NCBI Accession #
NP_174144.1
NCBI GenBank Nucleotide #
NM_102588.3
NCBI Official Full Name
purine permease 1
NCBI Official Symbol
PUP1
NCBI Official Synonym Symbols
ATPUP1; F3H9.22; F3H9_22; purine permease 1; PURINE PERMEASE 1
NCBI Protein Information
purine permease 1
NCBI Summary
Encodes a transporter that transports purines,cytokinins and other adenine derivatives. Expressed in the leaf hydathodes where it may be involved in re-uptake of cytokinins during guttation.
UniProt Synonym Gene Names
AtPUP1
UniProt Protein Name
Purine permease 1
UniProt Primary Accession #
Q9FZ96
UniProt Secondary Accession #
Q9M7R1
UniProt Related Accession #
Q9FZ96
UniProt Comments
Proton-coupled purine transporter mediating adenine and trans-zeatin uptake (PubMed:12662305). High affinity transporter for pyridoxine involved in the uptake of vitamin B6 (PubMed:23551747). Also able to transport caffeine and adenosine (PubMed:12662305). May be involved in the uptake of cytokinin, caffeine and nicotine from the xylem sap into shoot tissues (PubMed:12662305).