Transport proteins

Mechanosensitive channels

• Channel of large conductance: MscL
• Channels of small conductance: YfkC, YhdY, YkuT

Ion transporters

Ion uptake

• potassium uptake: KtrA-KtrB, KtrC-KtrD

Ion export

• Na(+)/H(+) antiporter: MrpA-MrpB-MrpC-MrpD-MrpE-MrpF-MrpG
• monovalent cation (Na, K, Li, Rb)/H(+) antiporter: NhaK

Amino acid transporter

• glutamate: GltP, GltP
• proline: YcgO

Sugar transport proteins

PTS proteins

• General PTS proteins: Enzyme I, HPr
• PtsG: glucose permease, EIICBA
• GamP: glucosamine permease, EIICBA
• MurP: N-acetyl muramic acid-specific phosphotransferase system, EIIBC component
• MtlA: mannitol permease
• GmuA, GmuB, GmuC: galactomannan permease
• TreP: trehalose permease
• MalP: maltose permease
• FruA: fructose permease
• ManP: mannose permease
• YpqE: unknown EIIA component
• LevD, LevE, LevF, LevG: fructose permease
• SacP: sucrose permease (high affinity)
• SacY: sucrose permease (low affinity)
• LicA, LicB, LicC: lichenan permease
• BglP: ß-glucoside permease
• YyzE: unknown PTS protein
• MtlF
• YwbA: unknown EIIC component

The PTS in SubtiPathways

• Central C-metabolism
• Sugar catabolism

Transporters for the uptake of compatible solutes in response to hyperosmolarity

• OpuAA-OpuAB-OpuAC: ABC transporter for glycine betaine
• OpuBA-OpuBB-OpuBC-OpuBD: ABC transporter for choline
• OpuCA-OpuCB-OpuCC-OpuCD: ABC transporter for glycine betaine/ carnitine/ choline
• OpuD: transporter for glycine betaine
• OpuE: transporter for proline

Related Lists

• PTS

Relevant Reviews

Jonathan Reizer, Steffi Bachem, Aiala Reizer, Maryvonne Arnaud, Milton H Saier, Jörg Stülke
Novel phosphotransferase system genes revealed by genome analysis - the complete complement of PTS proteins encoded within the genome of Bacillus subtilis.
Microbiology (Reading): 1999, 145 ( Pt 12);3419-3429
[PubMed:10627040] [WorldCat.org] [DOI] (P p)