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(-) Description

Title :  BINARY STRUCTURE OF ESCHERICHIA COLI DNA ADENINE METHYLTRANSFERASE AND S-ADENOSYLHOMOCYSTEINE
 
Authors :  J. R. Horton, X. Cheng
Date :  02 Feb 07  (Deposition) - 26 Jun 07  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.99
Chains :  Asym. Unit :  D,E,F
Biol. Unit 1:  D  (1x)
Biol. Unit 2:  E  (1x)
Biol. Unit 3:  F  (1x)
Keywords :  Dam Methylation, Gatc Recognition, S-Adenosylhomocysteine Conformation, Bacterial Virulence Factor, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  K. Liebert, J. R. Horton, S. Chahar, M. Orwick, X. Cheng, A. Jeltsch
Two Alternative Conformations Of S-Adenosyl-L-Homocysteine Bound To Escherichia Coli Dna Adenine Methyltransferase And The Implication Of Conformational Changes In Regulating The Catalytic Cycle.
J. Biol. Chem. V. 282 22848 2007
PubMed-ID: 17545164  |  Reference-DOI: 10.1074/JBC.M700926200
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - DNA ADENINE METHYLASE
    ChainsD, E, F
    EC Number2.1.1.72
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainHMS174(DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneDAM
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
    SynonymDEOXYADENOSYL-METHYLTRANSFERASE, DNA ADENINE METHYLTRANSFERASE, M.ECODAM

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit DEF
Biological Unit 1 (1x)D  
Biological Unit 2 (1x) E 
Biological Unit 3 (1x)  F

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 4)

Asymmetric Unit (2, 4)
No.NameCountTypeFull Name
1SAH3Ligand/IonS-ADENOSYL-L-HOMOCYSTEINE
2SO41Ligand/IonSULFATE ION
Biological Unit 1 (1, 1)
No.NameCountTypeFull Name
1SAH1Ligand/IonS-ADENOSYL-L-HOMOCYSTEINE
2SO4-1Ligand/IonSULFATE ION
Biological Unit 2 (1, 1)
No.NameCountTypeFull Name
1SAH1Ligand/IonS-ADENOSYL-L-HOMOCYSTEINE
2SO4-1Ligand/IonSULFATE ION
Biological Unit 3 (2, 2)
No.NameCountTypeFull Name
1SAH1Ligand/IonS-ADENOSYL-L-HOMOCYSTEINE
2SO41Ligand/IonSULFATE ION

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPRO D:83 , ARG F:171BINDING SITE FOR RESIDUE SO4 F 501
2AC2SOFTWARETRP D:10 , PRO D:34 , PHE D:35 , ASP D:54 , ILE D:55 , SER D:164 , TYR D:165 , ASP D:181 , PRO D:183 , TYR D:184BINDING SITE FOR RESIDUE SAH D 301
3AC3SOFTWARETRP E:10 , ALA E:11 , GLY E:12 , PRO E:34 , PHE E:35 , VAL E:36 , GLY E:37 , ALA E:38 , SER E:40 , ASP E:54 , ILE E:55 , SER E:164 , TYR E:165 , ASP E:181 , PRO E:182 , PRO E:183 , TYR E:184BINDING SITE FOR RESIDUE SAH E 302
4AC4SOFTWARETRP F:10 , ALA F:11 , GLY F:13 , LYS F:14 , PRO F:34 , PHE F:35 , VAL F:36 , GLY F:37 , ALA F:38 , GLY F:39 , SER F:40 , ASP F:54 , ILE F:55 , SER F:164 , TYR F:165 , ASP F:181 , PRO F:182 , PRO F:183 , TYR F:184BINDING SITE FOR RESIDUE SAH F 303

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 3)

Asymmetric Unit (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1N6_MTASEPS00092 N-6 Adenine-specific DNA methylases signature.DMA_ECOLI178-184
 
 
  3D:178-184
E:178-184
F:178-184
Biological Unit 1 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1N6_MTASEPS00092 N-6 Adenine-specific DNA methylases signature.DMA_ECOLI178-184
 
 
  1D:178-184
-
-
Biological Unit 2 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1N6_MTASEPS00092 N-6 Adenine-specific DNA methylases signature.DMA_ECOLI178-184
 
 
  1-
E:178-184
-
Biological Unit 3 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1N6_MTASEPS00092 N-6 Adenine-specific DNA methylases signature.DMA_ECOLI178-184
 
 
  1-
-
F:178-184

(-) Exons   (0, 0)

(no "Exon" information available for 2ORE)

