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[[Image:2zta.gif|left|200px]]
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{{STRUCTURE_2zta|  PDB=2zta  |  SCENE=  }}
'''X-RAY STRUCTURE OF THE GCN4 LEUCINE ZIPPER, A TWO-STRANDED, PARALLEL COILED COIL'''


==X-RAY STRUCTURE OF THE GCN4 LEUCINE ZIPPER, A TWO-STRANDED, PARALLEL COILED COIL==
<StructureSection load='2zta' size='340' side='right'caption='[[2zta]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2zta]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. The October 2005 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Designer Proteins''  by David S. Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2005_10 10.2210/rcsb_pdb/mom_2005_10]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZTA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ZTA FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.8&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2zta FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zta OCA], [https://pdbe.org/2zta PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2zta RCSB], [https://www.ebi.ac.uk/pdbsum/2zta PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2zta ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/GCN4_YEAST GCN4_YEAST] Is a transcription factor that is responsible for the activation of more than 30 genes required for amino acid or for purine biosynthesis in response to amino acid or purine starvation. Binds and recognize the DNA sequence: 5'-TGA[CG]TCA-3'.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The x-ray crystal structure of a peptide corresponding to the leucine zipper of the yeast transcriptional activator GCN4 has been determined at 1.8 angstrom resolution. The peptide forms a parallel, two-stranded coiled coil of alpha helices packed as in the "knobs-into-holes" model proposed by Crick in 1953. Contacts between the helices include ion pairs and an extensive hydrophobic interface that contains a distinctive hydrogen bond. The conserved leucines, like the residues in the alternate hydrophobic repeat, make side-to-side interactions (as in a handshake) in every other layer of the dimer interface. The crystal structure of the GCN4 leucine zipper suggests a key role for the leucine repeat, but also shows how other features of the coiled coil contribute to dimer formation.


==Overview==
X-ray structure of the GCN4 leucine zipper, a two-stranded, parallel coiled coil.,O'Shea EK, Klemm JD, Kim PS, Alber T Science. 1991 Oct 25;254(5031):539-44. PMID:1948029<ref>PMID:1948029</ref>
The x-ray crystal structure of a peptide corresponding to the leucine zipper of the yeast transcriptional activator GCN4 has been determined at 1.8 angstrom resolution. The peptide forms a parallel, two-stranded coiled coil of alpha helices packed as in the "knobs-into-holes" model proposed by Crick in 1953. Contacts between the helices include ion pairs and an extensive hydrophobic interface that contains a distinctive hydrogen bond. The conserved leucines, like the residues in the alternate hydrophobic repeat, make side-to-side interactions (as in a handshake) in every other layer of the dimer interface. The crystal structure of the GCN4 leucine zipper suggests a key role for the leucine repeat, but also shows how other features of the coiled coil contribute to dimer formation.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
2ZTA is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. The following page contains interesting information on the relation of 2ZTA with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb70_1.html Designer Proteins]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZTA OCA].
</div>
<div class="pdbe-citations 2zta" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
X-ray structure of the GCN4 leucine zipper, a two-stranded, parallel coiled coil., O'Shea EK, Klemm JD, Kim PS, Alber T, Science. 1991 Oct 25;254(5031):539-44. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/1948029 1948029]
*[[Gcn4 3D Structures|Gcn4 3D Structures]]
*[[Gnc4 3D Structures|Gnc4 3D Structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Designer Proteins]]
[[Category: Designer Proteins]]
[[Category: Large Structures]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Single protein]]
[[Category: Alber T]]
[[Category: Alber, T.]]
[[Category: Kim PS]]
[[Category: Kim, P S.]]
[[Category: Klemm JD]]
[[Category: Klemm, J D.]]
[[Category: O'Shea EK]]
[[Category: Shea, E K.O.]]
[[Category: Leucine zipper]]
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Retrieved from "https://proteopedia.org/2zta"