The genetic element contains the 5' untranslated region (intron) of
the At1g01170 locus, which encodes an ozone-responsive stress-like
protein (DUF1138) on chromosome 1. The transcript of At1g01170
accumulates during late seed development (curled embryo onward) and
can be found at high accumulation levels in the dry seed. The
intron enhances seed-specific expression of the downstream protein.
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