4xcr

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== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/SODC_HUMAN SODC_HUMAN]] Destroys radicals which are normally produced within the cells and which are toxic to biological systems.
[[http://www.uniprot.org/uniprot/SODC_HUMAN SODC_HUMAN]] Destroys radicals which are normally produced within the cells and which are toxic to biological systems.
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== Publication Abstract from PubMed ==
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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 beta-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 degrees 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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Thermodynamics of protein destabilization in live cells.,Danielsson J, Mu X, Lang L, Wang H, Binolfi A, Theillet FX, Bekei B, Logan DT, Selenko P, Wennerstrom H, Oliveberg M Proc Natl Acad Sci U S A. 2015 Oct 6;112(40):12402-7. doi:, 10.1073/pnas.1511308112. Epub 2015 Sep 21. PMID:26392565<ref>PMID:26392565</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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==See Also==
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*[[Superoxide Dismutase|Superoxide Dismutase]]
== References ==
== References ==
<references/>
<references/>

Revision as of 20:40, 2 December 2018

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

4xcr, resolution 3.60Å

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