Gene Symbol: AMY3
Description: alpha-amylase-like 3
Alias: ALPHA-AMYLASE-LIKE 3, ATAMY3, T17F3.14, T17F3_14, alpha-amylase-like 3, alpha-amylase-like 3
Species: thale cress
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
..The additional loss of the chloroplastic alpha-amylase AMY3 partially reverts the phenotype of the quadruple DBE mutant, restoring starch granule biosynthesis...
Yu T, Zeeman S, Thorneycroft D, Fulton D, Dunstan H, Lue W, et al
. alpha-Amylase is not required for breakdown of transitory starch in Arabidopsis leaves. J Biol Chem. 2005;280:9773-9 pubmed
The Arabidopsis thaliana genome encodes three alpha-amylase-like proteins (AtAMY1, AtAMY2, and AtAMY3). Only AtAMY3 has a predicted N-terminal transit peptide for plastidial localization. AtAMY3 is an unusually large alpha-amylase (93...
Smith A, Zeeman S, Smith S. Starch degradation. Annu Rev Plant Biol. 2005;56:73-98 pubmed
..We discuss the differences in relation to the biology of each system. ..
Streb S, Eicke S, Zeeman S. The simultaneous abolition of three starch hydrolases blocks transient starch breakdown in Arabidopsis. J Biol Chem. 2012;287:41745-56 pubmed publisher
..Thus, other enzymes/mechanisms must contribute to starch breakdown. We show that the chloroplastic ?-amylase 3 (AMY3) also participates in starch degradation and provide evidence that all three enzymes can act directly at the starch ..
Seung D, Thalmann M, Sparla F, Abou Hachem M, Lee S, Issakidis Bourguet E, et al
. Arabidopsis thaliana AMY3 is a unique redox-regulated chloroplastic ?-amylase. J Biol Chem. 2013;288:33620-33 pubmed publisher
..Arabidopsis has one member of each subfamily. Among them, only AtAMY3 is localized in the chloroplast...
Thalmann M, Pazmino D, Seung D, Horrer D, Nigro A, Meier T, et al
. Regulation of Leaf Starch Degradation by Abscisic Acid Is Important for Osmotic Stress Tolerance in Plants. Plant Cell. 2016;28:1860-78 pubmed publisher
..In guard cells, starch is rapidly mobilized by the synergistic action of ?-AMYLASE1 (BAM1) and ?-AMYLASE3 (AMY3) to promote stomatal opening...