Characterization of the [3Fe–4S]0/1+ cluster from the D14C variant of Pyrococcus furiosus ferredoxin via combined NRVS and DFT analyses†
Abstract
The D14C variant of Pyrococcus furiosus ferredoxin provides an extraordinary framework to investigate a [3Fe–4S] cluster at two oxidation levels and compare the results to its physiologic [4Fe–4S] counterpart in the very same protein. Our spectroscopic and computational study reveals vibrational property changes related to the electronic and structural aspects of both Fe–S clusters.