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(-) Description

Title :  CRYSTAL STRUCTURE OF YEAST T-SNARE PROTEIN SSO1
 
Authors :  M. Munson, X. Chen, A. E. Cocina, S. M. Schultz, F. M. Hughson
Date :  04 Aug 00  (Deposition) - 11 Oct 00  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.10
Chains :  Asym./Biol. Unit :  A
Keywords :  Four Helix Bundle, Alpha Helix, Membrane Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  M. Munson, X. Chen, A. E. Cocina, S. M. Schultz, F. M. Hughson
Interactions Within The Yeast T-Snare Sso1P That Control Snare Complex Assembly.
Nat. Struct. Biol. V. 7 894 2000
PubMed-ID: 11017200  |  Reference-DOI: 10.1038/79659
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - SSO1 PROTEIN
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPLM-1
    Expression System Taxid562
    FragmentCYTOPLASMIC DOMAIN
    Organism CommonBAKER'S YEAST
    Organism ScientificSACCHAROMYCES CEREVISIAE
    Organism Taxid4932
    Other DetailsYEAST T-SNARE PROTEIN

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric/Biological Unit (1, 2)
No.NameCountTypeFull Name
1ZN2Ligand/IonZINC ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREMET A:30 , HIS A:31 , ASP A:166 , HIS A:197BINDING SITE FOR RESIDUE ZN A 501
2AC2SOFTWAREHIS A:75 , HIS A:78 , HIS A:107 , GLU A:223BINDING SITE FOR RESIDUE ZN A 502

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1T_SNAREPS50192 t-SNARE coiled-coil homology domain profile.SSO1_YEAST190-252  1A:190-225
2SYNTAXINPS00914 Syntaxin / epimorphin family signature.SSO1_YEAST196-235  1A:196-225

(-) Exons   (1, 1)

Asymmetric/Biological Unit (1, 1)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1YPL232W1YPL232W.1XVI:107275-108147873SSO1_YEAST1-2902901A:30-225 (gaps)196

(-) 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:190
 aligned with SSO1_YEAST | P32867 from UniProtKB/Swiss-Prot  Length:290

    Alignment length:196
                                    39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219      
           SSO1_YEAST    30 GHDFVGFMNKISQINRDLDKYDHTINQVDSLHKRLLTEVNEEQASHLRHSLDNFVAQATDLQFKLKNEIKSAQRDGIHDTNKQAQAENSRQRFLKLIQDYRIVDSNYKEENKEQAKRQYMIIQPEATEDEVEAAISDVGGQQIFSQALLNANRRGEAKTALAEVQARHQELLKLEKSMAELTQLFNDMEELVIEQQ 225
               SCOP domains d1fioa_ A: Sso1                                                                                                                                                                                      SCOP domains
               CATH domains 1fioA00 A:30-225  [code=1.20.58.70, no name defined]                                                                                                                                                 CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhh.------hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----------------------------------------------------------------------------------------------------------------------------------------------------------------T_SNARE  PDB: A:190-225              PROSITE (1)
                PROSITE (2) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------SYNTAXIN  PDB: A:196-225       PROSITE (2)
               Transcript 1 Exon 1.1  PDB: A:30-225 (gaps) UniProt: 1-290 [INCOMPLETE]                                                                                                                                           Transcript 1
                 1fio A  30 MHDFVGFMNKISQINRDLDKYDHTINQVDSLHKRLLTEVNEEQASHLRHSLDNFVAQATDLQFKLKNEIKSAQRDGIHDTNKQAQAENSRQRFLKLIQDYRIVDSNYKEENKEQAKRQYMIIQPEATEDEVEAAISDVGGQQIFSQALL------EAKTALAEVQARHQELLKLEKSMAELTQLFNDMEELVIEQQ 225
                                    39        49        59        69        79        89        99       109       119       129       139       149       159       169        |-     | 189       199       209       219      
                                                                                                                                                                              178    185                                        

   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)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (19, 19)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (SSO1_YEAST | P32867)
molecular function
    GO:0005484    SNAP receptor activity    Acting as a marker to identify a membrane and interacting selectively with one or more SNAREs on another membrane to mediate membrane fusion.
    GO:0000149    SNARE binding    Interacting selectively and non-covalently with a SNARE (soluble N-ethylmaleimide-sensitive factor attached protein receptor) protein.
    GO:0070300    phosphatidic acid binding    Interacting selectively and non-covalently with phosphatidic acid, any of a class of glycerol phosphate in which both the remaining hydroxyl groups of the glycerol moiety are esterified with fatty acids.
    GO:0043325    phosphatidylinositol-3,4-bisphosphate binding    Interacting selectively and non-covalently with phosphatidylinositol-3,4-bisphosphate, a derivative of phosphatidylinositol in which the inositol ring is phosphorylated at the 3' and 4' positions.
    GO:0080025    phosphatidylinositol-3,5-bisphosphate binding    Interacting selectively and non-covalently with phosphatidylinositol-3,5-bisphosphate, a derivative of phosphatidylinositol in which the inositol ring is phosphorylated at the 3' and 5' positions.
    GO:0005546    phosphatidylinositol-4,5-bisphosphate binding    Interacting selectively and non-covalently with phosphatidylinositol-4,5-bisphosphate, a derivative of phosphatidylinositol in which the inositol ring is phosphorylated at the 4' and 5' positions.
biological process
    GO:0030437    ascospore formation    The process in which cells that are products of meiosis acquire the specialized features of ascospores. Ascospores are generally found in clusters of four or eight spores within a single mother cell, the ascus, and are characteristic of the ascomycete fungi (phylum Ascomycota).
    GO:0031321    ascospore-type prospore assembly    During ascospore formation, the process in which each haploid nucleus becomes encapsulated by a double membrane.
    GO:0006886    intracellular protein transport    The directed movement of proteins in a cell, including the movement of proteins between specific compartments or structures within a cell, such as organelles of a eukaryotic cell.
    GO:0048278    vesicle docking    The initial attachment of a transport vesicle membrane to the target membrane, mediated by proteins protruding from the membrane of the vesicle and the target membrane. Docking requires only that the two membranes come close enough for these proteins to interact and adhere.
    GO:0006906    vesicle fusion    Fusion of the membrane of a transport vesicle with its target membrane.
    GO:0016192    vesicle-mediated transport    A cellular transport process in which transported substances are moved in membrane-bounded vesicles; transported substances are enclosed in the vesicle lumen or located in the vesicle membrane. The process begins with a step that directs a substance to the forming vesicle, and includes vesicle budding and coating. Vesicles are then targeted to, and fuse with, an acceptor membrane.
cellular component
    GO:0031201    SNARE complex    A protein complex involved in membrane fusion; a stable ternary complex consisting of a four-helix bundle, usually formed from one R-SNARE and three Q-SNAREs with an ionic layer sandwiched between hydrophobic layers. One well-characterized example is the neuronal SNARE complex formed of synaptobrevin 2, syntaxin 1a, and SNAP-25.
    GO:0012505    endomembrane system    A collection of membranous structures involved in transport within the cell. The main components of the endomembrane system are endoplasmic reticulum, Golgi bodies, vesicles, cell membrane and nuclear envelope. Members of the endomembrane system pass materials through each other or though the use of vesicles.
    GO:0000329    fungal-type vacuole membrane    The lipid bilayer surrounding a vacuole, the shape of which correlates with cell cycle phase. The membrane separates its contents from the cytoplasm of the cell. An example of this structure is found in Saccharomyces cerevisiae.
    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.
    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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 Related Entries

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

UniProtKB/Swiss-Prot
        SSO1_YEAST | P328673b5n

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