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(-) Description

Title :  CRYSTAL STRUCTURE OF ESCHERICHIA COLI HEAT SHOCK PROTEIN YEDU
 
Authors :  Y. Zhao, R. O. Fox
Date :  28 Feb 03  (Deposition) - 20 Jan 04  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Biol. Unit 2:  A  (1x)
Keywords :  Heat Shock Protein, Stress Response, Yedu, Hsp31, Chaperone, Protease (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  Y. Zhao, D. Liu, W. D. Kaluarachchi, H. D. Bellamy, M. A. White, R. O. Fox
The Crystal Structure Of Escherichia Coli Heat Shock Protei Yedu Reveals Three Potential Catalytic Active Sites
Protein Sci. V. 12 2303 2003
PubMed-ID: 14500888  |  Reference-DOI: 10.1110/PS.03121403

(-) Compounds

Molecule 1 - CHAPERONE PROTEIN HCHA
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET30-XA-LIC
    Expression System StrainBL21(DE3)PLYSS
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneHCHA OR B1967
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
    SynonymHSP31

 Structural Features

(-) Chains, Units

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

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1ZN1Ligand/IonZINC ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1ZN-1Ligand/IonZINC ION
Biological Unit 2 (0, 0)
No.NameCountTypeFull Name
1ZN-1Ligand/IonZINC ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:85 , GLU A:90 , HIS A:122BINDING SITE FOR RESIDUE ZN A 451

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1ONS)

(-) 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:278
 aligned with HCHA_ECOLI | P31658 from UniProtKB/Swiss-Prot  Length:283

    Alignment length:278
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274        
           HCHA_ECOLI     5 TSKNPQVDIAEDNAFFPSEYSLSQYTSPVSDLDGVDYPKPYRGKHKILVIAADERYLPTDNGKLFSTGNHPIETLLPLYHLHAAGFEFEVATISGLMTKFEYWAMPHKDEKVMPFFEQHKSLFRNPKKLADVVASLNADSEYAAIFVPGGHGALIGLPESQDVAAALQWAIKNDRFVISLCHGPAAFLALRHGDNPLNGYSICAFPDAADKQTPEIGYMPGHLTWYFGEELKKMGMNIINDDITGRVHKDRKLLTGDSPFAANALGKLAAQEMLAAYA 282
               SCOP domains d1onsa_ A: HSP31 (HchA; YedU)                                                                                                                                                                                                                                                          SCOP domains
               CATH domains 1onsA00 A:4-281  [code=3.40.50.880, no name defined]                                                                                                                                                                                                                                   CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------DJ-1_PfpI-1onsA01 A:107-277                                                                                                                                                ---- Pfam domains
         Sec.struct. author .....ee......eee.hhhhhhhhh...................eeeee.....eee.....eee...hhhhhhhhhhhhhhh...eeeee........hhhhh.....hhhhhhhhhhhhhhh.eehhhhhhh......eeeeee..hhhhhhhhhhhhhhhhhhhhhhhh..eeeee.hhhhhhhhhh.........ee...hhhhhhhhhhhh........hhhhhhhhh..ee........eeee..eeee.hhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1ons A   4 TSKNPQVDIAEDNAFFPSEYSLSQYTSPVSDLDGVDYPKPYRGKHKILVIAADERYLPTDNGKLFSTGNHPIETLLPLYHLHAAGFEFEVATISGLMTKFEYWAMPHKDEKVMPFFEQHKSLFRNPKKLADVVASLNADSEYAAIFVPGGHGALIGLPESQDVAAALQWAIKNDRFVISLCHGPAAFLALRHGDNPLNGYSICAFPDAADKQTPEIGYMPGHLTWYFGEELKKMGMNIINDDITGRVHKDRKLLTGDSPFAANALGKLAAQEMLAAYA 281
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273        

   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 Unit

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (1, 1)

Asymmetric Unit

(-) Gene Ontology  (16, 16)

Asymmetric Unit(hide GO term definitions)
Chain A   (HCHA_ECOLI | P31658)
molecular function
    GO:0019172    glyoxalase III activity    Catalysis of the reaction: methylglyoxal + H2O = D-lactate.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0016811    hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides    Catalysis of the hydrolysis of any non-peptide carbon-nitrogen bond in a linear amide.
    GO:0016829    lyase activity    Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
    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).
    GO:0016790    thiolester hydrolase activity    Catalysis of the reaction: RCO-SR' + H2O = RCOOH + HSR'. This reaction is the hydrolysis of a thiolester bond, an ester formed from a carboxylic acid and a thiol (i.e., RCO-SR'), such as that found in acetyl-coenzyme A.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0019249    lactate biosynthetic process    The chemical reactions and pathways resulting in the formation of lactate, the anion of lactic acid.
    GO:0019243    methylglyoxal catabolic process to D-lactate via S-lactoyl-glutathione    The chemical reactions and pathways resulting in the breakdown of methylglyoxal, CH3-CO-CHO, into D-lactate via the intermediate S-lactoyl-glutathione. Glutathione is used in the first step of the pathway and then regenerated in the second step.
    GO:0042026    protein refolding    The process carried out by a cell that restores the biological activity of an unfolded or misfolded protein, using helper proteins such as chaperones.
    GO:0030091    protein repair    The process of restoring a protein to its original state after damage by such things as oxidation or spontaneous decomposition of residues.
    GO:0010447    response to acidic pH    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 pH stimulus with pH < 7. pH is a measure of the acidity or basicity of an aqueous solution.
    GO:0051595    response to methylglyoxal    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 methylglyoxal stimulus. Methylglyoxal is a 2-oxoaldehyde derived from propanal.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

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 Related Entries

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

UniProtKB/Swiss-Prot
        HCHA_ECOLI | P316581izy 1izz 1n57 1pv2

(-) Related Entries Specified in the PDB File

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