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(-) Description

Title :  STRUCTURE OF TRM8-TRM82, THE YEAST TRNA M7G METHYLATION COMPLEX
 
Authors :  N. Leulliot, M. Chaillet, D. Durand, N. Ulryck, K. Blondeau, H. Van Tilbeurgh
Date :  11 Oct 07  (Deposition) - 18 Dec 07  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.40
Chains :  Asym. Unit :  B,D,E,F
Biol. Unit 1:  B,D,E,F  (1x)
Biol. Unit 2:  B,E  (1x)
Biol. Unit 3:  D,F  (1x)
Keywords :  S-Adenosyl-L-Methionine, Trna Processing, Phosphorylation, Methyltransferase, M7G, Trna, Spout Mt, Wd Repeat, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  N. Leulliot, M. Chaillet, D. Durand, N. Ulryck, K. Blondeau, H. Van Tilbeurgh
Structure Of The Yeast Trna M7G Methylation Complex.
Structure V. 16 52 2008
PubMed-ID: 18184583  |  Reference-DOI: 10.1016/J.STR.2007.10.025

(-) Compounds

Molecule 1 - TRNA (GUANINE-N(7)-)-METHYLTRANSFERASE- ASSOCIATED WD REPEAT PROTEIN TRM82
    ChainsB, D
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainGOLD (DE3)
    Expression System Taxid562
    Expression System VectorPET9
    Organism CommonBAKER'S YEAST
    Organism ScientificSACCHAROMYCES CEREVISIAE
    Organism Taxid4932
 
Molecule 2 - TRNA (GUANINE-N(7)-)-METHYLTRANSFERASE
    ChainsE, F
    EC Number2.1.1.33
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainGOLD (DE3)
    Expression System Taxid562
    Expression System VectorPET9
    Fragment46-END, RESIDUES 39-286
    Organism CommonBAKER'S YEAST
    Organism ScientificSACCHAROMYCES CEREVISIAE
    Organism Taxid4932
    Other Details46 N-TERMNIAL TRUNCATION
    SynonymTRM8, TRNA(M7G46)-METHYLTRANSFERASE

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit BDEF
Biological Unit 1 (1x)BDEF
Biological Unit 2 (1x)B E 
Biological Unit 3 (1x) D F

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric Unit (1, 2)
No.NameCountTypeFull Name
1PO42Ligand/IonPHOSPHATE ION
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
1PO42Ligand/IonPHOSPHATE ION
Biological Unit 2 (1, 1)
No.NameCountTypeFull Name
1PO41Ligand/IonPHOSPHATE ION
Biological Unit 3 (1, 1)
No.NameCountTypeFull Name
1PO41Ligand/IonPHOSPHATE ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS E:225 , ARG E:240BINDING SITE FOR RESIDUE PO4 E1287
2AC2SOFTWAREHIS F:225 , ARG F:240 , HOH F:2049 , HOH F:2050 , HOH F:2051BINDING SITE FOR RESIDUE PO4 F1287

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (4, 4)

Asymmetric Unit
No.Residues
1Ser B:34 -Pro B:35
2Tyr B:227 -Pro B:228
3Ser D:34 -Pro D:35
4Tyr D:227 -Pro D:228

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (2, 4)

Asymmetric Unit (2, 4)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1YDL201W1YDL201W.1IV:99562-100422861TRMB_YEAST1-2862862E:66-286 (gaps)
F:66-286 (gaps)
221
221

2.1YDR165W1YDR165W.1IV:784869-7862031335TRM82_YEAST1-4444442B:2-436 (gaps)
D:2-436 (gaps)
435
435

(-) 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 B from PDB  Type:PROTEIN  Length:374
 aligned with TRM82_YEAST | Q03774 from UniProtKB/Swiss-Prot  Length:444

