Biological Assembly 1  

 3D View: Structure | Electron Density

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Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

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

Biological Assembly 2  

 3D View: Structure | Electron Density

Standalone Viewers  
Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 2 assigned by authors and generated by (software)

Macromolecule Content

• Total Structure Weight: 21896.42 
• Atom Count: 1542 
• Residue Count: 220 
• Unique protein chains: 1

4XCR

Monomeric Human Cu,Zn Superoxide dismutase, loops IV and VII deleted, apo form, mutant I35A

• DOI: 10.2210/pdb4XCR/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): 1 


• Deposited: 2014-12-18 Released: 2016-01-20 
• Deposition Author(s): Wang, H., Logan, D.T., Danielsson, J., Mu, X., Binolfi, A., Theillet, F., Bekei, B., Lang, L., Wennerstrom, H., Selenko, P., Oliveberg, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.602 Å
• R-Value Free: 0.239 
• R-Value Work: 0.185 

Literature

Thermodynamics of protein destabilization in live cells.

Danielsson, J., Mu, X., Lang, L., Wang, H., Binolfi, A., Theillet, F.X., Bekei, B., Logan, D.T., Selenko, P., Wennerstrom, H., Oliveberg, M.

(2015) Proc. Natl. Acad. Sci. U.S.A. 112: 12402-12407

• PubMed: 26392565 
• DOI: 10.1073/pnas.1511308112


• PubMed Abstract: 
  

Although protein folding and stability have been well explored under simplified conditions in vitro, it is yet unclear how these basic self-organization events are modulated by the crowded interior of live cells. To find out, we use here in-cell NMR to follow at atomic resolution the thermal unfolding of a β-barrel protein inside mammalian and bacterial cells. Challenging the view from in vitro crowding effects, we find that the cells destabilize the protein at 37 °C but with a conspicuous twist: While the melting temperature goes down the cold unfolding moves into the physiological regime, coupled to an augmented heat-capacity change. The effect seems induced by transient, sequence-specific, interactions with the cellular components, acting preferentially on the unfolded ensemble. This points to a model where the in vivo influence on protein behavior is case specific, determined by the individual protein's interplay with the functionally optimized "interaction landscape" of the cellular interior.

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Organizational Affiliation: 

Department of Biochemistry and Biophysics, Arrhenius Laboratories of Natural Sciences, Stockholm University, 10691 Stockholm, Sweden; [e-mail] [e-mail].

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Superoxide dismutase [Cu-Zn]	A, B	110	Homo sapiens	Mutation(s): 1  Gene Names: SOD1 EC: 1.15.1.1
Find proteins for P00441 (Homo sapiens) Go to Gene View: SOD1 Go to UniProtKB:  P00441

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.602 Å
• R-Value Free: 0.239 
• R-Value Work: 0.185 
• Space Group: P 6₅

Unit Cell:

Length (Å)	Angle (°)
a = 70.820	α = 90.00
b = 70.820	β = 90.00
c = 70.010	γ = 120.00

Software Package:

Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
MOLREP	phasing
Aimless	data scaling
MOSFLM	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2014-12-18 
• Released Date: 2016-01-20 
• Deposition Author(s): Wang, H., Logan, D.T., Danielsson, J., Mu, X., Binolfi, A., Theillet, F., Bekei, B., Lang, L., Wennerstrom, H., Selenko, P., Oliveberg, M.

Revision History 

• Version 1.0: 2016-01-20
  Type: Initial release
• Version 1.1: 2018-01-17
  Type: Data collection
• Version 1.2: 2018-11-28
  Type: Data collection, Database references