SUS2 sucrose synthase 2 [Arabidopsis thaliana (thale cress)] - Gene

Summary

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Official Symbol: SUS2
Official Full Name: sucrose synthase 2
Primary source: TAIR:AT5G49190
Locus tag: AT5G49190
See related: Araport:AT5G49190
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Arabidopsis thaliana (ecotype: Columbia)
Lineage: Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis
Also known as: ATSUS2; K21P3.6; K21P3_6; SSA; SUCROSE SYNTHASE; sucrose synthase 2; SUCROSE SYNTHASE FROM ARABIDOPSIS
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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Genomic context

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See SUS2 in Genome Data Viewer

Location:: chromosome: 5

Exon count:: 15

Sequence:: Chromosome: 5; NC_003076.8 (19943181..19947588, complement)

Chromosome 5 - NC_003076.8 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_003076.8

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Role and expression pattern of SUS2 in seed development
Title: Regulation of AtSUS2 and AtSUS3 by glucose and the transcription factor LEC2 in different tissues and at different stages of Arabidopsis seed development.
SUS2 is localized in the embryo, endosperm and seed coat, and during the maturation phase is expressed in embryo plastids.
Title: Study of AtSUS2 localization in seeds reveals a strong association with plastids.

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Pathways from PubChem

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Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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NM_001344824.1

Supported by ESTs:

NM_001344825.1

Supported by ESTs:

NM_124296.3

Supported by ESTs:

Gene Ontology Provided by TAIR

Function	Evidence Code	Pubs
enables glycosyltransferase activity	ISS Inferred from Sequence or Structural Similarity more info
enables sucrose synthase activity	IEA Inferred from Electronic Annotation more info
enables sucrose synthase activity	IMP Inferred from Mutant Phenotype more info	PubMed

Process	Evidence Code	Pubs
acts_upstream_of_or_within response to hypoxia	IEP Inferred from Expression Pattern more info	PubMed
acts_upstream_of_or_within seed maturation	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within starch metabolic process	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in sucrose metabolic process	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within sucrose metabolic process	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in chloroplast	ISM Inferred from Sequence Model more info
located_in cytosol	IDA Inferred from Direct Assay more info	PubMed
located_in plant-type cell wall	HDA more info	PubMed
colocalizes_with plastid	IDA Inferred from Direct Assay more info	PubMed

General protein information

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Preferred Names: sucrose synthase 2

NP_199730.1

sucrose synthase 2 (SUS2); FUNCTIONS IN: UDP-glycosyltransferase activity, sucrose synthase activity, transferase activity, transferring glycosyl groups; INVOLVED IN: sucrose biosynthetic process, seed maturation, response to hypoxia, sucrose metabolic process, starch metabolic process; LOCATED IN: cytosol, plastid, membrane, plant-type cell wall; EXPRESSED IN: 6 plant structures; CONTAINS InterPro DOMAIN/s: Sucrose synthase, plant/cyanobacteria (InterPro:IPR012820), Sucrose synthase (InterPro:IPR000368), Glycosyl transferase, group 1 (InterPro:IPR001296); BEST Arabidopsis thaliana protein match is: sucrose synthase 3 (TAIR:AT4G02280.1); Has 1807 Blast hits to 1807 proteins in 277 species: Archae - 0; Bacteria - 0; Metazoa - 736; Fungi - 347; Plants - 385; Viruses - 0; Other Eukaryotes - 339 (source: NCBI BLink).

NCBI Reference Sequences (RefSeq)

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Genome Annotation

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference assembly

Genomic

NC_003076.8 Reference assembly

Range

19943181..19947588 complement

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GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

NM_124296.3 → NP_199730.1 sucrose synthase 2 [Arabidopsis thaliana]

See identical proteins and their annotated locations for NP_199730.1

Status: REVIEWED

UniProtKB/Swiss-Prot

F4K4S0, Q00917, Q9FJ20

UniProtKB/TrEMBL

A0A654G9B5, W8PUX3

Conserved Domains (3) summary

PLN00142
Location:5 → 806

PLN00142; sucrose synthase

pfam00534
Location:555 → 746

Glycos_transf_1; Glycosyl transferases group 1

pfam00862
Location:15 → 552

Sucrose_synth; Sucrose synthase
NM_001344824.1 → NP_001331823.1 sucrose synthase 2 [Arabidopsis thaliana]

Status: REVIEWED

UniProtKB/TrEMBL

A0A1P8BF02, A0A654G9B5
NM_001344825.1 → NP_001331822.1 sucrose synthase 2 [Arabidopsis thaliana]

Status: REVIEWED

UniProtKB/TrEMBL

A0A1P8BF00, A0A654G9B5