(-) 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 D from PDB  Type:PROTEIN  Length:243
 aligned with DMA_ECOLI | P0AEE8 from UniProtKB/Swiss-Prot  Length:278

    Alignment length:268
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262        
            DMA_ECOLI     3 KNRAFLKWAGGKYPLLDDIKRHLPKGECLVEPFVGAGSVFLNTDFSRYILADINSDLISLYNIVKMRTDEYVQAARELFVPETNCAEVYYQFREEFNKSQDPFRRAVLFLYLNRYGYNGLCRYNLRGEFNVPFGRYKKPYFPEAELYHFAEKAQNAFFYCESYADSMARADDASVVYCDPPYAPLSATANFTAYHTNSFTLEQQAHLAEIAEGLVERHIPVLISNHDTMLTREWYQRAKLHVVKVRRSISSNGGTRKKVDELLALYKP 270
               SCOP domains d2ored_ D: DNA methylase T4DAM                                                                                                                                                                                                                                               SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............hhhhhhhh.....eeee.....hhhhhh....eeeee..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhh.....................hhhhhhhhhhhh..eeee..hhhhhhh.....eeeee.......-----------...hhhhhhhhhhhhhhhhhh...eeeee..hhhhhhhh...eeeee.--------------..eeeeee.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------N6_MTAS-------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2ore D   3 KNRAFLKWAGGKYPLLDDIKRHLPKGECLVEPFVGAGSVFLNTDFSRYILADINSDLISLYNIVKMRTDEYVQAARELFVPETNCAEVYYQFREEFNKSQDPFRRAVLFLYLNRYGYNGLCRYNLRGEFNVPFGRYKKPYFPEAELYHFAEKAQNAFFYCESYADSMARADDASVVYCDPPYAPL-----------NSFTLEQQAHLAEIAEGLVERHIPVLISNHDTMLTREWYQRAKLHVVK--------------VDELLALYKP 270
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182    |    -      |202       212       222       232       242   |     -       262        
                                                                                                                                                                                                                  187         199                                            246            261         

Chain E from PDB  Type:PROTEIN  Length:244
 aligned with DMA_ECOLI | P0AEE8 from UniProtKB/Swiss-Prot  Length:278

    Alignment length:268
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262        
            DMA_ECOLI     3 KNRAFLKWAGGKYPLLDDIKRHLPKGECLVEPFVGAGSVFLNTDFSRYILADINSDLISLYNIVKMRTDEYVQAARELFVPETNCAEVYYQFREEFNKSQDPFRRAVLFLYLNRYGYNGLCRYNLRGEFNVPFGRYKKPYFPEAELYHFAEKAQNAFFYCESYADSMARADDASVVYCDPPYAPLSATANFTAYHTNSFTLEQQAHLAEIAEGLVERHIPVLISNHDTMLTREWYQRAKLHVVKVRRSISSNGGTRKKVDELLALYKP 270
               SCOP domains d2oree_ E: DNA methylase T4DAM                                                                                                                                                                                                                                               SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............hhhhhhhhh....eeee.....hhhhhh....eeeee..hhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhh.....................hhhhhhhhhhhhh...ee..hhhhhhh.....eeeee.......------------..hhhhhhhhhhhhhhhhhh...eeeeee.hhhhhhhh...eeeee..------------...eeeeee.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------N6_MTAS-------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2ore E   3 KNRAFLKWAGGKYPLLDDIKRHLPKGECLVEPFVGAGSVFLNTDFSRYILADINSDLISLYNIVKMRTDEYVQAARELFVPETNCAEVYYQFREEFNKSQDPFRRAVLFLYLNRYGYNGLCRYNLRGEFNVPFGRYKKPYFPEAELYHFAEKAQNAFFYCESYADSMARADDASVVYCDPPYAPL------------SFTLEQQAHLAEIAEGLVERHIPVLISNHDTMLTREWYQRAKLHVVKV------------KVDELLALYKP 270
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182    |    -       202       212       222       232       242    |    -       262        
                                                                                                                                                                                                                  187          200                                            247          260          

Chain F from PDB  Type:PROTEIN  Length:244
 aligned with DMA_ECOLI | P0AEE8 from UniProtKB/Swiss-Prot  Length:278

