NBD protein		MSD Protein						SBP Protein		Domain Type	Function
NBD1	NBD2	MSD1	TM	EAA	MSD2	TM	EAA	SBP1	SBP2	Domain Type	Function
A. Importers
AA00061		AA00059	6		AA00058	6		AA00057			heme
AA00207		AA00208	6					AA00209			D-ribose
AA00415		AA00416	5					AA00417			D-methionine
AA00700		AA00699	15					AA00696	AA00698		iron(III)
AA00751		AA00753	9					AA00750			galactoside
AA00799		AA00796	9		AA00798	8		AA00795			iron(III)
AA00858		AA00854	3		AA00855	4		AA00856			arginine
AA00933	AA00934	AA00935	3		AA00936	4		AA00932			ribose
AA01051		AA01050	11					AA01048			iron(III)
AA01456		AA01457	9					AA01455			D-xylose
AA01524		AA01525	4					AA01526			amino acid
AA01645		AA01644	15					AA01642			iron(III)
AA01656		AA01649	6		AA01650	6		AA01657	AA01658		maltose/maltodextrin
								AA01654			??
AA01684	AA01685	AA01682	5					AA01681			molybdenum
AA01779		AA01780	4					AA01781			molybdenum
AA01824		AA01825	7		AA01826	8		AA01827			iron(III)
AA01867		AA01866	10					AA01865			thiamin
AA01947		AA01948	6		AA01950	5		AA01952			spermidine/putrescine (?)
AA02152		AA02153	9					AA02154			iron (III)
AA02324		AA02325	5					AA02327			toluene(?)
AA02353		AA02352	5					AA02352			glycine betaine/carnitine/choline
AA02550		AA02551	7		AA02552	7		AA02549			iron (chelated)
AA02718		AA02719	7		AA02720	5		AA02721			spermidine/putrescine
AA02786		AA02785	9					AA02787	AA02788		ribose
AA02898	AA02899	AA02893	1		AA02895	4		AA02891	AA02892		oligopeptide
B.Exporters
AA00591		AA00591	6								??
AA01393											??
AA01422		AA01423	4								??
AA01509	AA01510	AA01509	6		AA01510	6					??
AA01555	AA01556										??
AA01616		AA01615	4		AA01618	4					??
AA01820		AA01818	6								zinc
AA01961		AA01961	5								lipid A
AA02080		AA02080	4								??
AA02140		AA02141	6								??
A02145	AA02146	AA02144	8								iron (III)
AA02225	AA02226	AA02220	10		AA02224	8					??
AA02320											??
AA02331											??
AA02440		AA02438	3		AA02439	4					??
AA02484											??
AA02573											??
AA02642		AA02643	4								??
		AA02897	6								??

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.