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(-) Description

Title :  CRYSTAL STRUCTURE OF TN501 MERA
 
Authors :  A. Dong, R. Ledwidge, B. Patel, D. Fiedler, M. Falkowski, J. Zelikova, A. O. Summers, E. F. Pai, S. M. Miller
Date :  07 Jun 05  (Deposition) - 05 Jul 05  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Mercuric Ion Reductase, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  R. Ledwidge, B. Patel, A. Dong, D. Fiedler, M. Falkowski, J. Zelikova, A. O. Summers, E. F. Pai, S. M. Miller
Nmera, The Metal Binding Domain Of Mercuric Ion Reductase, Removes Hg(2+) From Proteins, Delivers It To The Catalytic Core, And Protects Cells Under Glutathione-Depleted Conditions
Biochemistry V. 44 11402 2005
PubMed-ID: 16114877  |  Reference-DOI: 10.1021/BI050519D

(-) Compounds

Molecule 1 - MERCURIC REDUCTASE
    Chains: A
    EC Number: 1.16.1.1
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PJOE114
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Gene: MERA
    Organism Scientific: PSEUDOMONAS AERUGINOSA
    Organism Taxid: 287
    Synonym: HG(II) REDUCTASE, MERA

 Structural Features

(-) Chains, Units

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

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1FAD1Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
1FAD2Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREILE A:10 , GLY A:11 , GLY A:13 , GLY A:14 , ALA A:15 , ILE A:33 , GLU A:34 , ARG A:35 , GLY A:40 , THR A:41 , CYS A:42 , GLY A:46 , CYS A:47 , SER A:50 , LYS A:51 , GLY A:115 , GLU A:116 , ALA A:117 , ALA A:145 , THR A:146 , GLY A:147 , ARG A:269 , SER A:275 , LEU A:276 , GLY A:308 , ASP A:309 , GLN A:315 , PHE A:316 , VAL A:317 , TYR A:318 , PHE A:348 , HOH A:1001 , HOH A:1005 , HOH A:1006 , HOH A:1032 , HOH A:1048 , HOH A:1072 , HOH A:1133 , HOH A:1173BINDING SITE FOR RESIDUE FAD A 666

(-) SS Bonds  (1, 1)

Asymmetric Unit
No.Residues
1A:42 -A:47

(-) Cis Peptide Bonds  (1, 1)

Asymmetric Unit
No.Residues
1Asp A:350 -Pro A:351

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1ZX9)

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PYRIDINE_REDOX_1PS00076 Pyridine nucleotide-disulphide oxidoreductases class-I active site.MERA_PSEAI133-143  1A:39-49
Biological Unit 1 (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PYRIDINE_REDOX_1PS00076 Pyridine nucleotide-disulphide oxidoreductases class-I active site.MERA_PSEAI133-143  2A:39-49

(-) Exons   (0, 0)

(no "Exon" information available for 1ZX9)

(-) 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:453
 aligned with MERA_PSEAI | P00392 from UniProtKB/Swiss-Prot  Length:561

