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(-) Description

Title :  CRYSTAL STRUCTURE OF SAM-DEPENDENT O-METHYLTRANSFERASE (TM0748) FROM THERMOTOGA MARITIMA AT 1.65 A RESOLUTION
 
Authors :  Joint Center For Structural Genomics (Jcsg)
Date :  13 Aug 03  (Deposition) - 19 Aug 03  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.65
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (4x)
Keywords :  Tm0748, Sam-Dependent O-Methyltransferase, Structural Genomics, Jcsg, Psi, Protein Structure Initiative, Joint Center For Structural Genomics, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Joint Center For Structural Genomics (Jcsg)
Crystal Structure Of Sam-Dependent O-Methyltransferase (Tm0748) From Thermotoga Maritima At 1. 65 A Resolution
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - SAM-DEPENDENT O-METHYLTRANSFERASE
    Chains: A
    EC Number: 2.1.1.-
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: TM0748
    Organism Scientific: THERMOTOGA MARITIMA
    Organism Taxid: 2336

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (4x): A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1CL1Ligand/IonCHLORIDE ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1CL-1Ligand/IonCHLORIDE ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREVAL A:84 , ALA A:113 , MET A:114 , HOH A:558BINDING SITE FOR RESIDUE CL A 266

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1O54)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric Unit
No.Residues
1Thr A:107 -Gly A:108

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1O54)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1O54)

(-) Exons   (0, 0)

(no "Exon" information available for 1O54)

(-) 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:265
 aligned with Q9WZK7_THEMA | Q9WZK7 from UniProtKB/TrEMBL  Length:265

    Alignment length:266
                               1                                                                                                                                                                                                                                                                      
                               |     7        17        27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257      
         Q9WZK7_THEMA     - ---MGKVADTLKPGDRVLLSFEDESEFLVDLEKDKKLHTHLGIIDLNEVFEKGPGEIIRTSAGKKGYILIPSLIDEIMNMKRRTQIVYPKDSSFIAMMLDVKEGDRIIDTGVGSGAMCAVLARAVGSSGKVFAYEKREEFAKLAESNLTKWGLIERVTIKVRDISEGFDEKDVDALFLDVPDPWNYIDKCWEALKGGGRFATVCPTTNQVQETLKKLQELPFIRIEVWESLFRPYKPVPERLRPVDRMVAHTAYMIFATKVCRREE 263
               SCOP domains d1o54a_ A: Hypothetical protein TM0748                                                                                                                                                                                                                                     SCOP domains
               CATH domains 1o54A01 A:-2-69  [code=3.10.330.20, no name defined]                    1o54A02 A :70-263 Vaccinia Virus protein VP39                                                                                                                                                      CATH domains
               Pfam domains ----GCD14-1o54A01 A:2-240                                                                                                                                                                                                                          ----------------------- Pfam domains
         Sec.struct. author .....hhhhh.....eeeeee....eeeee.....eeee..eeeehhhhh......eee.....eeeee..hhhhhhhh..-.....hhhhhhhhhhhh......eeeee....hhhhhhhhhhhh...eeeee..hhhhhhhhhhhhhhh.hhh.eeee..hhhhh.....eeeeee...hhhhhhhhhhhheeeeeeeeeee.hhhhhhhhhhhhhhh.eeeeeee......ee......ee.........eeeeeee...... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1o54 A  -2 HHHVGKVADTLKPGDRVLLSFEDESEFLVDLEKDKKLHTHLGIIDLNEVFEKGPGEIIRTSAGKKGYILIPSLIDEIMNMK-RTQIVYPKDSSFIAMMLDVKEGDRIIDTGVGSGAMCAVLARAVGSSGKVFAYEKREEFAKLAESNLTKWGLIERVTIKVRDISEGFDEKDVDALFLDVPDPWNYIDKCWEALKGGGRFATVCPTTNQVQETLKKLQELPFIRIEVWESLFRPYKPVPERLRPVDRMVAHTAYMIFATKVCRREE 263
                                     7        17        27        37        47        57        67        77| |     87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257      
                                                                                                           78 |                                                                                                                                                                                       
                                                                                                             80
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  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
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (2, 2)

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

(-) Pfam Domains  (1, 1)

Asymmetric Unit
(-)
Clan: NADP_Rossmann (1239)

(-) Gene Ontology  (3, 3)

Asymmetric Unit(hide GO term definitions)
Chain A   (Q9WZK7_THEMA | Q9WZK7)
molecular function
    GO:0016429    tRNA (adenine-N1-)-methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + tRNA = S-adenosyl-L-homocysteine + tRNA containing N1-methyladenine.
biological process
    GO:0030488    tRNA methylation    The posttranscriptional addition of methyl groups to specific residues in a tRNA molecule.
cellular component
    GO:0031515    tRNA (m1A) methyltransferase complex    A protein complex involved in the catalysis of the formation of the modified nucleotide 1-methyladenosine (m1A) in tRNA. In yeast, it is a heterotetramer of two subunits, Gcd10p and Gcd14p, while in bacteria and archaea it is a homotetramer.

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