    Alignment length:268
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262        
            DMA_ECOLI     3 KNRAFLKWAGGKYPLLDDIKRHLPKGECLVEPFVGAGSVFLNTDFSRYILADINSDLISLYNIVKMRTDEYVQAARELFVPETNCAEVYYQFREEFNKSQDPFRRAVLFLYLNRYGYNGLCRYNLRGEFNVPFGRYKKPYFPEAELYHFAEKAQNAFFYCESYADSMARADDASVVYCDPPYAPLSATANFTAYHTNSFTLEQQAHLAEIAEGLVERHIPVLISNHDTMLTREWYQRAKLHVVKVRRSISSNGGTRKKVDELLALYKP 270
               SCOP domains d2oref_ F: DNA methylase T4DAM                                                                                                                                                                                                                                               SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) -------MethyltransfD12-2oreF01 F:10-247                                                                                                                                                                                                                           ---------- Pfam domains (1)
           Pfam domains (2) -------MethyltransfD12-2oreF02 F:10-247                                                                                                                                                                                                                           ---------- Pfam domains (2)
           Pfam domains (3) -------MethyltransfD12-2oreF03 F:10-247                                                                                                                                                                                                                           ---------- Pfam domains (3)
         Sec.struct. author ...........hhhhhhhhhhhh....eeee.......hhhhh...eeeee..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhh.....................hhhhhhhhhhhh..eeee..hhhhhhhhh...eeeee.......-----------...hhhhhhhhhhhhhhhhh....eeeeee.hhhhhhhh...eeeee..-------------..eeeeee.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------N6_MTAS-------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2ore F   3 KNRAFLKWAGGKYPLLDDIKRHLPKGECLVEPFVGAGSVFLNTDFSRYILADINSDLISLYNIVKMRTDEYVQAARELFVPETNCAEVYYQFREEFNKSQDPFRRAVLFLYLNRYGYNGLCRYNLRGEFNVPFGRYKKPYFPEAELYHFAEKAQNAFFYCESYADSMARADDASVVYCDPPYAPL-----------NSFTLEQQAHLAEIAEGLVERHIPVLISNHDTMLTREWYQRAKLHVVKV-------------VDELLALYKP 270
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182    |    -      |202       212       222       232       242    |    -       262        
                                                                                                                                                                                                                  187         199                                             247           261         

   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  (1, 3)

Asymmetric Unit

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (1, 3)

Asymmetric Unit

(-) Gene Ontology  (12, 12)

Asymmetric Unit(hide GO term definitions)
Chain D,E,F   (DMA_ECOLI | P0AEE8)
molecular function
    GO:1904047    S-adenosyl-L-methionine binding    Interacting selectively and non-covalently with S-adenosyl-L-methionine.
    GO:0008168    methyltransferase activity    Catalysis of the transfer of a methyl group to an acceptor molecule.
    GO:0003676    nucleic acid binding    Interacting selectively and non-covalently with any nucleic acid.
    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:0009007    site-specific DNA-methyltransferase (adenine-specific) activity    Catalysis of the reaction: S-adenosyl-L-methionine + DNA adenine = S-adenosyl-L-homocysteine + DNA 6-methylaminopurine.
    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:0032775    DNA methylation on adenine    The covalent transfer of a methyl group to N-6 of adenine in a DNA molecule.
    GO:0006260    DNA replication    The cellular metabolic process in which a cell duplicates one or more molecules of DNA. DNA replication begins when specific sequences, known as origins of replication, are recognized and bound by initiation proteins, and ends when the original DNA molecule has been completely duplicated and the copies topologically separated. The unit of replication usually corresponds to the genome of the cell, an organelle, or a virus. The template for replication can either be an existing DNA molecule or RNA.
    GO:0006261    DNA-dependent DNA replication    A DNA replication process that uses parental DNA as a template for the DNA-dependent DNA polymerases that synthesize the new strands.
    GO:1902328    bacterial-type DNA replication initiation    Any DNA replication initiation that is involved in bacterial-type DNA replication.
    GO:0032259    methylation    The process in which a methyl group is covalently attached to a molecule.
    GO:0006298    mismatch repair    A system for the correction of errors in which an incorrect base, which cannot form hydrogen bonds with the corresponding base in the parent strand, is incorporated into the daughter strand. The mismatch repair system promotes genomic fidelity by repairing base-base mismatches, insertion-deletion loops and heterologies generated during DNA replication and recombination.

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 Related Entries

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

UniProtKB/Swiss-Prot
        DMA_ECOLI | P0AEE82g1p 4gbe 4gol 4gom 4gon 4goo 4rtj 4rtk 4rtl 4rtm 4rtn 4rto 4rtp 4rtq 4rtr 4rts

(-) Related Entries Specified in the PDB File

2g1p STRUCTURE OF E. COLI DNA ADENINE METHYLTRANSFERASE (DAM)