4AE2:
reference: Structural basis of fibrillar collagen trimerization and related genetic disorders., Bourhis JM, Mariano N, Zhao Y, Harlos K, Exposito JY, Jones EY, Moali C, Aghajari N, Hulmes DJ, Nat Struct Mol Biol. 2012 Oct;19(10):1031-6. doi: 10.1038/nsmb.2389. Epub 2012, Sep 23. PMID: 23001006

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