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(-) Description

Title :  INACTIVATION GATE OF POTASSIUM CHANNEL RCK4, NMR, 8 STRUCTURES
 
Authors :  C. Antz, M. Geyer, B. Fakler, M. Schott, R. Frank, H. R. Guy, J. P. Ruppersberg, H. R. Kalbitzer
Date :  15 Nov 96  (Deposition) - 05 Jun 97  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (8x)
Keywords :  Nmr, Potassium Channel, Inactivation Gate (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  C. Antz, M. Geyer, B. Fakler, M. K. Schott, H. R. Guy, R. Frank, J. P. Ruppersberg, H. R. Kalbitzer
Nmr Structure Of Inactivation Gates From Mammalian Voltage-Dependent Potassium Channels.
Nature V. 385 272 1997
PubMed-ID: 9000078  |  Reference-DOI: 10.1038/385272A0
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - POTASSIUM CHANNEL PROTEIN RCK4
    Chains: A
    Engineered: YES
    Fragment: INACTIVATION GATE
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606

 Structural Features

(-) Chains, Units

  
NMR Structure (8x): 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

NMR Structure (1, 1)
No.NameCountTypeFull Name
1AAR1Mod. Amino AcidARGININEAMIDE

(-) Sites  (0, 0)

(no "Site" information available for 1ZTO)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1ZTO)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1ZTO)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1ZTO)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1ZTO)

(-) Exons   (0, 0)

(no "Exon" information available for 1ZTO)

(-) Sequences/Alignments

NMR Structure
   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:37
 aligned with KCNA4_RAT | P15385 from UniProtKB/Swiss-Prot  Length:655

    Alignment length:37
                                    10        20        30       
             KCNA4_RAT    1 MEVAMVSAESSGCNSHMPYGYAAQARARERERLAHSR 37
               SCOP domains d1ztoa_ A: Potassium channel RCK4     SCOP domains
               CATH domains ------------------------------------- CATH domains
               Pfam domains K_channel_TID-1ztoA01 A:1-37          Pfam domains
         Sec.struct. author ....................hhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------- PROSITE
                 Transcript ------------------------------------- Transcript
                  1zto A  1 MEVAMVSAESSGCNSHMPYGYAAQARARERERLAHSr 37
                                    10        20        30      |
                                                               37-AAR
   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  (1, 1)

NMR Structure
(-)
Class: Peptides (792)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1ZTO)

(-) Pfam Domains  (1, 1)

NMR Structure
(-)
Clan: no clan defined [family: K_channel_TID] (2)

(-) Gene Ontology  (21, 21)

NMR Structure(hide GO term definitions)
Chain A   (KCNA4_RAT | P15385)
molecular function
    GO:0005251    delayed rectifier potassium channel activity    Enables the transmembrane transfer of a potassium ion by a delayed rectifying voltage-gated channel. A delayed rectifying current-voltage relation is one where channel activation kinetics are time-dependent, and inactivation is slow.
    GO:0005216    ion channel activity    Enables the facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. May be either selective (it enables passage of a specific ion only) or non-selective (it enables passage of two or more ions of same charge but different size).
    GO:0005267    potassium channel activity    Enables the facilitated diffusion of a potassium ion (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism.
    GO:0030955    potassium ion binding    Interacting selectively and non-covalently with potassium (K+) ions.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0005244    voltage-gated ion channel activity    Enables the transmembrane transfer of an ion by a voltage-gated channel. An ion is an atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
    GO:0005249    voltage-gated potassium channel activity    Enables the transmembrane transfer of a potassium ion by a voltage-gated channel. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
biological process
    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:0051260    protein homooligomerization    The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of identical component monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
    GO:0034765    regulation of ion transmembrane transport    Any process that modulates the frequency, rate or extent of the directed movement of ions from one side of a membrane to the other.
    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:0030424    axon    The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
    GO:0042995    cell projection    A prolongation or process extending from a cell, e.g. a flagellum or axon.
    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.
    GO:0008076    voltage-gated potassium channel complex    A protein complex that forms a transmembrane channel through which potassium ions may cross a cell membrane in response to changes in membrane potential.

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 Related Entries

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        KCNA4_RAT | P15385: 1kn7

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