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CryoEM dataset containing multiple conformations of the asymmetric αVβ8 integrin bound to latent TGF-β on a holey carbon grid (strongly preferred orientations)

ABSTRACT:

SUBMITTER: Melody Grace Campbell

PROVIDER: EMPIAR-10343 | biostudies-other |

REPOSITORIES: biostudies-other

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Cryo-EM Reveals Integrin-Mediated TGF-β Activation without Release from Latent TGF-β.

Campbell Melody G MG Cormier Anthony A Ito Saburo S Seed Robert I RI Bondesson Andrew J AJ Lou Jianlong J Marks James D JD Baron Jody L JL Cheng Yifan Y Nishimura Stephen L SL

Cell 20200116 3

Integrin αvβ8 binds with exquisite specificity to latent transforming growth factor-β (L-TGF-β). This binding is essential for activating L-TGF-β presented by a variety of cell types. Inhibiting αvβ8-mediated TGF-β activation blocks immunosuppressive regulatory T cell differentiation, which is a potential therapeutic strategy in cancer. Using cryo-electron microscopy, structure-guided mutagenesis, and cell-based assays, we reveal the binding interactions between the entire αvβ8 ectodomain and it ...[more]

PMID: 31955848

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