Differential expression of five Arabidopsis genes encoding glycine-rich proteins.

Five cDNA clones coding for glycine-rich proteins in Arabidopsis thaliana were isolated. The corresponding genes are present in the genome as single copies. The derived protein sequences contain highly repetitive glycine-rich motifs. There is, however, little homology among them, nor with previously described glycine-rich proteins from other species. All five genes are expressed in leaves and stems of 6-week-old plants but show different patterns of expression in other organ systems. Analysis of the effect of different external stimuli on the expression pattern showed that, in most cases, the transcript levels were moderately but selectively affected. With flooding stress, the accumulated level of the transcript from one of the genes was remarkably increased.

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