    Alignment length:435
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431     
          TRM82_YEAST     2 SVIHPLQNLLTSRDGSLVFAIIKNCILSFKYQSPNHWEFAGKWSDDFDKIQESRNTTAKEQQGQSSENENENKKLKSNKGDSIKRTAAKVPSPGLGAPPIYSYIRNLRLTSDESRLIACADSDKSLLVFDVDKTSKNVLKLRKRFCFSKRPNAISIAEDDTTVIIADKFGDVYSIDINSIPEEKFTQEPILGHVSMLTDVHLIKDSDGHQFIITSDRDEHIKISHYPQCFIVDKWLFGHKHFVSSICCGKDYLLLSAGGDDKIFAWDWKTGKNLSTFDYNSLIKPYLNDQHLAPPRFQNENNDIIEFAVSKIIKSKNLPFVAFFVEATKCIIILEMSEKQKGDLALKQIITFPYNVISLSAHNDEFQVTLDNKESSGVQKNFAKFIEYNLNENSFVVNNEKSNEFDSAIIQSVQGDSNLVTKKEEIYPLYNVSSL 436
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .ee....eeee.....eeeeee..eeeeeeee...eeeeeeeee...---------------------------------------------------.....eeeeee.....eeeeee....eeeeeee.......eeeeeeee....eeeeee.....eeeeee...eeeeee..............ee....eeeeeeee.....eeeeeee....eeeeee.....eeee.......eeeeee....eeeeee...eeeeee.....eeeeeehhhhhhhhh......----------.....eeeeee.....eeeeee....eeeeeee.......eeeeeeee....eeeeeee..eeeeee............eeeeeee....eeeehhhhhhhhhhhhhhhhh.....eehhhhh......... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
               Transcript 2 Exon 2.1  PDB: B:2-436 (gaps) UniProt: 1-444 [INCOMPLETE]                                                                                                                                                                                                                                                                                                                                                                                           Transcript 2
                 2vdu B   2 SVIHPLQNLLTSRDGSLVFAIIKNCILSFKYQSPNHWEFAGKWSDDF---------------------------------------------------PIYSYIRNLRLTSDESRLIACADSDKSLLVFDVDKTSKNVLKLRKRFCFSKRPNAISIAEDDTTVIIADKFGDVYSIDINSIPEEKFTQEPILGHVSMLTDVHLIKDSDGHQFIITSDRDEHIKISHYPQCFIVDKWLFGHKHFVSSICCGKDYLLLSAGGDDKIFAWDWKTGKNLSTFDYNSLIKPYLNDQHLA----------IIEFAVSKIIKSKNLPFVAFFVEATKCIIILEMSEKQKGDLALKQIITFPYNVISLSAHNDEFQVTLDNKESSGVQKNFAKFIEYNLNENSFVVNNEKSNEFDSAIIQSVQGDSNLVTKKEEIYPLYNVSSL 436
                                    11        21        31        41      |  -         -         -         -         -       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291  |      -   |   311       321       331       341       351       361       371       381       391       401       411       421       431     
                                                                         48                                                 100                                                                                                                                                                                               294        305                                                                                                                                   

Chain D from PDB  Type:PROTEIN  Length:376
 aligned with TRM82_YEAST | Q03774 from UniProtKB/Swiss-Prot  Length:444

