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Theoretical Model  (Jmol Viewer)

(-) Description

Title :  STRUCTURAL MODEL OF THE MECHANOSENSITIVE CHANNEL FROM ESCHERICHIA COLI: AN OPEN GATE STRUCTURE
 
Authors :  E. Perozo, D. M. Cortes, P. Sompornpisut, A. Koda, B. Martinac
Date :  05 Feb 02  (Deposition) - 11 Sep 02  (Release) - 11 Sep 02  (Revision)
Method :  THEORETICAL MODEL
Resolution :  NOT APPLICABLE
Chains :  Theor. Model :  A,B,C,D,E
Keywords :  Mechanosensitive, Ion Channel, Membrane Proteins (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  E. Perozo, D. M. Cortes, P. Sompornpisut, A. Koda, B. Martinac
Open Channel Structure Of Mscl And The Gating Mechanism Of Mechanosensitive Channels
Nature V. 418 942 2002
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - MECHANOSENSITIVE CHANNEL
    ChainsA, B, C, D, E
    FragmentTRANSMEMBRANE SEGMENT (RESIDUES 14-96)
    Organism CommonBACTERIA
    Organism ScientificESCHERICHIA COLI

 Structural Features

(-) Chains, Units

  
Theoretical Model 

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1KYM)

(-) Sites  (0, 0)

(no "Site" information available for 1KYM)

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1KYM)

(-) Sequences/Alignments

Theoretical Model
   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:55
 aligned with MSCL_ECO57 | P0A743 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:83
                                    23        33        43        53        63        73        83        93   
            MSCL_ECO57   14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMPPLGLLIGGIDFKQFAVTLRDAQGDIPAVVMHYGVFIQNVFDFLIVAFAIFMAI 96
               SCOP domains ----------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............................----------------------------......................... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------- Transcript
                  1kym A 14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMP----------------------------VMHYGVFIQNVFDFLIVAFAIFMAI 96
                                    23        33        43         -         -        73        83        93   
                                                        43                           72                        

Chain A from PDB  Type:PROTEIN  Length:55
 aligned with MSCL_ECOLI | P0A742 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:83
                                    23        33        43        53        63        73        83        93   
            MSCL_ECOLI   14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMPPLGLLIGGIDFKQFAVTLRDAQGDIPAVVMHYGVFIQNVFDFLIVAFAIFMAI 96
               SCOP domains ----------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............................----------------------------......................... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------- Transcript
                  1kym A 14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMP----------------------------VMHYGVFIQNVFDFLIVAFAIFMAI 96
                                    23        33        43         -         -        73        83        93   
                                                        43                           72                        

Chain B from PDB  Type:PROTEIN  Length:55
 aligned with MSCL_ECO57 | P0A743 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:83
                                    23        33        43        53        63        73        83        93   
            MSCL_ECO57   14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMPPLGLLIGGIDFKQFAVTLRDAQGDIPAVVMHYGVFIQNVFDFLIVAFAIFMAI 96
               SCOP domains ----------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............................----------------------------......................... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------- Transcript
                  1kym B 14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMP----------------------------VMHYGVFIQNVFDFLIVAFAIFMAI 96
                                    23        33        43         -         -        73        83        93   
                                                        43                           72                        

Chain B from PDB  Type:PROTEIN  Length:55
 aligned with MSCL_ECOLI | P0A742 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:83
                                    23        33        43        53        63        73        83        93   
            MSCL_ECOLI   14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMPPLGLLIGGIDFKQFAVTLRDAQGDIPAVVMHYGVFIQNVFDFLIVAFAIFMAI 96
               SCOP domains ----------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............................----------------------------......................... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------- Transcript
                  1kym B 14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMP----------------------------VMHYGVFIQNVFDFLIVAFAIFMAI 96
                                    23        33        43         -         -        73        83        93   
                                                        43                           72                        

Chain C from PDB  Type:PROTEIN  Length:55
 aligned with MSCL_ECO57 | P0A743 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:83
                                    23        33        43        53        63        73        83        93   
            MSCL_ECO57   14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMPPLGLLIGGIDFKQFAVTLRDAQGDIPAVVMHYGVFIQNVFDFLIVAFAIFMAI 96
               SCOP domains ----------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............................----------------------------......................... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------- Transcript
                  1kym C 14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMP----------------------------VMHYGVFIQNVFDFLIVAFAIFMAI 96
                                    23        33        43         -         -        73        83        93   
                                                        43                           72                        

