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Fig. 1. (A) Dot matrix analysis of dynein 2 HC. Rat dynein 2 HC sequence (database
accession no. AB041881; abscissa) is compared with rat dynein 1 HC [ordinate
for the top; accession no. L08505 (Mikami
et al., 1993); accession no. D13896
(Zhang et al., 1993)] or
C. elegans dynein 2 HC (ordinate for the bottom; F18C12.1, accession
number Z75536). A schematic drawing of each gene product is given. The
location of the six AAA (ATPases associated with a variety of cellular
activities) modules (light brown boxes marked as A1 to A6) and P-loop motifs
(in the 1st to 4th AAA modules only, shown as a red bar) is assigned on the
basis of Neuwald et al. (Neuwald et al.,
1999) using a sequence alignment. Coiled-coil prediction on the
basis of a computer program (Lupas et al.,
1991) is also shown as a blue histogram on top of each domain
diagram. Locations of the three major stretches predicted to be coiled-coil
are annotated as C1 to C3. In the box for the dynein 1 HC (top), the HC
dimerization (HC), the IC-binding site (IC), and the LIC binding (LIC) sites
(Tynan et al., 2000a) are
given. Similar regions detected in dynein 2 and dynein 1 in the N-terminal
third are shown in red in the top box (see Results). In the C.
elegans dynein 2 HC, the hatched box shows the location of an exon on the
genome sequence (reverse-complement sequence of nucleotides 8863-9000 in the
Z75536 sequence), which has been ignored by the computer program for
prediction and has been newly identified by the comparison with rat dynein 2
HC sequence. (B) Dot matrix analyses of LIC3 (ordinate; human CGI-60 sequence,
accession no. AF151818) compared with rat LIC 2 [left box abscissa; accession
no. U15138 (Hughes et al.,
1995)] or C. elegans sequence F02D8.3 (C.
elegans LIC3 in the right box abscissa; accession no. CAB01645). In
mammalian LICs, the location of the P-loop motif is shown as a red bar.