Gene: AT5G49190 (Arabidopsis thaliana)

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Gene Identifier
Transcript Identifier
Gene Type
Coding gene
Chr5 : 19943369-19947189 : negative


Gene family
(208 genes in 27 species)
specific family
(160 genes in 27 species)
specific family


sucrose synthase 2
Curated Summary
Encodes a sucrose synthase (SUS2). The activity of the enzyme could not be assayed as proved to be insoluble (PMID 17257168). However, analyses of an sus2 mutant revealed a deficiency in sucrose synthase activity 12 and 15 days after flowering. There are some reports that SUS2 transcript levels are increased in leaves specifically by O(2) deficiency whereas other reports indicate that SUS2 is expressed only in seeds. Immulocalization shows that SUS2 is present in the cytosol of developing seeds, but, it also associated with plastids, though not located within them.
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Type Value







Biological Process

GO termEvidence(s)ProviderDescriptionSource
GO:0005985 IEA, IMPUniProtsucrose metabolic process1
GO:0005986 ISSGene Ontologysucrose biosynthetic process1
GO:0001666 IEPGene Ontologyresponse to hypoxia1
GO:0005982 IMPGene Ontologystarch metabolic process1
GO:0010431 IMPGene Ontologyseed maturation1
GO:0010267 IEAPLAZA Tree-based Orthologyproduction of ta-siRNAs involved in RNA interferenceAT5G20830
GO:0010228 IEAPLAZA Tree-based Orthologyvegetative to reproductive phase transition of meristemAT5G20830
GO:0009616 IEAPLAZA Tree-based Orthologyvirus induced gene silencingAT5G20830
GO:0009744 IEAPLAZA Tree-based Orthologyresponse to sucroseAT5G20830
GO:0046686 IEAPLAZA Tree-based Orthologyresponse to cadmium ionAT5G20830
GO:0006970 IEAPLAZA Tree-based Orthologyresponse to osmotic stressAT5G20830
GO:0009880 IEAPLAZA Tree-based Orthologyembryonic pattern specificationAT5G20830
GO:0080165 IEAPLAZA Tree-based Orthologycallose deposition in phloem sieve plateAT1G73370
GO:0031053 IEAPLAZA Tree-based Orthologyprimary miRNA processingAT5G20830
GO:0010098 IEAPLAZA Tree-based Orthologysuspensor developmentAT4G02280
GO:0010037 IEAPLAZA Tree-based Orthologyresponse to carbon dioxideLOC_Os03g28330
GO:0035279 IEAPLAZA Tree-based OrthologymRNA cleavage involved in gene silencing by miRNAAT5G20830
GO:2000034 IEAPLAZA Tree-based Orthologyregulation of seed maturationAT5G20830
GO:0010599 IEAPLAZA Tree-based Orthologyproduction of lsiRNA involved in RNA interferenceAT5G20830
GO:0010555 IEAPLAZA Tree-based Orthologyresponse to mannitolAT5G20830
GO:0051262 IEAPLAZA Tree-based Orthologyprotein tetramerizationLOC_Os06g09450
GO:0009908 IEAPLAZA Tree-based Orthologyflower developmentAT5G20830
GO:0009749 IEAPLAZA Tree-based Orthologyresponse to glucoseAT5G20830
GO:0009409 IEAPLAZA Tree-based Orthologyresponse to coldAT5G20830
GO:0009414 IEAPLAZA Tree-based Orthologyresponse to water deprivationAT5G20830
GO:0000911 IEAPLAZA Tree-based Orthologycytokinesis by cell plate formationAT5G20830
GO:0009413 IEAPLAZA Tree-based Orthologyresponse to floodingAT5G20830
GO:0048317 IEAPLAZA Tree-based Orthologyseed morphogenesisAT5G20830
GO:0072708 IEAPLAZA Tree-based Orthologyresponse to sorbitolAT5G20830

Molecular Function

GO termEvidence(s)ProviderDescriptionSource
GO:0016157 IEA, IMP, ISSUniProtsucrose synthase activity1 2
GO:0008194 ISSGene OntologyUDP-glycosyltransferase activity1
GO:0016757 ISSGene Ontologytransferase activity, transferring glycosyl groups1
GO:0003725 IEAPLAZA Tree-based Orthologydouble-stranded RNA bindingAT5G20830

Cellular Component

GO termEvidence(s)ProviderDescriptionSource
GO:0042170 IEAGene Ontologyplastid membrane1
GO:0009505 IDAGene Ontologyplant-type cell wall1
GO:0016020 IDAGene Ontologymembrane1
GO:0005829 IDAGene Ontologycytosol1
GO:0010445 IEAPLAZA Tree-based Orthologynuclear dicing bodyAT5G20830
GO:0005618 IEAPLAZA Tree-based Orthologycell wallAT1G73370
GO:0005634 IEAPLAZA Tree-based OrthologynucleusAT5G20830
GO:0005886 IEAPLAZA Tree-based Orthologyplasma membraneAT3G43190
GO:0009506 IEAPLAZA Tree-based OrthologyplasmodesmaAT5G20830
GO:0005773 IEAPLAZA Tree-based OrthologyvacuoleAT3G43190

Color Legend

Experimental Evidence
Electronic Evidence
Computational Reviewed Evidence
GO Sources:   Primary     Orthology     Homology  
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InterPro Description
IPR000368Sucrose synthase
IPR001296Glycosyl transferase, family 1
IPR012820Sucrose synthase, plant/cyanobacteria

Mapman id Description metabolism.sucrose metabolism.degradation.sucrose synthase
No SignalP domains detected for this gene.