Biological Assembly 1  

 3D View: Structure

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 8063.40 
• Atom Count: 524 
• Residue Count: 68 
• Unique protein chains: 1

2ZTA

X-RAY STRUCTURE OF THE GCN4 LEUCINE ZIPPER, A TWO-STRANDED, PARALLEL COILED COIL

• DOI: 10.2210/pdb2ZTA/pdb

• Classification: LEUCINE ZIPPER
• Organism(s): Saccharomyces cerevisiae (strain ATCC 204508 / S288c)


• Deposited: 1991-07-05 Released: 1992-10-15 
• Deposition Author(s): O'Shea, E.K., Klemm, J.D., Kim, P.S., Alber, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.8 Å
• R-Value Work: 0.179 

Literature

X-ray structure of the GCN4 leucine zipper, a two-stranded, parallel coiled coil.

O'Shea, E.K., Klemm, J.D., Kim, P.S., Alber, T.

(1991) Science 254: 539-544

• PubMed: 1948029 


• PubMed Abstract: 
  

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.

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Related Citations: 

• Evidence that the Leucine Zipper is a Coiled Coil
  O'Shea, E.K.,Rutkowski, R.,Kim, P.S.
  (1989) Science 243: 538
• X-Ray Scattering Indicates that the Leucine Zipper is a Coiled Coil
  Rasmussen, R.,Benvegnu, D.,O'Shea, E.K.,Kim, P.S.,Alber, T.
  (1991) Proc.Natl.Acad.Sci.USA 88: 561




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Organizational Affiliation: 

Howard Hughes Medical Institute, Cambridge, MA 02142.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
GCN4 LEUCINE ZIPPER	A, B	34	Saccharomyces cerevisiae (strain ATCC 204508 / S288c)	Gene Names: GCN4 (AAS3, ARG9)
Find proteins for P03069 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Go to UniProtKB:  P03069

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
ACE	A, B	NON-POLYMER	C2 H4 O		--

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.8 Å
• R-Value Work: 0.179 
• Space Group: C 1 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 101.630	α = 90.00
b = 30.350	β = 94.70
c = 21.860	γ = 90.00

Software Package:

Software Name	Purpose
X-PLOR	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1991-07-05 
• Released Date: 1992-10-15 
• Deposition Author(s): O'Shea, E.K., Klemm, J.D., Kim, P.S., Alber, T.

Revision History 

• Version 1.0: 1992-10-15
  Type: Initial release
• Version 1.1: 2008-03-25
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance