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(-) Description

Authors :  M. H. Moore, J. M. Gulbis, E. J. Dodson, B. Demple, P. C. E. Moody
Date :  21 Jun 96  (Deposition) - 23 Dec 96  (Release) - 13 Jul 11  (Revision)
Resolution :  2.10
Chains :  Asym./Biol. Unit :  A
Keywords :  Enzyme, Transferase, Methyltransferase, Nucleic Acid Binding Protein, Dna Repair Protein, Dna-Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  M. H. Moore, J. M. Gulbis, E. J. Dodson, B. Demple, P. C. Moody
Crystal Structure Of A Suicidal Dna Repair Protein: The Ada O6-Methylguanine-Dna Methyltransferase From E. Coli.
Embo J. V. 13 1495 1994
PubMed-ID: 8156986
(for further references see the PDB file header)

(-) Compounds

    EC Number2.1.1.63
    Expression SystemESCHERICHIA COLI
    Expression System GeneADAC
    Expression System PlasmidPADAC
    Expression System Taxid562
    Organism ScientificESCHERICHIA COLI
    Organism Taxid37762
    Other DetailsTAC CONTROL
    VariantJM 101

 Structural Features

(-) Chains, Units

Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1SFE)

(-) Sites  (0, 0)

(no "Site" information available for 1SFE)

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1SFE)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (2, 2)

Asymmetric/Biological Unit (2, 2)
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_ADA_ECOLI_002 *I318VADA_ECOLI  ---  ---AV143V
2UniProtVAR_ADA_ECOLI_003 *T330SADA_ECOLI  ---  ---AS155S
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
1MGMTPS00374 Methylated-DNA--protein-cysteine methyltransferase active site.ADA_ECOLI319-325  1A:144-150

(-) Exons   (0, 0)

(no "Exon" information available for 1SFE)

(-) 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:165
 aligned with ADA_ECOLI | P06134 from UniProtKB/Swiss-Prot  Length:354

    Alignment length:165
                                   196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346     
               SCOP domains d1sfea2 A:12-92 Ada DNA repair protein                                           d1sfea1 A:93-176 Ada DNA repair protein                                              SCOP domains
               CATH domains 1sfeA01 A:12-92  [code=, no name defined]                             1sfeA02 A:93-176 'winged helix' repressor DNA binding domain                         CATH domains
               Pfam domains -Methyltransf_1N-1sfeA02 A:13-91                                                --DNA_binding_1-1sfeA01 A:94-176                                                      Pfam domains
         Sec.struct. author ...eeeeeee..eeeeeee....eeeeeee..hhhhhhhhhhh..........hhhhhhhhhhhhhhh...............hhhhhhhhhhhh........hhhhhhh......hhhhhhhhhh........hhh..............hhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) -----------------------------------------------------------------------------------------------------------------------------------V-----------S--------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------MGMT   -------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                                    21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171     

   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  (2, 2)

Asymmetric/Biological Unit

(-) CATH Domains  (2, 2)

Asymmetric/Biological Unit
Class: Alpha Beta (26913)

(-) Pfam Domains  (2, 2)

Asymmetric/Biological Unit

(-) Gene Ontology  (19, 19)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (ADA_ECOLI | P06134)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    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:0003684    damaged DNA binding    Interacting selectively and non-covalently with damaged DNA.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0003908    methylated-DNA-[protein]-cysteine S-methyltransferase activity    Catalysis of the reaction: DNA (containing 6-O-methylguanine) + (protein)-L-cysteine = DNA (without 6-O-methylguanine) + protein S-methyl-L-cysteine.
    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:0043565    sequence-specific DNA binding    Interacting selectively and non-covalently with DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding.
    GO:0003700    transcription factor activity, sequence-specific DNA binding    Interacting selectively and non-covalently with a specific DNA sequence in order to modulate transcription. The transcription factor may or may not also interact selectively with a protein or macromolecular complex.
    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.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0006307    DNA dealkylation involved in DNA repair    The repair of alkylation damage, e.g. the removal of the alkyl group at the O6-position of guanine by O6-alkylguanine-DNA alkyltransferase (AGT).
    GO:0080111    DNA demethylation    The removal of a methyl group from one or more nucleotides within an DNA molecule.
    GO:0006281    DNA repair    The process of restoring DNA after damage. Genomes are subject to damage by chemical and physical agents in the environment (e.g. UV and ionizing radiations, chemical mutagens, fungal and bacterial toxins, etc.) and by free radicals or alkylating agents endogenously generated in metabolism. DNA is also damaged because of errors during its replication. A variety of different DNA repair pathways have been reported that include direct reversal, base excision repair, nucleotide excision repair, photoreactivation, bypass, double-strand break repair pathway, and mismatch repair pathway.
    GO:0006974    cellular response to DNA damage stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating damage to its DNA from environmental insults or errors during metabolism.
    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:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0006351    transcription, DNA-templated    The cellular synthesis of RNA on a template of DNA.


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 Related Entries

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

        ADA_ECOLI | P061341adn 1eyf 1u8b 1wpk 1zgw

(-) Related Entries Specified in the PDB File

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