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Graphical presentation of the results used to define mode 2 assembly. Residues from three distinct regions of the subunit were found to confer assembly competence: V44I and A45V; S66Y, K68R, and S73A; and N169R, E172D, and G173K. Hβ1* = hβ1(V44I, A45V, S66Y, K68R, and S73A). The results are presented as in Fig. 2.
