Abstract
In this issue of Structure, Gonzalez etal. present the cryo-EM structure of Karyopherin-β2 bound to the proline-tyrosine nuclear localization signal (PY-NLS) of heterogeneous nuclear ribonucleoprotein H2 (HNRNPH2). The structure advances our understanding of not only the diversity of PY-NLSs but also the pathogenic mechanisms arising from HNRNPH2 variants.
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