2.9kb genomic fragment that encompasses the entire wash gene. The wash nuclear localisation signal has been disrupted (WKRS to AAAA amino acid change). A strong nuclear export signal (LDELLELLRL) followed by a GFP tag has been added to the N-terminal end of the wash coding sequence.
wash+NESΔNLS.GFP fails tp rescue washΔ185, leading to similar nuclear phenotypes as washΔ185 alone (i.e. fails to rescues defects in nucleus shape, nucleus volume, Cajal body and nucleolus).