Schematic representation of Arabidopsis
DWF1 locus with characterized mutations (A) and aligned
amino acid sequences of proposed FAD-binding domains from various
oxidoreductases (B). Elucidation of DWF1 organization
resulted from comparison of cDNA with genomic DNA. Sites of the
FAD-binding domain (Mushegian and Koonin, 1996; Fraaije et al., 1998)
and mutations identified from dwf1 alleles, including
dim (dwf1-2; Takahashi et al., 1995) and
cbb1 (dwf1-6; Kauschmann et al., 1996),
are indicated. Sequences corresponding to the region of the FAD-binding
domain depicted in A are aligned to show conserved residues and
relative positions of mutations. Accession numbers for the following
are given in parentheses: DEHYD_BRAOL (2760543), GULOX_RAT (625202),
GLCOX_HPY (2313619), HYPO_BSUB (1770026), DLDEHYD_AF (2650235),
GLCOX_AF (2649802), GLCOX_ECOLI (1707917), ADAS_HUMAN (2498106),
HYPO_ARABI (2618686), OXRE_RF (1169648), HYPO_MLE (3150105), BBE_ECALI
(400972), DIM_HUMAN (3182980), DIM_CELE (3182979), DIM_PEA (3182981),
DWF1 (U12400). Similar sequences were identified using gapped BLAST
(Altschul et al., 1997), followed by alignment using PileUp software
(GCG). Box shading was carried out using the ALSCRIPT package developed
by Barton (1993).