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(-) Description

Title :  KEFC C-TERMINAL DOMAIN IN COMPLEX WITH KEFF AND ESG
 
Authors :  T. P. Roosild
Date :  05 Jan 10  (Deposition) - 17 Nov 10  (Release) - 01 Dec 10  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.10
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Potassium Channel Regulation, Potassium Efflux, Glutathione, Ktn(Rck) Domains, Transport Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  T. P. Roosild, S. Castronovo, J. Healy, S. Miller, C. Pliotas, T. Rasmussen, W. Bartlett, S. J. Conway, I. R. Booth
Mechanism Of Ligand-Gated Potassium Efflux In Bacterial Pathogens.
Proc. Natl. Acad. Sci. Usa V. 107 19784 2010
PubMed-ID: 21041667  |  Reference-DOI: 10.1073/PNAS.1012716107

(-) Compounds

Molecule 1 - GLUTATHIONE-REGULATED POTASSIUM-EFFLUX SYSTEM PROTEIN KEFC, LINKER, ANCILLARY PROTEIN KEFF
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PHIS8
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Gene: B0047, JW0046, KEFC, TRKC, B0046, JW0045, KEFF, YABF
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 83333
    Strain: K-12
    Synonym: K(+)/H(+) ANTIPORTER

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (5, 8)

Asymmetric/Biological Unit (5, 8)
No.NameCountTypeFull Name
1ESG1Ligand/IonL-GAMMA-GLUTAMYL-S-[(3S)-1-ETHYL-2,5-DIOXOPYRROLIDIN-3-YL]-L-CYSTEINYLGLYCINE
2FMN2Ligand/IonFLAVIN MONONUCLEOTIDE
3L9X1Ligand/IonL-GAMMA-GLUTAMYL-S-[(3R)-1-ETHYL-2,5-DIOXOPYRROLIDIN-3-YL]-L-CYSTEINYLGLYCINE
4SO42Ligand/IonSULFATE ION
5ZN2Ligand/IonZINC ION

(-) Sites  (8, 8)

Asymmetric Unit (8, 8)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:1008 , SER A:1014 , HIS A:1015 , ALA A:1016 , ASN A:1017 , PRO A:1064 , MET A:1065 , GLN A:1066 , TRP A:1067 , TYR A:1068 , THR A:1105 , THR A:1106 , GLY A:1107 , GLY A:1108 , PHE A:1113 , THR A:1148BINDING SITE FOR RESIDUE FMN A 2400
2AC2SOFTWARETYR A:1010 , PRO A:1011 , HIS A:1012BINDING SITE FOR RESIDUE ZN A 2402
3AC3SOFTWAREHOH A:191 , ARG A:409 , GLN A:412 , ILE A:413 , ARG A:416 , THR A:437 , HOH B:218 , HOH B:219 , HOH B:261 , ARG B:498 , ASP B:499 , VAL B:500 , ARG B:516BINDING SITE FOR RESIDUE ESG B 1177
4AC4SOFTWAREHOH A:59 , HOH A:278 , GLY A:408 , ARG A:409 , PHE A:410 , ASP A:472 , ARG A:496BINDING SITE FOR RESIDUE SO4 A 1190
5AC5SOFTWAREHOH A:50 , HOH B:274 , TYR B:1010 , PRO B:1011 , HIS B:1012BINDING SITE FOR RESIDUE ZN B 2402
6AC6SOFTWAREHOH B:197 , HOH B:273 , HIS B:1008 , SER B:1014 , HIS B:1015 , ALA B:1016 , ASN B:1017 , PRO B:1064 , MET B:1065 , GLN B:1066 , TRP B:1067 , TYR B:1068 , THR B:1105 , THR B:1106 , GLY B:1107 , GLY B:1108 , HIS B:1112 , PHE B:1113 , THR B:1148 , PHE B:1149BINDING SITE FOR RESIDUE FMN B 2400
7AC7SOFTWAREHOH A:191 , ARG A:409 , GLN A:412 , ILE A:413 , ARG A:416 , HOH B:218 , HOH B:219 , HOH B:261 , ARG B:498 , ASP B:499 , VAL B:500 , ARG B:516 , MET B:558BINDING SITE FOR RESIDUE L9X B 1178
8AC8SOFTWAREGLY B:408 , ARG B:409 , PHE B:410 , ASP B:472 , ARG B:496BINDING SITE FOR RESIDUE SO4 B 1180

