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. 2023 May 19;18(5):e0285343. doi: 10.1371/journal.pone.0285343

Fig 6. Interdomain flexibility between the β-collar and RBM3.

Fig 6

(A) Superposition of the β-collar from this study (red) superimposed with the equivalent region in the coordinates deposited by Johnson et al (cyan, PDB:6SCN [17]) highlights a 5.7° difference in angle between the β-collar and RBM3, as calculated using DynDom [37]. This translates into a shift of position of RBM3 of 5.4 Å and a ~10 Å difference in diameter of the MS-ring, even with the same number of protomers. (B) The outer diameter (measured from chain A, Leu-402 to chain Q, Leu-402) and inner diameter (measured from chain A, Leu-298 to chain Q, Leu-298) of the MS-ring structure finds an outer and inner diameter of our structure of 242 Å and 104 Å, respectively. (C) Using equivalent residues for the measurement, the outer and inner diameter of the MS-ring structure from PDB:6SCN [17] is 232 Å and 99 Å, respectively.