5VXV:
reference: The peroxisomal AAA-ATPase Pex1/Pex6 unfolds substrates by processive threading., Gardner BM, Castanzo DT, Chowdhury S, Stjepanovic G, Stefely MS, Hurley JH, Lander GC, Martin A, Nat Commun. 2018 Jan 10;9(1):135. doi: 10.1038/s41467-017-02474-4. PMID: 29321502

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