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Interaction of D2 and D3 deletion mutants with FLN-A. Schematic representation of D2L (A) and D3 (B) IC3 domain constructs tested for interaction with FLN-A (residues 1788–2121) in the two-hybrid assay. Interaction with FLN-A is indicated by the presence (+) or absence (−) of β-galactosidase activity. The alternatively spliced 29-aa exon in D2L is indicated by a shaded box.
