Mutations throughout an Arabidopsis blue-light photoreceptor impair blue-light-responsive anthocyanin accumulation and inhibition of hypocotyl elongation.

Abstract excerpt

This paper reports the characterization of novel mutations within the Arabidopsis thaliana HY4 gene, which has previously been shown to encode a protein (CRY1) with characteristics of a blue-light photoreceptor. Several point mutations were identified within the amino-terminal domain of CRY1--this region of CRY1 has high homology to photolyase and is likely to be involved in blue-light-mediated electron transfer....

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