The four-member SPA protein family of Arabidopsis acts in concert with the E3 ubiquitin ligase
COP1 to suppress photomorphogenesis in dark-grown seedlings. Here, we demonstrate …

… The TARs (and exons annotated in TAIR7 as a control) were counted as ‘confirmed’ by
MPSS if they contained one or more MPSS tag(s) regardless of the genomic strand to which the …

The processing of Arabidopsis thaliana microRNAs (miRNAs) from longer primary transcripts
(pri-miRNAs) requires the activity of several proteins, including DICER-LIKE1 (DCL1), the …

MicroRNAs (miRNAs) are short regulatory RNAs processed from partially self-complementary
foldbacks within longer MIRNA primary transcripts. Several MIRNA families are conserved …

MicroRNAs (miRNAs) are processed from primary transcripts that contain partially self-complementary
foldbacks. As in animals, the core microprocessor in plants is a Dicer protein, …

… Recombinant 35 S-labeled COP1 was incubated with partially 35 S-labeled GAD-SPA2 or
GAD, respectively, and coimmunoprecipitated with anti-GAD antibodies. Supernatant fractions …

… S-labeled SPA1 to SPA4 were incubated with GAD-SPA1 or … S-labeled SPA1 to SPA4
were incubated with GAD-SPA2, … ) were used to pull down [ 35 S]Met-labeled SPA proteins …

… As a result, mutations in RACK1 lead to over‐accumulation of miRNA target mRNA s,
which are important for ABA responses and phyllotaxy, for example. In conclusion, our study …

… Although more complex than AtRTD2, we predicted that the majority of isoforms with intron
retention represent intermediates of splicing where an intron(s) had not been removed at the …

… To define the domain(s) in COP1 responsible for binding to SPA3 and SPA4, we employed
deletion-derivatives of COP1 in the in vitro interaction assay. No interaction could be …