Genomics
Overlapping Features
Genome features that overlap coordinates of this Gene
CDSs: 5, Exons: 5, Five Prime UTR: 1, mRNA: 1, Three Prime UTR: 1, Transposable Elements: 2, Transposon Fragments: 2
Proteins
Curated comments from UniProt
Type | Comment | Proteins |
---|---|---|
GPT1_ARATH | developmental stage | Expressed during the transient accumulation of starch in the developing seeds. Decline rapidly 8 days after flowering. Not detected in mature seeds. |
GPT1_ARATH | function | Glucose 6-phosphate (Glc6P) transporter (PubMed:15722468). Transports also inorganic phosphate, 3-phosphoglycerate, triose phosphates and, to a leser extent, phosphoenolpyruvate (PubMed:15722468). Responsible for the transport of Glc6P into plastids of heterotrophic tissues where it can be used as a carbon source for starch biosynthesis, as substrate for fatty acid biosynthesis or as substrate for NADPH generation via the oxidative pentose phosphate pathway (OPPP) (PubMed:15722468). Required for pollen maturation and embryo sac development (PubMed:15722468, PubMed:20659277). Preferentially exchanges Glc6P for ribulose-5-phosphate (Ru5P) in reconstituted yeast proteoliposomes (PubMed:32111666). May supply the substrate (Glc6P) for OPPP reactions inside peroxisomes and exchange it with the product Ru5P which leaves the organelle (PubMed:32111666). |
GPT1_ARATH | similarity | Belongs to the TPT transporter family. GPT (TC 2.A.7.9) subfamily. |
GPT1_ARATH | subcellular location | Targeted to peroxisomes via the endoplasmic reticulum. |
GPT1_ARATH | tissue specificity | Expressed in seeds, flowers, rosette leaves, and roots, with highest levels found in stamens. Found in the root cap, in guard cells and in mesophyll cells. |
Function
Gene Ontology
cellular component | |
---|---|
plastid | ECO |
peroxisome | ECO |
endoplasmic reticulum membrane | ECO |
chloroplast membrane | ECO |
chloroplast | ECO |
peroxisomal membrane | ECO |
Golgi apparatus | ECO |
molecular function | |
phosphoglycerate transmembrane transporter activity | ECO |
glucose-6-phosphate transmembrane transporter activity | ECO |
inorganic phosphate transmembrane transporter activity | ECO |
triose-phosphate transmembrane transporter activity | ECO |
antiporter activity | ECO |
protein domain specific binding | ECO |
biological process | |
triose phosphate transmembrane transport | ECO |
vacuole organization | ECO |
lipid droplet organization | ECO |
carbohydrate transport | ECO |
glucose-6-phosphate transport | ECO |
phosphoenolpyruvate transport | ECO |
phosphoglycerate transmembrane transport | ECO |
pollen maturation | ECO |
embryo sac development | ECO |
response to nematode | ECO |
embryo development ending in seed dormancy | ECO |