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(-) Description

Title :  ELECTRON CRYSTALLOGRAPHIC STRUCTURE OF LENS AQUAPORIN-0 (AQP0) (LENS MIP) AT 1.9A RESOLUTION, IN A CLOSED PORE STATE
 
Authors :  T. Gonen, Y. Cheng, P. Sliz, Y. Hiroaki, Y. Fujiyoshi, S. C. Harrison, T.
Date :  03 Oct 05  (Deposition) - 06 Dec 05  (Release) - 13 Jul 11  (Revision)
Method :  ELECTRON CRYSTALLOGRAPHY
Resolution :  1.90
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (8x)
Biol. Unit 2:  A  (8x)
Keywords :  Aquaporin-0 Junctions, Aqp0, Lens Mip, Lipid-Protein Interactions, Membrane, Lipid Bilayer, Closed Water Pore, Electron Crystallography, , Membrane Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  T. Gonen, Y. Cheng, P. Sliz, Y. Hiroaki, Y. Fujiyoshi, S. C. Harrison, T. Walz
Lipid-Protein Interactions In Double-Layered Two-Dimensiona Aqp0 Crystals.
Nature V. 438 633 2005
PubMed-ID: 16319884  |  Reference-DOI: 10.1038/NATURE04321

(-) Compounds

Molecule 1 - LENS FIBER MAJOR INTRINSIC PROTEIN
    ChainsA
    Organism CommonSHEEP
    Organism ScientificOVIS ARIES
    Organism Taxid9940
    SynonymAQUAPORIN-0

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit A
Biological Unit 1 (8x)A
Biological Unit 2 (8x)A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 9)

Asymmetric Unit (1, 9)
No.NameCountTypeFull Name
1MC39Ligand/Ion1,2-DIMYRISTOYL-RAC-GLYCERO-3-PHOSPHOCHOLINE
Biological Unit 1 (1, 72)
No.NameCountTypeFull Name
1MC372Ligand/Ion1,2-DIMYRISTOYL-RAC-GLYCERO-3-PHOSPHOCHOLINE
Biological Unit 2 (1, 72)
No.NameCountTypeFull Name
1MC372Ligand/Ion1,2-DIMYRISTOYL-RAC-GLYCERO-3-PHOSPHOCHOLINE

(-) Sites  (9, 9)

Asymmetric Unit (9, 9)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:196 , MC3 A:269 , MC3 A:270 , MC3 A:272 , HOH A:273 , HOH A:304BINDING SITE FOR RESIDUE MC3 A 264
2AC2SOFTWAREALA A:102 , VAL A:103 , TYR A:105 , SER A:106 , MC3 A:270 , HOH A:291 , HOH A:301 , HOH A:327BINDING SITE FOR RESIDUE MC3 A 265
3AC3SOFTWARELEU A:83 , LEU A:84 , ILE A:87 , VAL A:90 , VAL A:91 , LEU A:94 , LYS A:238 , MC3 A:267 , MC3 A:271BINDING SITE FOR RESIDUE MC3 A 266
4AC4SOFTWAREARG A:5 , SER A:6 , PHE A:9 , TRP A:10 , LEU A:84 , CYS A:88 , MC3 A:266 , MC3 A:272BINDING SITE FOR RESIDUE MC3 A 267
5AC5SOFTWAREALA A:7 , TRP A:10 , ARG A:11 , PHE A:14BINDING SITE FOR RESIDUE MC3 A 268
6AC6SOFTWAREMC3 A:264 , MC3 A:272BINDING SITE FOR RESIDUE MC3 A 269
7AC7SOFTWARELEU A:95 , TYR A:105 , ILE A:193 , LEU A:194 , ARG A:196 , MC3 A:264 , MC3 A:265 , HOH A:326BINDING SITE FOR RESIDUE MC3 A 270
8AC8SOFTWAREMC3 A:266BINDING SITE FOR RESIDUE MC3 A 271
9AC9SOFTWAREMC3 A:264 , MC3 A:267 , MC3 A:269BINDING SITE FOR RESIDUE MC3 A 272

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2B6O)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2B6O)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2B6O)

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1MIPPS00221 MIP family signature.MIP_SHEEP66-74  1A:66-74
Biological Unit 1 (1, 8)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1MIPPS00221 MIP family signature.MIP_SHEEP66-74  8A:66-74
Biological Unit 2 (1, 8)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1MIPPS00221 MIP family signature.MIP_SHEEP66-74  8A:66-74

(-) Exons   (0, 0)

(no "Exon" information available for 2B6O)

(-) Sequences/Alignments

Asymmetric 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:235
 aligned with MIP_SHEEP | Q6J8I9 from UniProtKB/Swiss-Prot  Length:263

