4NUI:
reference: Probing the equatorial groove of the hookworm protein and vaccine candidate antigen, Na-ASP-2., Mason L, Tribolet L, Simon A, von Gnielinski N, Nienaber L, Taylor P, Willis C, Jones MK, Sternberg PW, Gasser RB, Loukas A, Hofmann A, Int J Biochem Cell Biol. 2014 May;50:146-55. doi: 10.1016/j.biocel.2014.03.003., Epub 2014 Mar 13. PMID: 24631931

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