Supplementary Materials

The PDF file includes:

• Fig. S1. Signaling through BMPR1α alters T cell lineage commitment.
• Fig. S2. Cytokine production in wild-type and BMPR1α-deficient cells activated in the presence of TGF-β or IL-6.
• Fig. S3. Antigen-specific BMPR1α-deficient CD4⁺ T cells generate increased proportion of proinflammatory cells.
• Fig. S4. Transcriptional profiles of naive versus activated CD4⁺ T cells.
• Fig. S5. Membrane proximal signaling in BMPR1α-deficient and BMPR1α-sufficient CD4⁺ T cells.
• Fig. S6. DSS-induced colitis is more severe in BMPR1α^T− mice.

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Other Supplementary Material for this manuscript includes the following:

• Table S1 (Microsoft Excel format). Differentially expressed genes between wild-type and BMPR1α^T− mice using RNA-seq.
• Table S2 (Microsoft Excel format). GO analysis between wild-type and BMPR1α^T− mice using RNA-seq.