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Table 3 Comparison of the properties of purified M. acetivorans IscU2

From: Methanosarcina acetivorans contains a functional ISC system for iron-sulfur cluster biogenesis

Protein A438/A280 ε438 (mM−1 cm− 1) Irona Sulfideb
IscU2 0.10 0.90 0.57 ± 0.06 0.44 ± 0.04
IscU2C-FeS 0.26 6.07 2.47 ± 0.11 1.99 ± 0.24
IscU2S-FeS 0.27 5.91 3.15 ± 0.24 3.15 ± 0.39
  1. a nmol iron/nmol of IscU2
  2. b nmol acid-labile sulfide/nmol of IscU2