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