6NKL:
reference: Crystal structure of VapBC-1 from nontypeable Haemophilus influenzae and the effect of PIN domain mutations on survival during infection., Molinaro AL, Kashipathy MM, Lovell S, Battaile KP, Coussens NP, Shen M, Daines DA, J Bacteriol. 2019 Apr 1. pii: JB.00026-19. doi: 10.1128/JB.00026-19. PMID: 30936373

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