Protein
Nickel import ATP-binding protein NikO
Organism
Rhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003)
Function
Part of the energy-coupling factor (ECF) transporter complex NikMNQO involved in nickel import. The complex confers nickel uptake upon expression in E.coli; can also transport cobalt with a very low affinity. Presumably responsible for energy coupling to the transport system.
Similarity
Belongs to the ABC transporter superfamily.
Sequence
MTPAFELQGVQFAYKGVPALNGLDLTLPLGRRTALLGANGSGKSTLLRLLDGLQFPAAGRISAFGTPLTEAMFTDEAAAIAFRRRVGFVFQNPEVQLFCPSVFDELAFGPLQLHWPKERIRARVARAIAQFGLGPLAGRPPHRLSGGEKKRVALASVLILDPEVLLLDEPTAALDPQATDDIAALLETEFGARNPGRTLIFSSHDLDLVARIADHVVVLEAGKVAAAGPAAEVLARTALLRRARLLPGFDGTAP