Beta-AMYLASE4, a noncatalytic protein required for starch breakdown, acts upstream of three active beta-amylases in Arabidopsis chloroplasts.
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Plant Cell. 2008 Apr;20(4):1040-58. doi: 10.1105/tpc.107.056507. Epub 2008 Apr 4.
Plant Cell. 2008.
PMID: 18390594
Free PMC article.