    Alignment length:453
                                   107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547   
           MERA_PSEAI    98 PVQVAVIGSGGAAMAAALKAVEQGAQVTLIERGTIGGTCVNVGCVPSKIMIRAAHIAHLRRESPFDGGIAATVPTIDRSKLLAQQQARVDELRHAKYEGILGGNPAITVVHGEARFKDDQSLTVRLNEGGERVVMFDRCLVATGASPAVPPIPGLKESPYWTSTEALASDTIPERLAVIGSSVVALELAQAFARLGSKVTVLARNTLFFREDPAIGEAVTAAFRAEGIEVLEHTQASQVAHMDGEFVLTTTHGELRADKLLVATGRTPNTRSLALDAAGVTVNAQGAIVIDQGMRTSNPNIYAAGDCTDQPQFVYVAAAAGTRAAINMTGGDAALDLTAMPAVVFTDPQVATVGYSEAEAHHDGIETDSRTLTLDNVPRALANFDTRGFIKLVIEEGSHRLIGVQAVAPEAGELIQTAALAIRNRMTVQELADQLFPYLTMVEGLKLAAQTFN 550
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeee..hhhhhhhhhhhhhh..eeeeee....hhhhhhhhhhhhhhhhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhhhhhhhhh....eeeeeeeeeeee..eeeeee....eeeee..eeee...eee..............hhhhhhh......eeeee..hhhhhhhhhhhhhh..eeeee.........hhhhhhhhhhhhhhh..eee....eeeeeee..eeeeee..eeeee.eeee...eee.hhhhhhhhhh.....................eee.hhhh....hhhhhhhhhhhhhhhhh...........eeee....eeeeee.hhhhhhhh...eeeeeee...hhhhhhh.....eeeeeee.....eeeeeeee.hhhhhhhhhhhhhhh..hhhhhhhh.......hhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------PYRIDINE_RE----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1zx9 A   4 PVQVAVIGSGGAAMAAALKAVEQGAQVTLIERGTIGGTCVNVGCVPSKIMIRAAHIAHLRRESPFDGGIAATVPTIDRSKLLAQQQARVDELRHAKYEGILGGNPAITVVHGEARFKDDQSLTVRLNEGGERVVMFDRCLVATGASPAVPPIPGLKESPYWTSTEALASDTIPERLAVIGSSVVALELAQAFARLGSKVTVLARNTLFFREDPAIGEAVTAAFRAEGIEVLEHTQASQVAHMDGEFVLTTTHGELRADKLLVATGRTPNTRSLALDAAGVTVNAQGAIVIDQGMRTSNPNIYAAGDCTDQPQFVYVAAAAGTRAAINMTGGDAALDLTAMPAVVFTDPQVATVGYSEAEAHHDGIETDSRTLTLDNVPRALANFDTRGFIKLVIEEGSHRLIGVQAVAPEAGELIQTAALAIRNRMTVQELADQLFPYLTMVEGLKLAAQTFN 456
                                    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       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453
   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 1ZX9)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1ZX9)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1ZX9)

(-) Gene Ontology  (13, 13)

Asymmetric Unit(hide GO term definitions)
Chain A   (MERA_PSEAI | P00392)
molecular function
    GO:0050661    NADP binding    Interacting selectively and non-covalently with nicotinamide-adenine dinucleotide phosphate, a coenzyme involved in many redox and biosynthetic reactions; binding may be to either the oxidized form, NADP+, or the reduced form, NADPH.
    GO:0050660    flavin adenine dinucleotide binding    Interacting selectively and non-covalently with FAD, flavin-adenine dinucleotide, the coenzyme or the prosthetic group of various flavoprotein oxidoreductase enzymes, in either the oxidized form, FAD, or the reduced form, FADH2.
    GO:0016152    mercury (II) reductase activity    Catalysis of the reaction: H(+) + Hg + NADP(+) = Hg(2+) + NADPH.
    GO:0045340    mercury ion binding    Interacting selectively and non-covalently with mercury (Hg) ions.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    GO:0016668    oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor    Catalysis of an oxidation-reduction (redox) reaction in which a sulfur-containing group acts as a hydrogen or electron donor and reduces NAD or NADP.
biological process
    GO:0045454    cell redox homeostasis    Any process that maintains the redox environment of a cell or compartment within a cell.
    GO:0050787    detoxification of mercury ion    Any process that reduce or remove the toxicity of mercuric ion. These include transport of mercury away from sensitive areas and to compartments or complexes whose purpose is sequestration of mercury ion and/or reduction of mercury ion (Hg[II]) to metallic mercury (Hg[0]).
    GO:0030001    metal ion transport    The directed movement of metal ions, any metal ion with an electric charge, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0046689    response to mercury ion    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 mercury ion stimulus.
cellular component
    GO:0005623    cell    The basic structural and functional unit of all organisms. Includes the plasma membrane and any external encapsulating structures such as the cell wall and cell envelope.

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  1zx9
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  1.16.1.1
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 Related Entries

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

UniProtKB/Swiss-Prot
        MERA_PSEAI | P00392: 1zk7 2kt2 2kt3 4k7z 4k8d

(-) Related Entries Specified in the PDB File

1ger GLUTATHIONE REDUCTASE E.COLI
3grs GLUTATHIONE REDUCTASE HUMAN