A single monomeric iron center in clavaminate synthase catalyzes three nonsuccessive oxidative transformations
作者:Robert W Busby、Craig A Townsend
DOI:10.1016/0968-0896(96)00088-0
日期:1996.7
The trifunctional oxygenase clavaminatesynthase 2 (CS2) catalyses a hydroxylation reaction and two coupled oxidative reactions, a cyclization and a desaturation, in a nonsuccessive manner. A series of experiments was performed to elucidate the number of CS2 catalytic site(s) utilized in the three oxidative transformations. The stoichiometry of FeII required by CS2 was determined to be one ion per
Cysteine-Based Mimic of Arginylation Reproduces Neuroprotective Effects of the Authentic Post-Translational Modification on α-Synuclein
作者:Buyan Pan、Marie Shimogawa、Jun Zhao、Elizabeth Rhoades、Anna Kashina、E. James Petersson
DOI:10.1021/jacs.2c02499
日期:2022.5.4
arginylated αS. We find that, consistent with authentically arginylated αS, mimic-arginylated αS does not perturb the protein’s native function but altersaggregationkinetics and monomer incorporation. Both mimic and authentically modified αS suppress aggregation in neuronal cells. Our results provide further insight into the neuroprotective effects of αS arginylation, and our alternative strategy to generate