7C7S:
reference: Cryo-EM structures of inactive and active GABAB receptor., Mao C, Shen C, Li C, Shen DD, Xu C, Zhang S, Zhou R, Shen Q, Chen LN, Jiang Z, Liu J, Zhang Y, Cell Res. 2020 Jun 3. pii: 10.1038/s41422-020-0350-5. doi:, 10.1038/s41422-020-0350-5. PMID: 32494023

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