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Bitte verwenden Sie diesen Link, wenn Sie dieses Dokument zitieren oder verlinken wollen: https://nbn-resolving.org/urn:nbn:de:gbv:9-opus-44310

Molecular basis for the distinct functions of redox-active and FeS-transfering glutaredoxins

  • Despite their very close structural similarity, CxxC/S-type (class I) glutaredoxins (Grxs) actas oxidoreductases, while CGFS-type (class II) Grxs act as FeS cluster transferases. Here weshow that the key determinant of Grx function is a distinct loop structure adjacent to theactive site. Engineering of a CxxC/S-type Grx with a CGFS-type loop switched its functionfrom oxidoreductase to FeS transferase. Engineering of a CGFS-type Grx with a CxxC/S-typeloop abolished FeS transferase activity and activated the oxidative half reaction of the oxi-doreductase. The reductive half-reaction, requiring the interaction with a second GSHmolecule, was enabled by switching additional residues in the active site. We explain howsubtle structural differences, mostly depending on the structure of one particular loop, act inconcert to determine Grx function.

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Metadaten
Author: Manuela GellertORCiD, Daniel Trnka, Anna D. Engelke, Anna Moseler, Faruq Hossain, Tobias Lindenberg, Luca Pedroletti, Benjamin Odermatt, Joao Souza, Agnieszka Bronowska, Tobias Dick, Uli Mühlenhoff, Andreas Meyer, Carsten Berndt, Christopher Horst Lillig
URN:urn:nbn:de:gbv:9-opus-44310
DOI:https://doi.org/https://doi.org/10.1038/s41467-020-17323-0
ISSN:2041-1723
Parent Title (English):Nature Communications
Publisher:Springer Nature
Place of publication:London
Document Type:Article
Language:English
Date of first Publication:2020/06/18
Release Date:2021/03/23
Volume:11
Article Number:3445
Page Number:12
Faculties:Universitätsmedizin / Institut für Med. Biochemie u. Molekularbiologie
Collections:Artikel aus DFG-gefördertem Publikationsfonds
Licence (German):License LogoCreative Commons - Namensnennung