Table I.

Percentage identity between monosaccharide transporters from a variety of species

Organism	Gene	pmt1	stp4	mst1	stp1	hup1	gtr1
Petunia	pmt1		65	63	60	54	47
Arabidopsis	stp4	62		63	63	53	48
Tobacco	mst1	60	63		70	52	46
Arabidopsis	stp1	59	62	79		54	47
C. kessleri	hup1	44	45	45	46		49
Rat	gtr1	30	28	30	30	29

Nucleotide sequence homologies (top right, coding region) and deduced amino acid sequence homologies (bottom left) are shown.