1zij

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[[Image:1zij.gif|left|200px]]
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{{STRUCTURE_1zij| PDB=1zij | SCENE= }}
{{STRUCTURE_1zij| PDB=1zij | SCENE= }}
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'''GCN4-LEUCINE ZIPPER CORE MUTANT ASN16ABA IN THE TRIMERIC STATE'''
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===GCN4-LEUCINE ZIPPER CORE MUTANT ASN16ABA IN THE TRIMERIC STATE===
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==Overview==
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Each protein sequence generally adopts a single native fold, but the sequence features that confer structural uniqueness are not well understood. To define the basis for structural heterogeneity, we determined the high resolution X-ray crystal structures of a single GCN4 leucine-zipper mutant (Asn 16 to aminobutyric acid) in both dimeric and trimeric coiled-coil conformations. The mutant sequence is accommodated in two distinct structures by forming similarly-shaped packing surfaces with different sets of atoms. The trimer structure, in comparison to a previously-characterized trimeric mutant with substitutions in eight core residues, shows that the twist of individual helices and the helix-helix crossing angles can vary significantly to produce the most favoured packing arrangement.
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(as it appears on PubMed at http://www.pubmed.gov), where 8946853 is the PubMed ID number.
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{{ABSTRACT_PUBMED_8946853}}
==About this Structure==
==About this Structure==
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[[Category: Nuclear protein]]
[[Category: Nuclear protein]]
[[Category: Transcription regulation]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 17:40:08 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 06:01:26 2008''

Revision as of 03:01, 29 July 2008

Image:1zij.png

Template:STRUCTURE 1zij

GCN4-LEUCINE ZIPPER CORE MUTANT ASN16ABA IN THE TRIMERIC STATE

Template:ABSTRACT PUBMED 8946853

About this Structure

1ZIJ is a Single protein structure of sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.

Reference

Crystal structures of a single coiled-coil peptide in two oligomeric states reveal the basis for structural polymorphism., Gonzalez L Jr, Brown RA, Richardson D, Alber T, Nat Struct Biol. 1996 Dec;3(12):1002-9. PMID:8946853

Page seeded by OCA on Tue Jul 29 06:01:26 2008

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