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3L9X)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3L9X)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3L9X)

(-) PROSITE Motifs  (1, 2)

Asymmetric/Biological Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1RCK_NPS51201 RCK N-terminal domain profile.KEFC_ECOLI401-523
 		  2A:401-523
B:401-523

(-) Exons   (0, 0)

(no "Exon" information available for 3L9X)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:336
 aligned with KEFC_ECOLI | P03819 from UniProtKB/Swiss-Prot  Length:620

    Alignment length:336
                                                                                                                                                                                                                           582                                                                                                                                              
                                                                                                                                                                                                                         580 |                                                                        608                                                                   
                                                                                                                                                                                           561        562              579 | |           583     591                       592     600   601  606    607|    609  614  615  620                                             
                                   409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559 |       -  |    569       579 | |     -       585     |   -         -         - |     600     | 605|      ||-     | 613|    | 619|        -         -         -         -      
          KEFC_ECOLI    400 PRVIIAGFGRFGQITGRLLLSSGVKMVVLDHDPDHIETLRKFGMKVFYGDATRMDLLESAGAAKAEVLINAIDDPQTNLQLTEMVKEHFPHLQIIARARDVDHYIRLRQAGVEKPERETFEGALKTGRLALESLGLGPYEARERADVFRRFNIQMVEEMAMV----------ENDTKARAAVYKRTSAML-SEI-------------ITEDREHLS-------------------------LIQRHGWQG-----TEEGKH------TG------NMADEP----ETKPSS---------------------------------------------    -
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..eeee..hhhhhhhhhhhhhh...eeeee.hhhhhhhhhhhh.eeee....hhhhhhhh......eeee...hhhhhhhhhhhhhhhh...eeeeee.hhhhhhhhhhh.....ee.hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhh.eeeee........hhhhhhhhhhhh...eeeeehhhhh.....hhhhhhhhhhhh.eeeeeee......hhhhhhhhhhhh................eeeeeee...hhhhhh.....hhhhhhhhhhhhhhhh..ee...eee.hhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -RCK_N  PDB: A:401-523 UniProt: 401-523                                                                                     -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                3l9x A  400 MRVIIAGFGRFGQITGRLLLSSGVKMVVLDHDPDHIETLRKFGMKVFYGDATRMDLLESAGAAKAEVLINAIDDPQTNLQLTEMVKEHFPHLQIIARARDVDHYIRLRQAGVEKPERETFEGALKTGRLALESLGLGPYEARERADVFRRFNIQMVEEMAMVMILIIYAHPYPHHSHANKRMLEQARTLEGVEIRSLYQLYPDFNIDIAAEQEALSRADLIVWQHPMQWYSIPPLLKLWIDKVFSHGWAYGHGGTALHGKHLLWAVTTGGGESHFEIGAHPGFDVLSQPLQATAIYCGLNWLPPFAMHCTFICDDETLEGQARHYKQRLLEWQEAH 1174
                                   409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559 ||   1008      1018      1028      1038      1048      1058      1068      1078      1088      1098      1108      1118      1128      1138      1148      1158      1168      
                                                                                                                                                                                           561|                                                                                                                                                                             
                                                                                                                                                                                           1001                                                                                                                                                                             


Chain A from PDB  Type:PROTEIN  Length:336
 aligned with KEFF_ECOLI | P0A754 from UniProtKB/Swiss-Prot  Length:176

