Fig 2. Radius of gyration and distance map results.
(A) Average radius of gyration (Rg) with standard error of unbound PUMA depends upon ionic strength. Simulations were performed using models of various ionic strengths from 10 mM to 250 mM (red dots). Blue dot indicates Rg obtained when charge-charge interactions are not included in the model. (B) Distance map of Cα-Cα atoms of unbound PUMA with no charge-charge interactions (left) and high charge interactions of IS = 10 mM (right). The value of distance increases from 0 Å (blue) to 35 Å (red). The difference of residue-residue distance between the PUMA without charge interaction and PUMA in 10 mM salt solution is shown in (bottom).