Protein
Fructose import ATP-binding protein FruK
Organism
Bifidobacterium longum (strain NCC 2705)
Function
Part of the high-affinity ABC transporter complex FruEKFG involved in fructose uptake. Can also transport ribose and xylose, with lower affinity. Probably responsible for energy coupling to the transport system.
Similarity
Belongs to the ABC transporter superfamily.
Sequence
MTDKNPIVVMKGITIEFPGVKALDGVDLTLYPGEVHALMGENGAGKSTMIKALTGVYKINAGSIMVDGKPQQFNGTLDAQNAGIATVYQEVNLCTNLSVGENVMLGHEKRGPFGIDWKKTHEAAKKYLAQMGLESIDPHTPLSSISIAMQQLVAIARAMVINAKVLILDEPTSSLDANEVRDLFAIMRKVRDSGVAILFVSHFLDQIYEITDRLTILRNGQFIKEVMTKDTPRDELIGMMIGKSAAELSQIGAKKARREITPGEKPIVDVKGLGKKGTINPVDVDIYKGEVVGFAGLLGSGRTELGRLLYGADKPDSGTYTLNGKKVNISDPYTALKNKIAYSTENRRDEGIIGDLTVRQNILIALQATRGMFKPIPKKEADAIVDKYMKELNVRPADPDRPVKNLSGGNQQKVLIGRWLATHPELLILDEPTRGIDIGAKAEIQQVVLDLASQGMGVVFISSELEEVVRLSDDIEVLKDRHKIAEIENDDTVSQATIVETIANTNVNTGKEA