Gene: AT4G09020 (Arabidopsis thaliana)

Overview top

Gene Identifier
AT4G09020
Transcript Identifier
AT4G09020.1
Gene Type
Coding gene
Location
4 : 5784099-5788839 : positive

Family

Gene family
HOM03M001360
(55 genes in 16 species)
specific family
Subfamily
ORTHO03M018734
(2 genes in 2 species)
specific family

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Descriptions

Description
isoamylase 3
Curated Summary
Encodes an isoamylase-like protein. Mutant studies show that the gene is strongly involved in starch breakdown. A GUS-protein fusion product was shown to localize to the surface of chloroplastic structures reminiscent of starch granules. In the mutants, the chloroplastic α-amylase AMY3 is upregulated.
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Identifiers

Identifier Name
aliasATISA3
aliasisoamylase 3
aliasISA3
uniprotQ9M0S5

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Biological Process

GO termEvidence(s)ProviderDescriptionSource
GO:0005975ISS, IEAGene Ontologycarbohydrate metabolic process1
GO:0005983IMPUniProtstarch catabolic process1 2 3 4 5 6 7 8
GO:0000272RCAGene Ontologypolysaccharide catabolic process1
GO:0005982RCAGene Ontologystarch metabolic process1
GO:0009664RCAGene Ontologyplant-type cell wall organization1
GO:0019252RCAGene Ontologystarch biosynthetic process1

Molecular Function

GO termEvidence(s)ProviderDescriptionSource
GO:0004556ISSGene Ontologyalpha-amylase activity1
GO:0019156IDAUniProtisoamylase activity1 2 3 4 5 6 7 8
GO:0043169IEAUniProtcation binding1 2 3 4 5 6 7
GO:0003824IEAInterProcatalytic activity
GO:0004553IEAInterProhydrolase activity, hydrolyzing O-glycosyl compounds

Cellular Component

GO termEvidence(s)ProviderDescriptionSource
GO:0009507IDA, ISMGene Ontologychloroplast1 2
GO:0009570IDAUniProtchloroplast stroma1 2 3 4 5 6 7 8
GO:0009569IDAUniProtchloroplast starch grain1 2 3 4 5 6 7 8

Color Legend

Experimental Evidence
Electronic Evidence
Computational Reviewed Evidence
GO Sources:   Primary     Orthology     Homology  
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InterPro Description
IPR017853Glycoside hydrolase, superfamily
IPR004193Glycoside hydrolase, family 13, N-terminal
IPR013781Glycoside hydrolase, catalytic domain
IPR006589Glycosyl hydrolase, family 13, subfamily, catalytic domain
IPR014756Immunoglobulin E-set
IPR013783Immunoglobulin-like fold
IPR013780Glycosyl hydrolase, family 13, all-beta
IPR006047Glycosyl hydrolase, family 13, catalytic domain
IPR015902Glycoside hydrolase, family 13

Mapman id Description
2.2.2.8major CHO metabolism.degradation.starch.ISA3
No SignalP domains detected for this gene.