    Alignment length:336
                                                                                                                                                                                              1                                                                                                                                                                             
                                     -         -         -         -         -         -         -         -         -         -         -         -         -         -         -         -  |      8        18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168      
          KEFF_ECOLI      - ------------------------------------------------------------------------------------------------------------------------------------------------------------------MILIIYAHPYPHHSHANKRMLEQARTLEGVEIRSLYQLYPDFNIDIAAEQEALSRADLIVWQHPMQWYSIPPLLKLWIDKVFSHGWAYGHGGTALHGKHLLWAVTTGGGESHFEIGAHPGFDVLSQPLQATAIYCGLNWLPPFAMHCTFICDDETLEGQARHYKQRLLEWQEAH  174
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..eeee..hhhhhhhhhhhhhh...eeeee.hhhhhhhhhhhh.eeee....hhhhhhhh......eeee...hhhhhhhhhhhhhhhh...eeeeee.hhhhhhhhhhh.....ee.hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhh.eeeee........hhhhhhhhhhhh...eeeeehhhhh.....hhhhhhhhhhhh.eeeeeee......hhhhhhhhhhhh................eeeeeee...hhhhhh.....hhhhhhhhhhhhhhhh..ee...eee.hhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                3l9x A  400 MRVIIAGFGRFGQITGRLLLSSGVKMVVLDHDPDHIETLRKFGMKVFYGDATRMDLLESAGAAKAEVLINAIDDPQTNLQLTEMVKEHFPHLQIIARARDVDHYIRLRQAGVEKPERETFEGALKTGRLALESLGLGPYEARERADVFRRFNIQMVEEMAMVMILIIYAHPYPHHSHANKRMLEQARTLEGVEIRSLYQLYPDFNIDIAAEQEALSRADLIVWQHPMQWYSIPPLLKLWIDKVFSHGWAYGHGGTALHGKHLLWAVTTGGGESHFEIGAHPGFDVLSQPLQATAIYCGLNWLPPFAMHCTFICDDETLEGQARHYKQRLLEWQEAH 1174
                                   409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559 ||   1008      1018      1028      1038      1048      1058      1068      1078      1088      1098      1108      1118      1128      1138      1148      1158      1168      
                                                                                                                                                                                           561|                                                                                                                                                                             
                                                                                                                                                                                           1001                                                                                                                                                                             


Chain B from PDB  Type:PROTEIN  Length:336
 aligned with KEFC_ECOLI | P03819 from UniProtKB/Swiss-Prot  Length:620

    Alignment length:336
                                                                                                                                                                                                                           582                                                                                                                                              
                                                                                                                                                                                                                         580 |                                                                        608                                                                   
                                                                                                                                                                                           561        562              579 | |           583     591                       592     600   601  606    607|    609  614  615  620                                             
                                   409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559 |       -  |    569       579 | |     -       585     |   -         -         - |     600     | 605|      ||-     | 613|    | 619|        -         -         -         -      
          KEFC_ECOLI    400 PRVIIAGFGRFGQITGRLLLSSGVKMVVLDHDPDHIETLRKFGMKVFYGDATRMDLLESAGAAKAEVLINAIDDPQTNLQLTEMVKEHFPHLQIIARARDVDHYIRLRQAGVEKPERETFEGALKTGRLALESLGLGPYEARERADVFRRFNIQMVEEMAMV----------ENDTKARAAVYKRTSAML-SEI-------------ITEDREHLS-------------------------LIQRHGWQG-----TEEGKH------TG------NMADEP----ETKPSS---------------------------------------------    -
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
           Pfam domains (1) --TrkA_N-3l9xB03 B:402-514                                                                                         -----------------------------------------------Flavodoxin_2-3l9xB01 B:1001-1167                                                                                                                                       ------- Pfam domains (1)
           Pfam domains (2) --TrkA_N-3l9xB04 B:402-514                                                                                         -----------------------------------------------Flavodoxin_2-3l9xB02 B:1001-1167                                                                                                                                       ------- Pfam domains (2)
         Sec.struct. author ..eeee..hhhhhhhhhhhhhh...eeeee.hhhhhhhhhhhh.eeee....hhhhhhhh......eeee...hhhhhhhhhhhhhhhh...eeeeee.hhhhhhhhhhh.....ee.hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhh.eeeee...hhhhhhhhhhhhhhhh....eeeeehhhhh.....hhhhhhhhhhh..eeeeeee......hhhhhhhhhhhh................eeeeeee...hhhhhh.....hhhhhhhhhhhhhhhh..ee...eee......hhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -RCK_N  PDB: B:401-523 UniProt: 401-523                                                                                     -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                3l9x B  400 MRVIIAGFGRFGQITGRLLLSSGVKMVVLDHDPDHIETLRKFGMKVFYGDATRMDLLESAGAAKAEVLINAIDDPQTNLQLTEMVKEHFPHLQIIARARDVDHYIRLRQAGVEKPERETFEGALKTGRLALESLGLGPYEARERADVFRRFNIQMVEEMAMVMILIIYAHPYPHHSHANKRMLEQARTLEGVEIRSLYQLYPDFNIDIAAEQEALSRADLIVWQHPMQWYSIPPLLKLWIDKVFSHGWAYGHGGTALHGKHLLWAVTTGGGESHFEIGAHPGFDVLSQPLQATAIYCGLNWLPPFAMHCTFICDDETLEGQARHYKQRLLEWQEAH 1174
                                   409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559 ||   1008      1018      1028      1038      1048      1058      1068      1078      1088      1098      1108      1118      1128      1138      1148      1158      1168      
                                                                                                                                                                                           561|                                                                                                                                                                             
                                                                                                                                                                                           1001                                                                                                                                                                             


