Protein
Nitrogen fixation protein FixI
Organism
Bradyrhizobium diazoefficiens (strain JCM 10833 / IAM 13628 / NBRC 14792 / USDA 110)
Function
FixI is a pump of a specific cation involved in symbiotic nitrogen fixation. The four proteins FixG, FixH, FixI, and FixS may participate in a membrane-bound complex coupling the FixI cation pump with a redox process catalyzed by FixG.
Similarity
Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IB subfamily.
Sequence
MHVTRDFSHYVRTAGEGIKHIDLAVEGVHCAGCMAKIERGLSAIPDVTLARVNLTDRRVALEWKAGTLDPGRFIDRLEELGYKAYPFETESAEVAEVAESRFLLRCLGVAAFATMNVMMLSIPVWSGNVSDMLPEQRDFFHWLSALIALPAAAYAGQPFFRSAWRALSAKTTNMDVPISIGVILALGMSVVETIHHAEHAYFDAAIMLLTFLLVGRFLDQNMRRRTRAVAGNLAALKAETAAKFVGPDEISQVPVAAISPGDIVLLRPGERCAVDGTVIEGRSEIDQSLITGETLYVTAEQGTPVYAGSMNISGTLRVRVSAASEATLLAEIARLLDNALQARSRYMRLADRASRLYAPVVHATALITILGWVIAGASWHDAIVTGVAVLIITCPCALGLAIPTVQTVASGAMFKSGVLLNSGDAIERLAEADHVIFDKTGTLTLPDLEVMNAADIPADIFELAGRLALSSHHPVAAAVAQAAGARSPIVGAVEEAGQGVRADVDGAEIRLGRPSFCGAEALVGDGTRLDPEASIVAFSKGAEKFILWVRQGLRPDAQAVIAALKARNIGIEILSGDREPAVKAAAHALAIPEWRAGVTPADKIARIEELKRRGARVLMVGDGMNDAPSLAAAHVSMSPISAAHLSQATADLVFLGRPLAPVAAAIDSARKALHLMRQNLWLAIGYNVLAVPVAISGVVTPLIAAAAMSGSSILVMLNSLRARSDSREIV