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ktrA

Gene
ktrA
Protein
Ktr system potassium uptake protein A
Organism
Bacillus subtilis (strain 168)
Length
222 amino acids
Function
Catalytic subunit of the KtrAB potassium uptake transporter. The 2 major potassium transporter complexes KtrAB and KtrCD confer resistance to both suddenly imposed and prolonged osmotic stress.
Similarity
Belongs to the KtrA potassium transport family.
Mass
24.882 kDa
Sequence
MGRIKNKQFAVIGLGRFGGSICKELHRMGHEVLAVDINEEKVNAYASYATHAVIANATEENELLSLGIRNFEYVIVAIGANIQASTLTTLLLKELDIPNIWVKAQNYYHHKVLEKIGADRIIHPEKDMGVKIAQSLSDENVLNYIDLSDEYSIVELLATRKLDSKSIIDLNVRAKYGCTILAIKHHGDICLSPAPEDIIREQDCLVIMGHKKDIKRFENEGM

Gene
ktrA
Protein
Ktr system potassium uptake protein A
Organism
Vibrio alginolyticus
Length
220 amino acids
Function
Part of the Na(+)-dependent high affinity K(+) uptake system KtrAB. KtrA is the regulatory subunit and plays an important role in the substrate specificity and transport mechanism of the system. Binds ATP but lacks ATPase activity.
Similarity
Belongs to the KtrA potassium transport family.
Mass
23.806 kDa
Sequence
MKTGDKQFAVIGLGRFGLAVCKELQDSGSQVLAVDINEDRVKEAAGFVSQAIVANCTHEETVAELKLDDYDMVMIAIGADVNASILATLIAKEAGVKSVWVKANDRFQARVLQKIGADHIIMPERDMGIRVARKMLDKRVLEFHPLGSGLAMTEFVVGSRLMGKTLSDLALCKVEGVQVLGYKRGPEIIKAPDMSTTLEIGDLIIVVGPQDKLANKLKSL