Gene Symbol: ISA3
Description: isoamylase 3
Alias: ATISA3, F23J3.50, F23J3_50, isoamylase 3, isoamylase 3
Species: thale cress
Delatte T, Umhang M, Trevisan M, Eicke S, Thorneycroft D, Smith S, et al
. Evidence for distinct mechanisms of starch granule breakdown in plants. J Biol Chem. 2006;281:12050-9 pubmed
..Here, we present evidence that the debranching enzyme isoamylase 3 (ISA3) acts at the surface of the starch granule...
Streb S, Egli B, Eicke S, Zeeman S. The debate on the pathway of starch synthesis: a closer look at low-starch mutants lacking plastidial phosphoglucomutase supports the chloroplast-localized pathway. Plant Physiol. 2009;151:1769-72 pubmed publisher
Wattebled F, Planchot V, Dong Y, Szydlowski N, Pontoire B, Devin A, et al
. Further evidence for the mandatory nature of polysaccharide debranching for the aggregation of semicrystalline starch and for overlapping functions of debranching enzymes in Arabidopsis leaves. Plant Physiol. 2008;148:1309-23 pubmed publisher
..enzymes are found in the genome of Arabidopsis (Arabidopsis thaliana): three isoamylases (ISA1, ISA2, and ISA3) and a pullulanase (PU1). Each isoform has a specific function in the starch pathway: synthesis and/or degradation...
Streb S, Delatte T, Umhang M, Eicke S, Schorderet M, Reinhardt D, et al
. Starch granule biosynthesis in Arabidopsis is abolished by removal of all debranching enzymes but restored by the subsequent removal of an endoamylase. Plant Cell. 2008;20:3448-66 pubmed publisher
..Quadruple mutants lacking all four DBE proteins (Isoamylase1 [ISA1], ISA2, and ISA3, and Limit-Dextrinase) are devoid of starch granules and instead accumulate highly branched glucans, distinct from ..