6AL0:
reference: Application of the NZ-1 Fab as a crystallization chaperone for PA tag-inserted target proteins., Tamura R, Oi R, Akashi S, Kaneko MK, Kato Y, Nogi T, Protein Sci. 2019 Jan 21. doi: 10.1002/pro.3580. PMID: 30666745

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