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(-) Description

Title :  STRUCTURAL AND FUNCTIONAL ANALYSIS OF TRANSMEMBRANE SEGMENT IV OF THE SALT TOLERANCE PROTEIN SOD2
 
Authors :  A. Ullah, G. Kemp, B. Lee, C. Alves, H. Young, B. D. Sykes, L. Fliegel
Date :  02 May 13  (Deposition) - 05 Jun 13  (Release) - 12 Oct 16  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (25x)
NMR Structure *:  A  (1x)
Keywords :  Sod2, Transmembrane, Membrane Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  A. Ullah, G. Kemp, B. Lee, C. Alves, H. Young, B. D. Sykes, L. Fliegel
Structural And Functional Analysis Of Transmembrane Segment Iv Of The Salt Tolerance Protein Sod2.
J. Biol. Chem. V. 288 24609 2013
PubMed-ID: 23836910  |  Reference-DOI: 10.1074/JBC.M113.483065

(-) Compounds

Molecule 1 - NA(+)/H(+) ANTIPORTER
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainXL1-BLUE
    Expression System Taxid562
    Expression System VectorPMAL-C2X
    GeneSOD2, SPAC977.10
    Organism CommonFISSION YEAST
    Organism ScientificSCHIZOSACCHAROMYCES POMBE
    Organism Taxid284812
    Other DetailsMALTOSE BINDING PROTEIN FUSION
    Strain972 / ATCC 24843

 Structural Features

(-) Chains, Units

  1
NMR Structure (25x)A
NMR Structure * (1x)A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 2M7X)

(-) Sites  (0, 0)

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(-) SS Bonds  (0, 0)

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 Sequence-Structure Mapping

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(-) PROSITE Motifs  (0, 0)

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(-) Exons   (0, 0)

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(-) 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
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Chain A from PDB  Type:PROTEIN  Length:30
 aligned with NAH_SCHPO | P36606 from UniProtKB/Swiss-Prot  Length:468

    Alignment length:30
                                   134       144       154
            NAH_SCHPO   125 LFPQINFLGSLLIAGCITSTDPVLSALIVG 154
               SCOP domains ------------------------------ SCOP domains
               CATH domains ------------------------------ CATH domains
               Pfam domains ------------------------------ Pfam domains
         Sec.struct. author ....hhhhhhhhhhhhhhh..hhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------ PROSITE
                 Transcript ------------------------------ Transcript
                 2m7x A 125 LFPQINFLGSLLIAGCITSTDPVLSALIVG 154
                                   134       144       154

   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)

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(-) CATH Domains  (0, 0)

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(-) Pfam Domains  (0, 0)

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(-) Gene Ontology  (22, 22)

NMR Structure(hide GO term definitions)
Chain A   (NAH_SCHPO | P36606)
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:0015385    sodium: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: Na+(out) + H+(in) = Na+(in) + H+(out).
    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).
biological process
    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:0030004    cellular monovalent inorganic cation homeostasis    Any process involved in the maintenance of an internal steady state of monovalent inorganic cations at the level of a cell.
    GO:0030007    cellular potassium ion homeostasis    Any process involved in the maintenance of an internal steady state of potassium ions at the level of a cell.
    GO:0006883    cellular sodium ion homeostasis    Any process involved in the maintenance of an internal steady state of sodium ions at the level of a cell.
    GO:1902600    hydrogen ion transmembrane transport    The directed movement of hydrogen ion (proton) across a membrane.
    GO:0051452    intracellular pH reduction    Any process that reduces the internal pH of a cell, measured by the concentration of the hydrogen ion.
    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:0036376    sodium ion export from cell    The directed movement of sodium ions out of a cell.
    GO:0006814    sodium ion transport    The directed movement of sodium ions (Na+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    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:0042175    nuclear outer membrane-endoplasmic reticulum membrane network    The continuous network of membranes encompassing the nuclear outer membrane and the endoplasmic reticulum membrane.
    GO:1990578    perinuclear endoplasmic reticulum membrane    The membrane of the perinuclear endoplasmic reticulum, which is the portion of endoplasmic reticulum, the intracellular network of tubules and cisternae, that occurs near the nucleus.
    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:0031520    plasma membrane of cell tip    The portion of the plasma membrane surrounding the cell tip.
    GO:0005628    prospore membrane    The prospore membrane is a double-membraned structure that extends from the cytoplasmic face of the spindle pole bodies to encompass the spindle pole bodies and the four nuclear lobes that are formed during meiosis. It helps isolate the meiotic nuclei from the cytoplasm during spore formation and serves as a foundation for the formation of the spore walls. An example of this component is found in Schizosaccharomyces pombe.

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