    Alignment length:435
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431     
          TRM82_YEAST     2 SVIHPLQNLLTSRDGSLVFAIIKNCILSFKYQSPNHWEFAGKWSDDFDKIQESRNTTAKEQQGQSSENENENKKLKSNKGDSIKRTAAKVPSPGLGAPPIYSYIRNLRLTSDESRLIACADSDKSLLVFDVDKTSKNVLKLRKRFCFSKRPNAISIAEDDTTVIIADKFGDVYSIDINSIPEEKFTQEPILGHVSMLTDVHLIKDSDGHQFIITSDRDEHIKISHYPQCFIVDKWLFGHKHFVSSICCGKDYLLLSAGGDDKIFAWDWKTGKNLSTFDYNSLIKPYLNDQHLAPPRFQNENNDIIEFAVSKIIKSKNLPFVAFFVEATKCIIILEMSEKQKGDLALKQIITFPYNVISLSAHNDEFQVTLDNKESSGVQKNFAKFIEYNLNENSFVVNNEKSNEFDSAIIQSVQGDSNLVTKKEEIYPLYNVSSL 436
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------WD40-2vduD01 D:234-268             ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains (1)
           Pfam domains (2) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------WD40-2vduD02 D:234-268             ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains (2)
         Sec.struct. author .ee....eeee.....eeeeee..eeeeeeee...eeeeeeeee...---------------------------------------------------.....eeeeee.....eeeeee....eeeeeee.......eeeeeeee....eeeeee.....eeeeee...eeeeee..............ee....eeeeeeee.....eeeeeee....eeeeee.....eeee.......eeeeee....eeeeee...eeeeee....eeeeeeehhhhhhhhh........--------.....eeeeee.....eeeeee....eeeeeee.......eeeeeeee....eeeeeee..eeeeee............eeeeeee....eeeehhhhhhhhhhhhhhhhh.....eehhhhh......... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
               Transcript 2 Exon 2.1  PDB: D:2-436 (gaps) UniProt: 1-444 [INCOMPLETE]                                                                                                                                                                                                                                                                                                                                                                                           Transcript 2
                 2vdu D   2 SVIHPLQNLLTSRDGSLVFAIIKNCILSFKYQSPNHWEFAGKWSDDF---------------------------------------------------PIYSYIRNLRLTSDESRLIACADSDKSLLVFDVDKTSKNVLKLRKRFCFSKRPNAISIAEDDTTVIIADKFGDVYSIDINSIPEEKFTQEPILGHVSMLTDVHLIKDSDGHQFIITSDRDEHIKISHYPQCFIVDKWLFGHKHFVSSICCGKDYLLLSAGGDDKIFAWDWKTGKNLSTFDYNSLIKPYLNDQHLAPP--------IIEFAVSKIIKSKNLPFVAFFVEATKCIIILEMSEKQKGDLALKQIITFPYNVISLSAHNDEFQVTLDNKESSGVQKNFAKFIEYNLNENSFVVNNEKSNEFDSAIIQSVQGDSNLVTKKEEIYPLYNVSSL 436
                                    11        21        31        41      |  -         -         -         -         -       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291    |    -   |   311       321       331       341       351       361       371       381       391       401       411       421       431     
                                                                         48                                                 100                                                                                                                                                                                                 296      305                                                                                                                                   

Chain E from PDB  Type:PROTEIN  Length:201
 aligned with TRMB_YEAST | Q12009 from UniProtKB/Swiss-Prot  Length:286

    Alignment length:221
                                    75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285 
           TRMB_YEAST    66 QLEYPVSPQDMDWSKLYPYYKNAENGQMTKKVTIADIGCGFGGLMIDLSPAFPEDLILGMEIRVQVTNYVEDRIIALRNNTASKHGFQNINVLRGNAMKFLPNFFEKGQLSKMFFCFPDPHFKQRKHKARIITNTLLSEYAYVLKEGGVVYTITDVKDLHEWMVKHLEEHPLFERLSKEWEENDECVKIMRNATEEGKKVERKKGDKFVACFTRLPTPAIL 286
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......hhhhh.....hhh.ee....ee...eeeeee....hhhhhhhhhhh...eeeeee.hhhhhhhhhhhhhhhhhh.........eeeee.hhhhhhhhhh....eeeeeee....---------.....hhhhhhhhheeeeeeeeeee.hhhhhhhhhhhhhhh..eee.hhhhhhhhhhhhhhhh..-----------..eeeeeee....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
               Transcript 1 Exon 1.1  PDB: E:66-286 (gaps) UniProt: 1-286 [INCOMPLETE]                                                                                                                                                                    Transcript 1
                 2vdu E  66 QLEYPVSPQDMDWSKLYPYYKNAENGQMTKKVTIADIGCGFGGLMIDLSPAFPEDLILGMEIRVQVTNYVEDRIIALRNNTASKHGFQNINVLRGNAMKFLPNFFEKGQLSKMFFCFPDP---------RIITNTLLSEYAYVLKEGGVVYTITDVKDLHEWMVKHLEEHPLFERLSKEWEENDECVKIMRNAT-----------DKFVACFTRLPTPAIL 286
                                    75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255   |     -     | 275       285 
                                                                                                                                                 185       195                                                             259         271               

Chain F from PDB  Type:PROTEIN  Length:201
 aligned with TRMB_YEAST | Q12009 from UniProtKB/Swiss-Prot  Length:286