Chain C from PDB  Type:PROTEIN  Length:55
 aligned with MSCL_ECOLI | P0A742 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:83
                                    23        33        43        53        63        73        83        93   
            MSCL_ECOLI   14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMPPLGLLIGGIDFKQFAVTLRDAQGDIPAVVMHYGVFIQNVFDFLIVAFAIFMAI 96
               SCOP domains ----------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............................----------------------------......................... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------- Transcript
                  1kym C 14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMP----------------------------VMHYGVFIQNVFDFLIVAFAIFMAI 96
                                    23        33        43         -         -        73        83        93   
                                                        43                           72                        

Chain D from PDB  Type:PROTEIN  Length:55
 aligned with MSCL_ECO57 | P0A743 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:83
                                    23        33        43        53        63        73        83        93   
            MSCL_ECO57   14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMPPLGLLIGGIDFKQFAVTLRDAQGDIPAVVMHYGVFIQNVFDFLIVAFAIFMAI 96
               SCOP domains ----------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............................----------------------------......................... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------- Transcript
                  1kym D 14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMP----------------------------VMHYGVFIQNVFDFLIVAFAIFMAI 96
                                    23        33        43         -         -        73        83        93   
                                                        43                           72                        

Chain D from PDB  Type:PROTEIN  Length:55
 aligned with MSCL_ECOLI | P0A742 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:83
                                    23        33        43        53        63        73        83        93   
            MSCL_ECOLI   14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMPPLGLLIGGIDFKQFAVTLRDAQGDIPAVVMHYGVFIQNVFDFLIVAFAIFMAI 96
               SCOP domains ----------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............................----------------------------......................... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------- Transcript
                  1kym D 14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMP----------------------------VMHYGVFIQNVFDFLIVAFAIFMAI 96
                                    23        33        43         -         -        73        83        93   
                                                        43                           72                        

Chain E from PDB  Type:PROTEIN  Length:55
 aligned with MSCL_ECO57 | P0A743 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:83
                                    23        33        43        53        63        73        83        93   
            MSCL_ECO57   14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMPPLGLLIGGIDFKQFAVTLRDAQGDIPAVVMHYGVFIQNVFDFLIVAFAIFMAI 96
               SCOP domains ----------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............................----------------------------......................... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------- Transcript
                  1kym E 14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMP----------------------------VMHYGVFIQNVFDFLIVAFAIFMAI 96
                                    23        33        43         -         -        73        83        93   
                                                        43                           72                        

Chain E from PDB  Type:PROTEIN  Length:55
 aligned with MSCL_ECOLI | P0A742 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:83
                                    23        33        43        53        63        73        83        93   
            MSCL_ECOLI   14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMPPLGLLIGGIDFKQFAVTLRDAQGDIPAVVMHYGVFIQNVFDFLIVAFAIFMAI 96
               SCOP domains ----------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............................----------------------------......................... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------- Transcript
                  1kym E 14 GNVVDLAVGVIIGAAFGKIVSSLVADIIMP----------------------------VMHYGVFIQNVFDFLIVAFAIFMAI 96
                                    23        33        43         -         -        73        83        93   
                                                        43                           72                        

   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 1KYM)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1KYM)

(-) Gene Ontology  (12, 20)

Theoretical Model(hide GO term definitions)
Chain A,B,C,D,E   (MSCL_ECOLI | P0A742)
molecular function
    GO:0015267    channel activity    Enables the energy-independent facilitated diffusion, mediated by passage of a solute through a transmembrane aqueous pore or channel. Stereospecificity is not exhibited but this transport may be specific for a particular molecular species or class of molecules.
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    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:0008381    mechanically-gated ion channel activity    Enables the transmembrane transfer of an ion by a channel that opens in response to a mechanical stress.
biological process
    GO:0034220    ion transmembrane transport    A process in which an ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    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: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.

Chain A,B,C,D,E   (MSCL_ECO57 | P0A743)
molecular function
    GO:0015267    channel activity    Enables the energy-independent facilitated diffusion, mediated by passage of a solute through a transmembrane aqueous pore or channel. Stereospecificity is not exhibited but this transport may be specific for a particular molecular species or class of molecules.
    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).
biological process
    GO:0034220    ion transmembrane transport    A process in which an ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    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: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: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
        MSCL_ECO57 | P0A7431kyk 1kyl
        MSCL_ECOLI | P0A7421kyk 1kyl 4lku

(-) Related Entries Specified in the PDB File

1kyk HOMOLOGY MODEL OF THE MECHANOSENSITIVE CHANNEL FROM ESCHERICHIA COLI: A CLOSED STATE
1kyl STRUCTURAL MODEL OF THE MECHANOSENSITIVE CHANNEL FROM ESCHERICHIA COLI: AN INTERMEDIATE CLOSED STATE