LMPD Database

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LMP009840

UniProt Annotations

Entry Information
Gene Namealpha-amylase 1
Protein EntryAMY1_ARATH
UniProt IDQ8VZ56
SpeciesArabidopsis
Comments
Comment typeDescription
Catalytic ActivityEndohydrolysis of (1->4)-alpha-D-glucosidic linkages in polysaccharides containing three or more (1->4)-alpha- linked D-glucose units.
CofactorName=Ca(2+); Xref=ChEBI:CHEBI:29108; Evidence={ECO:0000250}; Note=Binds 3 Ca(2+) ions per subunit. {ECO:0000250};
Developmental StageUp-regulated during leaf senescence.
Disruption PhenotypeEarly flowering. {ECO:0000269|PubMed:15637061}.
FunctionPossesses alpha-amylase activity in vitro, but seems not required for breakdown of transitory starch in leaves. {ECO:0000269|PubMed:17324226}.
InductionBy gibberellin, abscisic acid (ABA), heat shock and infection with the bacterial pathogen P.syringae. Not regulated by transition from dark to light. {ECO:0000269|PubMed:15347792, ECO:0000269|PubMed:15927942, ECO:0000269|PubMed:17324226}.
Sequence CautionSequence=CAB36742.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305}; Sequence=CAB79409.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305};
SimilarityBelongs to the glycosyl hydrolase 13 family. {ECO:0000305}.
Subcellular LocationSecreted, extracellular space, apoplast {ECO:0000305|PubMed:17324226}.
SubunitMonomer. {ECO:0000250}.
Tissue SpecificityExpressed in leaves, stems, flowers and developing siliques. {ECO:0000269|PubMed:15927942}.