4XCR

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


Experimental Data Snapshot

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

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

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

  • 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 ...

    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.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, Arrhenius Laboratories of Natural Sciences, Stockholm University, 10691 Stockholm, Sweden; mikael.oliveberg@dbb.su.se jens.danielsson@dbb.su.se.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Superoxide dismutase [Cu-Zn]
A, B
110Homo sapiensMutation(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 = 70.820α = 90.00
b = 70.820β = 90.00
c = 70.010γ = 120.00
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
MOLREPphasing
Aimlessdata scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

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