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(-) Description

Title :  CRYSTAL STRUCTURE OF CHEY MUTANT D53A OF HELICOBACTER PYLORI
 
Authors :  K. H. Lam, T. K. Ling, S. W. Au
Date :  12 Apr 09  (Deposition) - 09 Mar 10  (Release) - 12 May 10  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym./Biol. Unit :  A
Keywords :  Chemotaxis, Sulfate-Bound Chey, Cytoplasm, Flagellar Rotation, Magnesium, Metal-Binding, Phosphoprotein, Two-Component Regulatory System, Signaling Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  K. H. Lam, T. K. Ling, S. W. Au
Crystal Structure Of Activated Chey1 From Helicobacter Pylori.
J. Bacteriol. V. 192 2324 2010
PubMed-ID: 20207758  |  Reference-DOI: 10.1128/JB.00603-09

(-) Compounds

Molecule 1 - CHEMOTAXIS PROTEIN CHEY HOMOLOG
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPGEX-6-2
    Expression System StrainBL21
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneCHEY1
    MutationYES
    Organism ScientificHELICOBACTER PYLORI
    Organism Taxid85962
    Strain26695
    SynonymCHEMOTAXIS PROTEIN CHEY1

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 3)

Asymmetric/Biological Unit (2, 3)
No.NameCountTypeFull Name
1MG1Ligand/IonMAGNESIUM ION
2SO42Ligand/IonSULFATE ION

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREMET A:12 , LEU A:29 , GLU A:30 , LYS A:105 , HOH A:129BINDING SITE FOR RESIDUE MG A 125
2AC2SOFTWARELYS A:2 , ASP A:46 , LYS A:48 , GLY A:87 , LYS A:88 , ASN A:100BINDING SITE FOR RESIDUE SO4 A 126
3AC3SOFTWARELYS A:17 , ALA A:53 , TRP A:54 , ASN A:55 , THR A:83 , THR A:84 , LYS A:105 , HOH A:137 , HOH A:142 , HOH A:157BINDING SITE FOR RESIDUE SO4 A 127

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3H1F)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Lys A:105 -Pro A:106

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (1, 1)

Asymmetric/Biological Unit (1, 1)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_CHEY_HELPY_001 *T122ACHEY_HELPY  ---  ---AT122A
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1RESPONSE_REGULATORYPS50110 Response regulatory domain profile.CHEY_HELPY2-120  1A:2-120

(-) Exons   (0, 0)

(no "Exon" information available for 3H1F)

(-) 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:123
 aligned with CHEY_HELPY | P71403 from UniProtKB/Swiss-Prot  Length:124

    Alignment length:123
                                    10        20        30        40        50        60        70        80        90       100       110       120   
           CHEY_HELPY     1 MKLLVVDDSSTMRRIIKNTLSRLGYEDVLEAEHGVEAWEKLDANADTKVLITDWNMPEMNGLDLVKKVRSDSRFKEIPIIMITTEGGKAEVITALKAGVNNYIVKPFTPQVLKEKLEVVLGTN 123
               SCOP domains d3h1fa_ A: automated matches                                                                                                SCOP domains
               CATH domains 3h1fA00 A:1-123  [code=3.40.50.2300, no name defined]                                                                       CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeee..hhhhhhhhhhhhhhh....eeee.hhhhhhhhhhhh....eeee.......hhhhhhhhhhh........eeeee...hhhhhhhhhhhh..eeee...hhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------A- SAPs(SNPs)
                    PROSITE -RESPONSE_REGULATORY  PDB: A:2-120 UniProt: 2-120                                                                       --- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------- Transcript
                 3h1f A   1 MKLLVVDDSSTMRRIIKNTLSRLGYEDVLEAEHGVEAWEKLDANADTKVLITAWNMPEMNGLDLVKKVRSDSRFKEIPIIMITTEGGKAEVITALKAGVNNYIVKPFTPQVLKEKLEVVLGTN 123
                                    10        20        30        40        50        60        70        80        90       100       110       120   

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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/Biological Unit

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3H1F)

(-) Gene Ontology  (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CHEY_HELPY | P71403)
molecular function
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    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).
biological process
    GO:0097588    archaeal or bacterial-type flagellum-dependent cell motility    Cell motility due to movement of bacterial- or archaeal-type flagella.
    GO:0006935    chemotaxis    The directed movement of a motile cell or organism, or the directed growth of a cell guided by a specific chemical concentration gradient. Movement may be towards a higher concentration (positive chemotaxis) or towards a lower concentration (negative chemotaxis).
    GO:0000160    phosphorelay signal transduction system    A conserved series of molecular signals found in prokaryotes and eukaryotes; involves autophosphorylation of a histidine kinase and the transfer of the phosphate group to an aspartate that then acts as a phospho-donor to response regulator proteins.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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 Related Entries

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

UniProtKB/Swiss-Prot
        CHEY_HELPY | P714033gwg 3h1e 3h1g

(-) Related Entries Specified in the PDB File

3gwg 3h1e 3h1g