Anders Ehrenberg
Stockholm University
90 Papers
2.3K Citations
Anders Ehrenberg is an academic researcher from Stockholm University. The author has contributed to research in topics: Electron paramagnetic resonance & Ribonucleotide reductase. The author has an hindex of 35, co-authored 90 publications.
Chat about Author
Papers
The tyrosine free radical in ribonucleotide reductase from Escherichia coli.
TL;DR: Additional isotope substitution experiments now show that the spin density of the radical must be delocalized over the aromatic ring of the tyrosine residue of the enzyme.
216
The iron center in ribonucleotide reductase from Escherichia coli.
TL;DR: Determinations by EPR of the amount of free radical suggest the possibility of more than one radical per active protein B2 molecule, and the most likely structure is an antiferromagnetically coupled pair of high spin Fe(III) with a bridging oxo-group.
212
Strong light photoinhibition of electrontransport in Photosystem II. Impairment of the function of the first quinone acceptor, QA
TL;DR: Results indicate that photoinhibition inhibits the electron transfer between pheophytin and Q A probably by impairment of the function of Q A, and the potential shift of cytochrome b -559 suggests that photo inhibition induces early conformational changes in Photosystem II.
145
Characterization of the free radical of mammalian ribonucleotide reductase.
TL;DR: Mouse fibroblast 3T6 cells, selected for resistance to hydroxyurea, were shown to overproduce protein M2, one of the two nonidentical subunits of mammalian ribonucleotide reductase, and the M2 tyrosine free radical could be regenerated by merely adding dithiothreitol in the presence of O2 to a cell extract where the radical had previously been destroyed by hydroxyUREa treatment.
134