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(A) Schematic diagram of the M-protein. The hypervariable region, B and C-repeat regions (CRR) and C-repeat units (CRUs) are depicted. The location of J14i variant peptide sequences within each of the CRUs are shown as black boxes. The figure is not drawn to scale. (B) Schematic of SV1. The location and identity of each J14i sequence is shown.