    Alignment length:221
                                    75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285 
           TRMB_YEAST    66 QLEYPVSPQDMDWSKLYPYYKNAENGQMTKKVTIADIGCGFGGLMIDLSPAFPEDLILGMEIRVQVTNYVEDRIIALRNNTASKHGFQNINVLRGNAMKFLPNFFEKGQLSKMFFCFPDPHFKQRKHKARIITNTLLSEYAYVLKEGGVVYTITDVKDLHEWMVKHLEEHPLFERLSKEWEENDECVKIMRNATEEGKKVERKKGDKFVACFTRLPTPAIL 286
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) Methyltransf_4-2vduF01 F:66-280                                                                                                                                                                                        ------ Pfam domains (1)
           Pfam domains (2) Methyltransf_4-2vduF02 F:66-280                                                                                                                                                                                        ------ Pfam domains (2)
         Sec.struct. author ......hhhhh.....hhh.ee....ee...eeeeee....hhhhhhhhhhh...eeeeee.hhhhhhhhhhhhhhhhhh.........eeeee.hhhhhhhhhh....eeeeeee....---------.....hhhhhhhhheeeeeeeeeee.hhhhhhhhhhhhhhh..eee.hhhhhhhhhhhhhhhh..-----------..eeeeeee....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
               Transcript 1 Exon 1.1  PDB: F:66-286 (gaps) UniProt: 1-286 [INCOMPLETE]                                                                                                                                                                    Transcript 1
                 2vdu F  66 QLEYPVSPQDMDWSKLYPYYKNAENGQMTKKVTIADIGCGFGGLMIDLSPAFPEDLILGMEIRVQVTNYVEDRIIALRNNTASKHGFQNINVLRGNAMKFLPNFFEKGQLSKMFFCFPDP---------RIITNTLLSEYAYVLKEGGVVYTITDVKDLHEWMVKHLEEHPLFERLSKEWEENDECVKIMRNAT-----------DKFVACFTRLPTPAIL 286
                                    75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255   |     -     | 275       285 
                                                                                                                                                 185       195                                                             259         271               

   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 2VDU)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (2, 4)

Asymmetric Unit

(-) Gene Ontology  (15, 24)

Asymmetric Unit(hide GO term definitions)
Chain B,D   (TRM82_YEAST | Q03774)
molecular function
    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:0008176    tRNA (guanine-N7-)-methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + tRNA = S-adenosyl-L-homocysteine + tRNA containing N7-methylguanine.
biological process
    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:0030488    tRNA methylation    The posttranscriptional addition of methyl groups to specific residues in a tRNA molecule.
    GO:0006400    tRNA modification    The covalent alteration of one or more nucleotides within a tRNA molecule to produce a tRNA molecule with a sequence that differs from that coded genetically.
    GO:0008033    tRNA processing    The process in which a pre-tRNA molecule is converted to a mature tRNA, ready for addition of an aminoacyl group.
cellular component
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0005654    nucleoplasm    That part of the nuclear content other than the chromosomes or the nucleolus.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    GO:0043527    tRNA methyltransferase complex    A multimeric protein complex involved in the methylation of specific nucleotides in tRNA.

Chain E,F   (TRMB_YEAST | Q12009)
molecular function
    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: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:0008176    tRNA (guanine-N7-)-methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + tRNA = S-adenosyl-L-homocysteine + tRNA containing N7-methylguanine.
    GO:0000049    tRNA binding    Interacting selectively and non-covalently with transfer RNA.
    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: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:0032259    methylation    The process in which a methyl group is covalently attached to a molecule.
    GO:0030488    tRNA methylation    The posttranscriptional addition of methyl groups to specific residues in a tRNA molecule.
    GO:0006400    tRNA modification    The covalent alteration of one or more nucleotides within a tRNA molecule to produce a tRNA molecule with a sequence that differs from that coded genetically.
    GO:0008033    tRNA processing    The process in which a pre-tRNA molecule is converted to a mature tRNA, ready for addition of an aminoacyl group.
cellular component
    GO:0005654    nucleoplasm    That part of the nuclear content other than the chromosomes or the nucleolus.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    GO:0043527    tRNA methyltransferase complex    A multimeric protein complex involved in the methylation of specific nucleotides in tRNA.

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 Related Entries

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

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        TRMB_YEAST | Q120092vdv

(-) Related Entries Specified in the PDB File

2vdv STRUCTURE OF TRM8, M7G METHYLATION ENZYME