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(-) Description

Title :  CRYSTAL STRUCTURE OF THE METHYLATED N-ADA/DNA COMPLEX
 
Authors :  C. He, J. -C. Hus, L. J. Sun, P. Zhou, D. P. G. Norman, V. Dotsch, J. D. Gross, W. S. Lane, G. Wagner, G. L. Verdine
Date :  05 Aug 04  (Deposition) - 11 Oct 05  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.10
Chains :  Asym./Biol. Unit :  A,B,C,D,E
Keywords :  Protein-Dna Complex, Methylation, Zinc, Helix-Turn-Helix, Metal Binding Protein/Dna Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  C. He, J. C. Hus, L. J. Sun, P. Zhou, D. P. Norman, V. Dotsch, H. Wei, J. D. Gross, W. S. Lane, G. Wagner, G. L. Verdine
A Methylation-Dependent Electrostatic Switch Controls Dna Repair And Transcriptional Activation By E. Coli Ada.
Mol. Cell V. 20 117 2005
PubMed-ID: 16209950  |  Reference-DOI: 10.1016/J.MOLCEL.2005.08.013
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - 5'-D(*TP*AP*AP*AP*TP*T)-3'
    ChainsB
    EngineeredYES
    SyntheticYES
 
Molecule 2 - 5'-D(P*AP*AP*TP*TP*T)-3'
    ChainsC
    EngineeredYES
    SyntheticYES
 
Molecule 3 - 5'-D(P*AP*AP*AP*GP*CP*GP*CP*AP*AP*GP*AP*T)-3'
    ChainsD
    EngineeredYES
    SyntheticYES
 
Molecule 4 - 5'-D(*AP*AP*TP*CP*TP*TP*GP*CP*GP*CP*TP*TP*T)-3'
    ChainsE
    EngineeredYES
    SyntheticYES
 
Molecule 5 - ADA POLYPROTEIN
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21
    Expression System PlasmidPET30A
    Expression System StrainBL21
    Expression System Taxid511693
    Expression System Vector TypePLASMID
    GeneADA
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562

 Structural Features

(-) Chains, Units

  12345
Asymmetric/Biological Unit ABCDE

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 5)

Asymmetric/Biological Unit (3, 5)
No.NameCountTypeFull Name
1MSE3Mod. Amino AcidSELENOMETHIONINE
2SMC1Mod. Amino AcidS-METHYLCYSTEINE
3ZN1Ligand/IonZINC ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARESMC A:38 , CYS A:42 , CYS A:69 , CYS A:72BINDING SITE FOR RESIDUE ZN A 150

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1U8B)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1U8B)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (1, 1)

Asymmetric/Biological Unit (1, 1)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_ADA_ECOLI_001 *E75DADA_ECOLI  ---  ---AD75D
   * ID not provided by source

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

(-) PROSITE Motifs  (2, 3)

Asymmetric/Biological Unit (2, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1HTH_ARAC_FAMILY_2PS01124 Bacterial regulatory proteins, araC family DNA-binding domain profile.ADA_ECOLI85-183  1A:85-138
2HTH_ARAC_FAMILY_1PS00041 Bacterial regulatory proteins, araC family signature.ADA_ECOLI86-128
136-177
  2A:86-128
A:136-138

(-) Exons   (0, 0)

(no "Exon" information available for 1U8B)

(-) 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:132
 aligned with ADA_ECOLI | P06134 from UniProtKB/Swiss-Prot  Length:354

    Alignment length:138
                                    10        20        30        40        50        60        70        80        90       100       110       120       130        
            ADA_ECOLI     1 MKKATCLTDDQRWQSVLARDPNADGEFVFAVRTTGIFCRPSCRARHALRENVSFYANASEALAAGFRPCKRCQPEKANAQQHRLDKITHACRLLEQETPVTLEALADQVAMSPFHLHRLFKATTGMTPKAWQQAWRAR 138
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains -1      u8bA01 A:2-77 DNA Methylphosphotriester Repair Domain                1u8bA02 A:78-138 Homeodomain-like                             CATH domains
               Pfam domains ---------Ada_Zn_binding-1u8bA02 A:10-75                                    -------------------HTH_AraC-1u8bA01 A:95-133              ----- Pfam domains
         Sec.struct. author .h------hhhhhhhhhh.hhhhh...eeee....eee.........hhh.eeee.hhhhhhhh..ee.........hhhhhhhhhhhhhhhhh......hhhhhhhhhh.hhhhhhhhhhhhh..hhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------D--------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ------------------------------------------------------------------------------------HTH_ARAC_FAMILY_2  PDB: A:85-138 UniProt: 85-183       PROSITE (1)
                PROSITE (2) -------------------------------------------------------------------------------------HTH_ARAC_FAMILY_1  PDB: A:86-128           -------HTH PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1u8b A   1 mK------DDQRWQSVLARDPNADGEFVFAVRTTGIFcRPSCRARHALRENVSFYANASEALAAGFRPCKRCQPDKANPRQHRLDKITHACRLLEQETPVTLEALADQVAmSPFHLHRLFKATTGmTPKAWQQAWRAR 138
                            ||      10        20        30       |40        50        60        70        80        90       100       110|      120     | 130        
                            ||      9                           38-SMC                                                                  111-MSE        126-MSE        
                            1-MSE                                                                                                                                     
                             2                                                                                                                                        

Chain B from PDB  Type:DNA  Length:5
                                     
                 1u8b B 201 AAATT 205

Chain C from PDB  Type:DNA  Length:5
                                     
                 1u8b C 301 AATTT 305

Chain D from PDB  Type:DNA  Length:12
                                            
                 1u8b D 401 AAAGCGCAAGAT 412
                                   410  

Chain E from PDB  Type:DNA  Length:12
                                            
                 1u8b E 501 ATCTTGCGCTTT 512
                                   510  

   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 1U8B)

(-) CATH Domains  (2, 2)

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

(-) Pfam Domains  (2, 2)

Asymmetric/Biological Unit
(-)
Clan: HTH (544)

(-) 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)

UniProtKB/Swiss-Prot
        ADA_ECOLI | P061341adn 1eyf 1sfe 1wpk 1zgw

(-) Related Entries Specified in the PDB File

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