1.3.7.7 Fe2+ DPOR contains 7.23 mol Fe2+ per NB-protein 686758 1.3.7.7 Fe2+ in [4Fe-4S] clusters 726526 1.3.7.7 Fe2+ in [4Fe–4S] clusters 726526 1.3.7.7 Fe2+ iron-sulfur cluster in the NB protein 713102 1.3.7.7 Fe2+ the enzyme contains intersubunit [4Fe-4S] cluster in the homodimer formed by two ChlL subunits. The [4Fe-4S] cluster coordinated by an aspartate oxygen alongside three cysteine ligands, structure, overview 712465 1.3.7.7 Fe2+ the homodimeric ChlL2 subunit carries a [4Fe-4S] cluster 725412 1.3.7.7 Fe2+ the purified, recombinant protein L contains 3.6 mol of Fe/mol of protein L homodimer, consistent with the presence of a [4Fe-4S] cluster 711198 1.3.7.7 Fe2+ transfer of a single electron from the [4Fe-4S] cluster of ChlL2 onto a second [4Fe-4S] cluster located on (ChlN/ChlB)2 725877 1.3.7.7 Fe2+ two redox-active [4Fe-4S] clusters, both [4Fe-4S] clusters are centered around the extended axis: the L2 cluster is symmetrically ligated by four cysteinyl ligands between the two subunits, whereas the NB cluster is asymmetrically ligated by three cysteine residues from subunit N and one aspartate residue from subunit B 726394 1.3.7.7 Mg2+ - 712465, 713102 1.3.7.7 Mg2+ required 726255, 726394, 726526