Fig. 2.
Structures of Kapβ2 bound to PY-NLSs. (A) Structure of Kapβ2 (red) bound to the PY-NLS of hnRNP A1 (green); PDB 2H4M [18]. (B) PY-NLSs of hnRNP A1 (green) and hnRNP M (magenta) upon superposition of the Kapβ2s. Epitopes 1 (N-terminal hydrophobic/basic motifs), 2 and 3 (C-terminal Rx(2–5)PY motif) structurally converge and are separated by structurally diverse linkers. (C) Sequences of the PY-NLSs in (B) and the consensus sequences.