NBD protein MSD protein SBP Protein Domain Function
NBD1 NBD2 MSD1 TM EAA MSD2 TM EAA SBP1 SBP2
A. Importers
CHU1258 CHU1259 CHU1256 7 CHU1257 9 CHU1255   branched-chain amino acid
CHU1966 CHU1967 CHU1968 6 CHU1969   nitrate/sulfonate/taurine
CHU2026 CHU2027 7 CHU2028 9 CHU2025   zinc/manganese
CHU3821 CHU3819 6 CHU3820 7 CHU3818   phosphate
B.Exporters
CHU0218 CHU0218     ??
CHU0313 CHU0313 5     multidrug/protein/lipid
CHU0387 CHU0386 8     multidrug
CHU0463 CHU0463     ?
CHU0485 CHU0486 7     sodium(?)
CHU0506 CHU0506 5     multidrug/protein/lipid
CHU0800 CHU0800     ?
CHU0848 CHU0847 7     polysaccharide/polyol phosphate
CHU0977     ?
CHU1035     iron(III)
CHU1545 CHU1546 6     ?
CHU1763 CHU1763     ?
CHU1770     multidrug
CHU1843     iron(III)
CHU1845 CHU1845     ?
CHU2049 CHU2049 5     multidrug/protein/lipid
CHU2145 CHU2194 7     toluene / related compounds(?)
CHU2216 CHU2216     ?
CHU2233     lipoprotein
CHU2416     sugar
CHU2448 CHU2448 6     multidrug/protein/lipid(?)
CHU2644 CHU2646 4     lipoprotein
CHU2985 CHU2986 6     toulene(?)
CHU3458 CHU3458 6     ?
CHU3530 CHU3530 6     multidrug/protein/lipid
CHU3635 CHU3635     molybdenum
CHU3669     ?

The ABC transporters are split into importers and exporters. For each ABC transporter, the nucleotide-binding domains (NBD1 and NBD2), the membrane-spanning domains (MSD1 and MSD2), and the solute-binding proteins (SBP1 and SBP2) are reported. The functions were assigned based on the similarity searches against Genbank.

TM: Transmembrane segments predicted with the Psort program