High-affinity nitrate transporter (IPR016605)

Short name: Transptr_NO3_Nar2

Family relationships



This group represents a high affinity nitrate transporter component from plants. It includes high-affinity nitrate transporter 3.1 (NRT3.1 or NAR2.1) from Arabidopsis, which acts as a dual component transporter with NTR2 [PMID: 16415212, PMID: 17012411]. The functional unit for high-affinity nitrate influx may be a tetramer consisting of two subunits each of NRT2.1 and NRT3.1 [PMID: 20561257]. NRT3.1 may be involved in targeting NRT2 proteins to the plasma membrane [PMID: 19704673]. Both NRT2.1 and NRT3.1 are coordinately down-regulated by high external nitrate [PMID: 16998085].

GO terms

Biological Process

GO:0015706 nitrate transport
GO:0010167 response to nitrate

Molecular Function

No terms assigned in this category.

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.