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(-) Description

Title :  MONOCLINIC MIMIVIRUS CAPPING ENZYME TRIPHOSPHATASE.
 
Authors :  D. Benarroch, P. Smith, S. Shuman
Date :  16 Aug 07  (Deposition) - 01 Apr 08  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.90
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Mimivirus, Capping, Tunnel, Triphosphatase, Monoclinic, Hydrolase, Mrna Capping, Mrna Processing, Multifunctional Enzyme, Nucleotidyltransferase, S-Adenosyl-L-Methionine, Transferase, Viral Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  D. Benarroch, P. Smith, S. Shuman
Characterization Of A Trifunctional Mimivirus Mrna Capping Enzyme And Crystal Structure Of The Rna Triphosphatase Domain.
Structure V. 16 501 2008
PubMed-ID: 18400173  |  Reference-DOI: 10.1016/J.STR.2008.01.009
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROBABLE MRNA-CAPPING ENZYME
    ChainsA, B
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainBL21(DE3)CODON+
    Expression System Taxid562
    Expression System Vector TypePLASMID
    Organism ScientificMIMIVIRUS
    Organism Taxid315393

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)A 
Biological Unit 2 (1x) B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 2QZE)

(-) Sites  (0, 0)

(no "Site" information available for 2QZE)

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2QZE)

(-) Exons   (0, 0)

(no "Exon" information available for 2QZE)

(-) 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:220
 aligned with MCE_MIMIV | Q5UQX1 from UniProtKB/Swiss-Prot  Length:1170

    Alignment length:224
                                    22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232    
            MCE_MIMIV    13 TIFSENEYNEIVEMLRDYSNGDNLEFEVSFKNINYPNFMRITEHYINITPENKIESNNYLDISLIFPDKNVYRVSLFNQEQIGEFITKFSKASSNDISRYIVSLDPSDDIEIVYKNRGSGKLIGIDNWAITIKSTEEIPLVAGKSKISKPKITGSERIMYRYKTRYSFTINKNSRIDITDVKSSPIIWKLMTVPSNYELELELINKIDINTLESELLNVFMIIQ 236
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhhhh-.....eeeeeeehhhhhhhhhhhhhhhh....eeeeeeeeeeee.....eeeeee.hhhhhhhhhhhhh..hhhhhhhhhhhh.....eeeeee..---.eee.....eeee...eeee................eeeeeeeeeeeee....eeeeeeeeeee....hhhhh..eeeeeeee....hhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2qze A  13 TIFSENEYNEIVEMLRDYSN-DNLEFEVSFKNINYPNFMRITEHYINITPENKIESNNYLDISLIFPDKNVYRVSLFNQEQIGEFITKFSKASSNDISRYIVSLDPSDDIEIVYKNR---KLIGIDNWAITIKSTEEIPLVAGKSKISKPKITGSERIMYRYKTRYSFTINKNSRIDITDVKSSPIIWKLMTVPSNYELELELINKIDINTLESELLNVFMIIQ 236
                                    22        32 |      42        52        62        72        82        92       102       112       122      |  -|      142       152       162       172       182       192       202       212       222       232    
                                              32 |                                                                                            129 133                                                                                                       
                                                34                                                                                                                                                                                                          

Chain B from PDB  Type:PROTEIN  Length:222
 aligned with MCE_MIMIV | Q5UQX1 from UniProtKB/Swiss-Prot  Length:1170

