Fig. 4: FeS clusters form at low concentrations of all components and across a wide pH range.
From: Spontaneous assembly of redox-active iron-sulfur clusters at low concentrations of cysteine
Extracted UV-Vis 420 nm peaks for pH 9 solutions prepared with a L-cysteine concentration ranging from 1 to 10 mM (concentrations of FeCl3 and Na2S were both kept constant at 1 mM). b FeCl3 concentrations ranging from 0.2 to 1 mM (L-cysteine and Na2S concentrations were constant at 5 and 1 mM, respectively). c Na2S concentrations ranging from 0.2 to 1 mM (L-cysteine and FeCl3 concentrations were kept constant at 5 and 1 mM, respectively). d Extracted UV-Vis 420 nm peaks from solutions containing 5 mM L-cysteine, 1 mM FeCl3 and 1 mM Na2S prepared at pH values ranging from 8 to 12. Source data are provided as a Source data file.
