Supplementary Materials

This PDF file includes:

• Fig. S1. 1D6 preferentially recognizes nonmethylated PP2A C subunit.
• Fig. S2. Phosphorylation of Thr³⁰⁴ or Tyr³⁰⁷ influences epitope recognition by PP2A C-terminal antibodies.
• Fig. S3. 1D6 and other C-terminal antibodies do not immunoprecipitate two major PP2A holoenzyme families.
• Fig. S4. 7C10 specifically recognizes methylated PP2A C, and 2A10 also recognizes methylated PP4 C.
• Table S1. Antibodies used in this study.

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