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(-) Description

Authors :  G. Schluckebier, P. Zhong, K. D. Stewart, T. J. Kavanaugh, C. Abad-Zapa
Date :  28 Mar 99  (Deposition) - 29 Mar 00  (Release) - 08 Feb 17  (Revision)
Resolution :  2.80
Chains :  Asym./Biol. Unit :  A
Keywords :  Binary Complex With Adenosyl-Ornithine, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  G. Schluckebier, P. Zhong, K. D. Stewart, T. J. Kavanaugh, C. Abad-Zapatero
The 2. 2 A Structure Of The Rrna Methyltransferase Ermc' And Its Complexes With Cofactor And Cofactor Analogs: Implications For The Reaction Mechanism.
J. Mol. Biol. V. 289 277 1999
PubMed-ID: 10366505  |  Reference-DOI: 10.1006/JMBI.1999.2788
(for further references see the PDB file header)

(-) Compounds

    EC Number2.1.1.48
    Expression SystemESCHERICHIA COLI
    Expression System StrainBD1109
    Expression System Taxid562
    Expression System VectorPTERM31
    Expression System Vector TypePLASMID
    Organism ScientificBACILLUS SUBTILIS
    Organism Taxid1423

 Structural Features

(-) Chains, Units

Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
1AC1SOFTWAREGLN A:10 , ASN A:11 , PHE A:12 , ILE A:13 , GLU A:36 , GLY A:38 , SER A:39 , GLY A:40 , GLU A:59 , ILE A:60 , LEU A:64 , ASP A:84 , ILE A:85 , ASN A:101 , ILE A:106BINDING SITE FOR RESIDUE SFG A 245

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
1His A:164 -Pro A:165

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
1RRNA_A_DIMETHPS01131 Ribosomal RNA adenine dimethylases signature.ERM_BACIU34-61  1A:34-61

(-) Exons   (0, 0)

(no "Exon" information available for 1QAQ)

(-) 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:236
 aligned with ERM_BACIU | P13956 from UniProtKB/Swiss-Prot  Length:244

    Alignment length:236
                                    18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238      
               SCOP domains d1qaqa_ A: rRNA adenine dimethylase                                                                                                                                                                                                          SCOP domains
               CATH domains -1qaqA01 A:10-134,A:149-180 Vaccinia Virus protein VP39                                                                       1qaqA02       1qaqA01 A:10-134,A:149-180      1qaqA02 A:135-148,A:181-244  [code=, no name defined]  CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......hhhhhhhhhh........eeeee....hhhhhhhhhhh.eeeee..hhhhhhhhhhhh.....eeee..hhhhh.......eeeee.....hhhhhhhhhhhh....eeeeeeehhhhhhhh...hhhhhhhh..eeeeeeeeehhhhh.......eeeeeeee........hhhhhhhhhhhhhh.hhhhh.hhhhhhhhhhhhh.......hhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------RRNA_A_DIMETH  PDB: A:34-61 --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                                    18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238      

   Legend:   → Mismatch (orange background)
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    → 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  (2, 2)

Asymmetric/Biological Unit
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (10, 10)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (ERM_BACIU | P13956)
molecular function
    GO:0052910    23S rRNA (adenine(2085)-N(6))-dimethyltransferase activity    Catalysis of the reaction: 2 S-adenosyl-L-methionine + adenine(2085) in 23S rRNA = 2 S-adenosyl-L-homocysteine + N(6)-dimethyladenine(2085) in 23S rRNA.
    GO:0003723    RNA binding    Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
    GO:0008168    methyltransferase activity    Catalysis of the transfer of a methyl group to an acceptor molecule.
    GO:0000179    rRNA (adenine-N6,N6-)-dimethyltransferase activity    Catalysis of the dimethylation two adjacent A residues in the loop closing the 3'-terminal stem of the 18S rRNA, using S-adenosyl-L-methionine as a methyl donor.
    GO:0008649    rRNA methyltransferase activity    Catalysis of the transfer of a methyl group from S-adenosyl-L-methionine to a nucleoside residue in an rRNA molecule.
    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:0032259    methylation    The process in which a methyl group is covalently attached to a molecule.
    GO:0031167    rRNA methylation    The posttranscriptional addition of methyl groups to specific residues in an rRNA molecule.
    GO:0000154    rRNA modification    The covalent alteration of one or more nucleotides within an rRNA molecule to produce an rRNA molecule with a sequence that differs from that coded genetically.
    GO:0046677    response to antibiotic    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 an antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.


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 Related Entries

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

        ERM_BACIU | P139561qam 1qan 1qao 2erc

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1QAQ)