2EFR | pdb_00002efr

Crystal structure of the c-terminal tropomyosin fragment with N- and C-terminal extensions of the leucine zipper at 1.8 angstroms resolution

• PDB DOI: https://doi.org/10.2210/pdb2EFR/pdb

• Classification: CONTRACTILE PROTEIN
• Organism(s): Saccharomyces cerevisiae, Oryctolagus cuniculus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2007-02-23 Released: 2008-03-04 
• Deposition Author(s): Minakata, S., Nitanai, Y., Maeda, K., Oda, N., Wakabayashi, K., Maeda, Y.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 
  0.316 (Depositor), 0.240 (DCC) 
• R-Value Work: 
  0.237 (Depositor), 0.240 (DCC) 
• R-Value Observed: 
  0.237 (Depositor) 

Literature

Two crystal structures of tropomyosin C-terminal fragment 176-273: exposure of the hydrophobic core to the solvent destabilizes the tropomyosin molecule

Minakata, S., Nitanai, Y., Maeda, K., Oda, N., Wakabayashi, K., Maeda, Y.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 73.35 kDa 
• Atom Count: 6,578 
• Modelled Residue Count: 618 
• Deposited Residue Count: 620 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
General control protein GCN4 and Tropomyosin 1 alpha chain	A, B, C, D	155	Saccharomyces cerevisiae, Oryctolagus cuniculus This entity is chimeric	Mutation(s): 1
UniProt
Find proteins for P03069 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P03069  Go to UniProtKB:  P03069
Find proteins for P58772 (Oryctolagus cuniculus) Explore P58772  Go to UniProtKB:  P58772
UniProt Groups	P03069P58772

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free:  0.316 (Depositor), 0.240 (DCC) 
• R-Value Work:  0.237 (Depositor), 0.240 (DCC) 
• R-Value Observed: 0.237 (Depositor) 

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.363	α = 66.4
b = 65.84	β = 89.93
c = 71.135	γ = 90.03

Software Package:

Software Name	Purpose
PHASER	phasing
CNS	refinement
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-03-04 
Deposition Author(s): Minakata, S., Nitanai, Y., Maeda, K., Oda, N., Wakabayashi, K., Maeda, Y.

Revision History  

• Version 1.0: 2008-03-04
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.2: 2017-08-23
  Changes: Refinement description, Source and taxonomy
• Version 1.3: 2021-11-10
  Changes: Database references
• Version 1.4: 2024-05-29
  Changes: Data collection