- Information
- Symbol: NRT1,OsNRT1,OsNRT1.1
- MSU: LOC_Os03g13274
- RAPdb: Os03g0235900
- PSP score
- LOC_Os03g13274.1: 0.0201
- LOC_Os03g13274.3: 0.1397
- LOC_Os03g13274.4: 0.0201
- LOC_Os03g13274.2: 0.0201
- PLAAC score
- LOC_Os03g13274.1: 0
- LOC_Os03g13274.3: 0
- LOC_Os03g13274.4: 0
- LOC_Os03g13274.2: 0
- pLDDT score
- 82.97
- Protein Structure from AlphaFold and UniProt
- Publication
- Rice OsNAR2.1 interacts with OsNRT2.1, OsNRT2.2 and OsNRT2.3a nitrate transporters to provide uptake over high and low concentration ranges, 2011, Plant Cell Environ.
- Cloning and functional characterization of a constitutively expressed nitrate transporter gene, OsNRT1, from rice, 2000, Plant Physiol.
- Comparison of ion balance and nitrogen metabolism in old and young leaves of alkali-stressed rice plants, 2012, PLoS One.
- Genbank accession number
- Key message
- Northern-blot and in situ hybridization analysis indicated that OsNRT1 is constitutively expressed in the most external layer of the root, epidermis and root hair
- As a first step toward that goal, we have cloned a nitrate transporter gene from rice called OsNRT1
- OsNRT1 is a new member of a growing transporter family called PTR, which consists not only of nitrate transporters from higher plants that are homologs of the Arabidopsis CHL1 (AtNRT1) protein, but also peptide transporters from a wide variety of genera including animals, plants, fungi, and bacteria
- However, despite the fact that OsNRT1 shares a higher degree of sequence identity with the two peptide transporters from plants (approximately 50%) than with the nitrate transporters (approximately 40%) of the PTR family, no peptide transport activity was observed when OsNRT1 was expressed in either Xenopus oocytes or yeast
- Furthermore, contrasting the dual-affinity nitrate transport activity of CHL1, OsNRT1 displayed only low-affinity nitrate transport activity in Xenopus oocytes, with a K(m) value of approximately 9 mM
- These data strongly indicate that OsNRT1 encodes a constitutive component of a low-affinity nitrate uptake system for rice
- Cloning and functional characterization of a constitutively expressed nitrate transporter gene, OsNRT1, from rice
- Connection
Prev Next