NCBI Accession #
NP_567404.1
NCBI GenBank Nucleotide #
NM_117416.3
NCBI Official Full Name
high affinity K+ transporter 5
NCBI Official Symbol
HAK5
NCBI Official Synonym Symbols
ARABIDOPSIS THALIANA HIGH AFFINITY K+ TRANSPORTER 5; ATHAK5; high affinity K+ transporter 5; T9E8.160; T9E8_160
NCBI Protein Information
high affinity K+ transporter 5
NCBI Summary
Encodes a protein of the KUP/HAK/KT potassium channel class that is upregulated in the roots by K levels.
UniProt Synonym Gene Names
HAK5; AtHAK1; AtHAK5; AtPOT5
UniProt Protein Name
Potassium transporter 5
UniProt Primary Accession #
Q9M7K4
UniProt Secondary Accession #
Q9T0L3
UniProt Related Accession #
Q9M7K4
UniProt Comments
High-affinity potassium transporter. Can also transport rubidium and cesium (Ref. 1). Is essential with AKT1 for high-affinity potassium uptake in roots during seedling establishment and postgermination growth under low potassium conditions (PubMed:20413648). Mediates potassium uptake by plant roots in response to low potassium conditions, by a calcium-, CBL-, and CIPK-dependent pathway. Positively regulated by the calcium sensors calcineurin B-like genes CBL1, CBL8, CBL9 and CBL10, and by phosphorylation by CIPK23 (PubMed:26474642).