Maize contains two esc homologs. A, The
protein sequences of the two maize esc homologs, ZmFIE1
(AY061964), ZmFIE2 (AY061965), Arabidopsis FIE (AAD23584),
fruit fly ESC (AAF53124), and the human WAIT-1 (AAC68675) were aligned
using ClustalW. The identities and amino acid position for each
sequence is shown on the left. The alignment was shaded with Boxshade
such that the conserved residues are colored black and the similar
residues are gray. The location of the WD40 repeats is indicated above
the alignment. B, The protein sequences of ZmFIE1, ZmFIE2, FIE, ESC,
and WAIT-1 are shown as schematic diagrams with the location of the
WD40 repeats and a putative NLS indicated. The position of a putative
NLS is indicated by a black box, and the gray boxes indicate the
positions of the WD repeats. The scale of the drawings is
indicated.