Chain B from PDB  Type:PROTEIN  Length:336
 aligned with KEFF_ECOLI | P0A754 from UniProtKB/Swiss-Prot  Length:176

    Alignment length:336
                                                                                                                                                                                              1                                                                                                                                                                             
                                     -         -         -         -         -         -         -         -         -         -         -         -         -         -         -         -  |      8        18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168      
          KEFF_ECOLI      - ------------------------------------------------------------------------------------------------------------------------------------------------------------------MILIIYAHPYPHHSHANKRMLEQARTLEGVEIRSLYQLYPDFNIDIAAEQEALSRADLIVWQHPMQWYSIPPLLKLWIDKVFSHGWAYGHGGTALHGKHLLWAVTTGGGESHFEIGAHPGFDVLSQPLQATAIYCGLNWLPPFAMHCTFICDDETLEGQARHYKQRLLEWQEAH  174
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
           Pfam domains (1) --TrkA_N-3l9xB03 B:402-514                                                                                         -----------------------------------------------Flavodoxin_2-3l9xB01 B:1001-1167                                                                                                                                       ------- Pfam domains (1)
           Pfam domains (2) --TrkA_N-3l9xB04 B:402-514                                                                                         -----------------------------------------------Flavodoxin_2-3l9xB02 B:1001-1167                                                                                                                                       ------- Pfam domains (2)
         Sec.struct. author ..eeee..hhhhhhhhhhhhhh...eeeee.hhhhhhhhhhhh.eeee....hhhhhhhh......eeee...hhhhhhhhhhhhhhhh...eeeeee.hhhhhhhhhhh.....ee.hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhh.eeeee...hhhhhhhhhhhhhhhh....eeeeehhhhh.....hhhhhhhhhhh..eeeeeee......hhhhhhhhhhhh................eeeeeee...hhhhhh.....hhhhhhhhhhhhhhhh..ee...eee......hhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                3l9x B  400 MRVIIAGFGRFGQITGRLLLSSGVKMVVLDHDPDHIETLRKFGMKVFYGDATRMDLLESAGAAKAEVLINAIDDPQTNLQLTEMVKEHFPHLQIIARARDVDHYIRLRQAGVEKPERETFEGALKTGRLALESLGLGPYEARERADVFRRFNIQMVEEMAMVMILIIYAHPYPHHSHANKRMLEQARTLEGVEIRSLYQLYPDFNIDIAAEQEALSRADLIVWQHPMQWYSIPPLLKLWIDKVFSHGWAYGHGGTALHGKHLLWAVTTGGGESHFEIGAHPGFDVLSQPLQATAIYCGLNWLPPFAMHCTFICDDETLEGQARHYKQRLLEWQEAH 1174
                                   409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559 ||   1008      1018      1028      1038      1048      1058      1068      1078      1088      1098      1108      1118      1128      1138      1148      1158      1168      
                                                                                                                                                                                           561|                                                                                                                                                                             
                                                                                                                                                                                           1001
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 3L9X)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3L9X)

