Protein
Cobalt transport protein CbiM
Organism
Rhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003)
Function
Part of the energy-coupling factor (ECF) transporter complex CbiMNOQ involved in cobalt import. The complex confers cobalt uptake upon expression in E.coli; can also transport nickel with a very low affinity. A Cbi(MN) fusion protein has about 70% import capacity, but the holo-Cbi(MN)QO complex cannot be isolated, suggesting CbiN may destabilize it.
Similarity
Belongs to the CbiM family.
Sequence
MHIMEGYLPVTHAIGWSLAAGPFVVAGAVKIRKIVAERPEARMTLAASGAFAFVLSALKIPSVTGSCSHPTGTGLGAVVFGPSVMAVLGVIVLLFQALLLAHGGLTTLGANAFSMAIVGPWVAWGVYKLAGKAGASMAVAVFLAAFLGDLATYVTTSLQLALAYPDPVSGFLGAALKFGSVFALTQIPLAIAEGFLTVIVVDALAGKVDDKDKLRILAGEAR