5SZW:
reference: Oligomeric transition and dynamics of RNA binding by the HuR RRM1 domain in solution., Lixa C, Mujo A, de Magalhaes MTQ, Almeida FCL, Lima LMTR, Pinheiro AS, J Biomol NMR. 2018 Dec;72(3-4):179-192. doi: 10.1007/s10858-018-0217-y. Epub 2018, Dec 8. PMID: 30535889

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