5GHU:
reference: Crystal structure of the usher chaperone YadV reveals a monomer with the proline lock in closed conformation suggestive of an intermediate state., Pandey NK, Verma G, Kushwaha GS, Suar M, Bhavesh NS, FEBS Lett. 2020 Jul 10. doi: 10.1002/1873-3468.13883. PMID: 32649775

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