(-) Pfam Domains  (2, 4)

Asymmetric/Biological Unit
(-)
Clan: Flavoprotein (71)
(-)
Clan: NADP_Rossmann (1239)

(-) Gene Ontology  (30, 33)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (KEFF_ECOLI | P0A754)
molecular function
    GO:0010181    FMN binding    Interacting selectively and non-covalently with flavin mono nucleotide. Flavin mono nucleotide (FMN) is the coenzyme or the prosthetic group of various flavoprotein oxidoreductase enzymes.
    GO:0003955    NAD(P)H dehydrogenase (quinone) activity    Catalysis of the reaction: NAD(P)H + H+ + a quinone = NAD(P)+ + a hydroquinone.
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
biological process
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0032414    positive regulation of ion transmembrane transporter activity    Any process that activates or increases the activity of an ion transporter.
    GO:1901381    positive regulation of potassium ion transmembrane transport    Any process that activates or increases the frequency, rate or extent of potassium ion transmembrane transport.
    GO:0006813    potassium ion transport    The directed movement of potassium ions (K+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
cellular component
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Chain A,B   (KEFC_ECOLI | P03819)
molecular function
    GO:0015297    antiporter activity    Enables the active transport of a solute across a membrane by a mechanism whereby two or more species are transported in opposite directions in a tightly coupled process not directly linked to a form of energy other than chemiosmotic energy. The reaction is: solute A(out) + solute B(in) = solute A(in) + solute B(out).
    GO:0008324    cation transmembrane transporter activity    Enables the transfer of cation from one side of the membrane to the other.
    GO:0019899    enzyme binding    Interacting selectively and non-covalently with any enzyme.
    GO:0015503    glutathione-regulated potassium exporter activity    Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: K+(in) + H+(out) = K+(out) + H+(in), where glutathione maintains the closed state.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
    GO:0015079    potassium ion transmembrane transporter activity    Enables the transfer of potassium ions (K+) from one side of a membrane to the other.
    GO:0015299    solute:proton antiporter activity    Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: solute(out) + H+(in) = solute(in) + H+(out).
    GO:0015643    toxic substance binding    Interacting selectively and non-covalently with a toxic substance, a poisonous substance that causes damage to biological systems.
biological process
    GO:0098655    cation transmembrane transport    A process in which a cation is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    GO:0006812    cation transport    The directed movement of cations, atoms or small molecules with a net positive charge, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:1902600    hydrogen ion transmembrane transport    The directed movement of hydrogen ion (proton) across a membrane.
    GO:0006811    ion transport    The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0071805    potassium ion transmembrane transport    A process in which a potassium ion is transported from one side of a membrane to the other.
    GO:0006813    potassium ion transport    The directed movement of potassium ions (K+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0006885    regulation of pH    Any process involved in the maintenance of an internal equilibrium of hydrogen ions, thereby modulating the internal pH, within an organism or cell.
    GO:0051595    response to methylglyoxal    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a methylglyoxal stimulus. Methylglyoxal is a 2-oxoaldehyde derived from propanal.
    GO:0009636    response to toxic substance    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a toxic stimulus.
    GO:0055085    transmembrane transport    The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0005887    integral component of plasma membrane    The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        KEFC_ECOLI | P03819: 3eyw 3l9w
        KEFF_ECOLI | P0A754: 3eyw 3l9w

(-) Related Entries Specified in the PDB File

3l9w