    Alignment length:225
                                    22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232     
            MCE_MIMIV    13 TIFSENEYNEIVEMLRDYSNGDNLEFEVSFKNINYPNFMRITEHYINITPENKIESNNYLDISLIFPDKNVYRVSLFNQEQIGEFITKFSKASSNDISRYIVSLDPSDDIEIVYKNRGSGKLIGIDNWAITIKSTEEIPLVAGKSKISKPKITGSERIMYRYKTRYSFTINKNSRIDITDVKSSPIIWKLMTVPSNYELELELINKIDINTLESELLNVFMIIQD 237
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) mRNA_triPase-2qzeB01 B:13-215                                                                                                                                                                              ---------------------- Pfam domains (1)
           Pfam domains (2) mRNA_triPase-2qzeB02 B:13-215                                                                                                                                                                              ---------------------- Pfam domains (2)
         Sec.struct. author ...hhhhhhhhhhhhhhhhh......eeeeeeehhhhhhhhhhhhhhhhhhh.eeeeeeeeeeee.....eeeeee.hhhhhhhhhhhh...hhhhhhhhhhh......eeeeeeeeeeeeeeee....eeeeeeeeeee...---..........eeeeeeeeeeeee....eeeeeeeeeee..hhhhhh...eeeeeeee....hhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2qze B  13 TIFSENEYNEIVEMLRDYSNGDNLEFEVSFKNINYPNFMRITEHYINITPENKIESNNYLDISLIFPDKNVYRVSLFNQEQIGEFITKFSKASSNDISRYIVSLDPSDDIEIVYKNRGSGKLIGIDNWAITIKSTEEIPLVAG---ISKPKITGSERIMYRYKTRYSFTINKNSRIDITDVKSSPIIWKLMTVPSNYELELELINKIDINTLESELLNVFMIIQD 237
                                    22        32        42        52        62        72        82        92       102       112       122       132       142       152  |   |162       172       182       192       202       212       222       232     
                                                                                                                                                                        155 159                                                                              

   Legend:   → Mismatch (orange background)
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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  (0, 0)

(no "SCOP Domain" information available for 2QZE)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2QZE)

(-) Pfam Domains  (1, 2)

Asymmetric Unit
(-)
Clan: CYTH (6)

(-) Gene Ontology  (18, 18)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (MCE_MIMIV | Q5UQX1)
molecular function
    GO:0005525    GTP binding    Interacting selectively and non-covalently with GTP, guanosine triphosphate.
    GO:0003723    RNA binding    Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    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:0004482    mRNA (guanine-N7-)-methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + G(5')pppR-RNA = S-adenosyl-L-homocysteine + m7G(5')pppR-RNA. m7G(5')pppR-RNA is mRNA containing an N7-methylguanine cap; R may be guanosine or adenosine.
    GO:0004484    mRNA guanylyltransferase activity    Catalysis of the reaction: GTP + (5')pp-Pur-mRNA = diphosphate + G(5')ppp-Pur-mRNA; G(5')ppp-Pur-mRNA is mRNA containing a guanosine residue linked 5' through three phosphates to the 5' position of the terminal residue.
    GO:0008168    methyltransferase activity    Catalysis of the transfer of a methyl group to an acceptor molecule.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
    GO:0016779    nucleotidyltransferase activity    Catalysis of the transfer of a nucleotidyl group to a reactant.
    GO:0004651    polynucleotide 5'-phosphatase activity    Catalysis of the reaction: 5'-phosphopolynucleotide + H2O = polynucleotide + phosphate.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
biological process
    GO:0006370    7-methylguanosine mRNA capping    Addition of the 7-methylguanosine cap to the 5' end of a nascent messenger RNA transcript.
    GO:0036265    RNA (guanine-N7)-methylation    The addition of a methyl group to the N7 atom in the base portion of a guanine nucleotide residue in an RNA molecule.
    GO:0006397    mRNA processing    Any process involved in the conversion of a primary mRNA transcript into one or more mature mRNA(s) prior to translation into polypeptide.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
    GO:0032259    methylation    The process in which a methyl group is covalently attached to a molecule.
    GO:0098507    polynucleotide 5' dephosphorylation    The process of removing one or more phosphate groups from the 5' end of a polynucleotide.
cellular component
    GO:0019012    virion    The complete fully infectious extracellular virus particle.

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 Related Entries

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

UniProtKB/Swiss-Prot
        MCE_MIMIV | Q5UQX12qy2 3bgy

(-) Related Entries Specified in the PDB File

2qy2 HIGHER RESOLUTION HEXAGONAL APO-FORM, IDENTICAL PROTEIN CRYSTALLIZED UNDER NEAR IDENTICAL CONDITIONS.
3bgy