Protein
Polyamine transporter RMV1
Organism
Arabidopsis thaliana
Function
Cell membrane polyamine/proton symporter involved in the polyamine uptake in cells. Possesses high affinity for spermine and spermidine and lower affinity for putrescine. Transports paraquat, a polyamine analog, and thus confers sensitivity to this chemical which is used as a herbicide.
Similarity
Belongs to the amino acid-polyamine-organocation (APC) superfamily. Polyamine:cation symporter (PHS) (TC 2.A.3.12) family.
Sequence
MTELSSPNLDSASQKPRISTENPPPPPPHISIGVTTGDPATSPARTVNQIKKITVLPLVFLIFYEVSGGPFGIEDSVKAAGPLLAIVGFIVFPFIWSIPEALITAEMGTMFPENGGYVVWVTLAMGPYWGFQQGWVKWLSGVIDNALYPILFLDYLKSGIPILGSGIPRVAAILVLTVALTYLNYRGLSIVGVAAVLLGVFSILPFVVMSFMSIPKLKPSRWLVVSKKMKGVNWSLYLNTLFWNLNYWDSVSTLTGEVENPSKTLPRALFYALLLVVFSYIFPVLTGTGAIALDQKLWTDGYFADIGKVIGGVWLGWWIQAAAATSNMGMFLAEMSSDSFQLLGMAERGMLPEVFAKRSRYRTPWVGILFSASGVIILSWLSFQEIVAAENLLYCFGMVLEFITFVRLRMKYPAASRPFKIPVGVLGSVLMCIPPTVLIGVIMAFTNLKVALVSLAAIVIGLVLQPCLKQVEKKGWLKFSTSSHLPNLME