    Alignment length:235
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234     
            MIP_SHEEP     5 RSASFWRAIFAEFFATLFYVFFGLGASLRWAPGPLHVLQVALAFGLALATLVQAVGHISGAHVNPAVTFAFLVGSQMSLLRAICYVVAQLLGAVAGAAVLYSVTPPAVRGNLALNTLHPGVSVGQATIVEIFLTLQFVLCIFATYDERRNGRLGSVALAVGFSLTLGHLFGMYYTGAGMNPARSFAPAILTRNFTNHWVYWVGPVIGAGLGSLLYDFLLFPRLKSVSERLSILKG 239
               SCOP domains d2b6oa_ A: Aquaporin-0                                                                                                                                                                                                                      SCOP domains
               CATH domains 2b6oA00 A:5-239 Glycerol uptake facilitator protein.                                                                                                                                                                                        CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhh.................hhhhhhhhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhh.......hhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------MIP      --------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2b6o A   5 RSASFWRAIFAEFFATLFYVFFGLGASLRWAPGPLHVLQVALAFGLALATLVQAVGHISGAHVNPAVTFAFLVGSQMSLLRAICYVVAQLLGAVAGAAVLYSVTPPAVRGNLALNTLHPGVSVGQATIVEIFLTLQFVLCIFATYDERRNGRLGSVALAVGFSLTLGHLFGMYYTGAGMNPARSFAPAILTRNFTNHWVYWVGPVIGAGLGSLLYDFLLFPRLKSVSERLSILKG 239
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234     

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  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)

Asymmetric Unit

(-) CATH Domains  (1, 1)

Asymmetric Unit

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2B6O)

(-) Gene Ontology  (21, 21)

Asymmetric Unit(hide GO term definitions)
Chain A   (MIP_SHEEP | Q6J8I9)
molecular function
    GO:0005516    calmodulin binding    Interacting selectively and non-covalently with calmodulin, a calcium-binding protein with many roles, both in the calcium-bound and calcium-free states.
    GO:0005243    gap junction channel activity    A wide pore channel activity that enables a direct cytoplasmic connection from one cell to an adjacent cell. The gap junction can pass large solutes as well as electrical signals between cells. Gap junctions consist of two gap junction hemi-channels, or connexons, one contributed by each membrane through which the gap junction passes.
    GO:0005212    structural constituent of eye lens    The action of a molecule that contributes to the structural integrity of the lens of an eye.
    GO:0005215    transporter activity    Enables the directed movement of substances (such as macromolecules, small molecules, ions) into, out of or within a cell, or between cells.
    GO:0015250    water channel activity    Transport systems of this type enable facilitated diffusion of water (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism.
biological process
    GO:1990349    gap junction-mediated intercellular transport    The movement of substances between cells via gap junctions. A gap junction is a fine cytoplasmic channel, found in animal cells, that connects the cytoplasm of one cell to that of an adjacent cell, allowing ions and other molecules to pass freely between the two cells.
    GO:0002088    lens development in camera-type eye    The process whose specific outcome is the progression of the lens over time, from its formation to the mature structure. The lens is a transparent structure in the eye through which light is focused onto the retina. An example of this process is found in Mus musculus.
    GO:0045785    positive regulation of cell adhesion    Any process that activates or increases the frequency, rate or extent of cell adhesion.
    GO:0051289    protein homotetramerization    The formation of a protein homotetramer, a macromolecular structure consisting of four noncovalently associated identical subunits.
    GO:0050896    response to stimulus    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 stimulus. The process begins with detection of the stimulus and ends with a change in state or activity or the cell or organism.
    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.
    GO:0007601    visual perception    The series of events required for an organism to receive a visual stimulus, convert it to a molecular signal, and recognize and characterize the signal. Visual stimuli are detected in the form of photons and are processed to form an image.
    GO:0006833    water transport    The directed movement of water (H2O) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
cellular component
    GO:0030054    cell junction    A cellular component that forms a specialized region of connection between two or more cells or between a cell and the extracellular matrix. At a cell junction, anchoring proteins extend through the plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix.
    GO:0005783    endoplasmic reticulum    The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
    GO:0005921    gap junction    A cell-cell junction composed of pannexins or innexins and connexins, two different families of channel-forming proteins.
    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)

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        MIP_SHEEP | Q6J8I91sor 2b6p 3j41 3m9i

(-) Related Entries Specified in the PDB File

1sor 3A RESOLUTION STRUCTURE OF LENS AQUAPORIN 0 (AQP0; MIP) IN A CLOSED PORE STATE DETERMINED BY ELECTRON CRYSTALLOGRAPHY.
1ymg 2.2A RESOLUTION STRUCTURE OF LENS AQUAPORIN0 (AQP0; MIP) IN AN OPEN PORE STATE DETERMINED BY XRAY CRYSTALLOGRAPHY.
2b6p 2.5A RESOLUTION STRUCTURE OF LENS AQUAPORIN0 (AQP0; MIP) IN AN OPEN PORE STATE DETERMINED BY XRAY CRYSTALLOGRAPHY.