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(-) Description

Title :  DNA MISMATCH REPAIR PROTEIN MUTH FROM E. COLI
 
Authors :  W. Yang
Date :  19 Nov 97  (Deposition) - 20 May 98  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.70
Chains :  Asym./Biol. Unit :  A
Keywords :  Endonuclease, Muth, Dna Repair, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  C. Ban, W. Yang
Structural Basis For Muth Activation In E. Coli Mismatch Repair And Relationship Of Muth To Restriction Endonucleases.
Embo J. V. 17 1526 1998
PubMed-ID: 9482749  |  Reference-DOI: 10.1093/EMBOJ/17.5.1526

(-) Compounds

Molecule 1 - MUTH
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPTX417
    Expression System Taxid562
    Organism ScientificESCHERICHIA COLI
    Organism Taxid83333
    StrainK12
    SynonymDNA MISMATCH REPAIR PROTEIN MUTH

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 13)

Asymmetric/Biological Unit (2, 13)
No.NameCountTypeFull Name
1EDO11Ligand/Ion1,2-ETHANEDIOL
2MSE2Mod. Amino AcidSELENOMETHIONINE

(-) Sites  (11, 11)

Asymmetric Unit (11, 11)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREGLY A:26 , VAL A:138 , GLY A:139 , HOH A:562 , EDO A:602BINDING SITE FOR RESIDUE EDO A 601
02AC2SOFTWAREVAL A:83 , GLU A:126 , GLY A:139 , HOH A:316 , HOH A:483 , HOH A:496 , EDO A:601BINDING SITE FOR RESIDUE EDO A 602
03AC3SOFTWAREGLU A:14 , SER A:85 , LEU A:86 , HOH A:326 , HOH A:456BINDING SITE FOR RESIDUE EDO A 603
04AC4SOFTWARESER A:85 , ARG A:88 , GLU A:128 , HOH A:357 , HOH A:501 , EDO A:608BINDING SITE FOR RESIDUE EDO A 604
05AC5SOFTWAREGLU A:14 , ARG A:119 , HOH A:507BINDING SITE FOR RESIDUE EDO A 605
06AC6SOFTWARELYS A:79 , THR A:80 , PHE A:94BINDING SITE FOR RESIDUE EDO A 606
07AC7SOFTWAREPRO A:99 , ASN A:103 , VAL A:106 , SER A:111 , HIS A:112 , VAL A:113 , TRP A:158BINDING SITE FOR RESIDUE EDO A 607
08AC8SOFTWARELEU A:86 , ARG A:88 , LEU A:142 , LEU A:143 , HIS A:225 , ILE A:228 , HOH A:302 , EDO A:604BINDING SITE FOR RESIDUE EDO A 608
09AC9SOFTWAREALA A:34 , GLY A:37 , THR A:110 , ARG A:203 , HOH A:492BINDING SITE FOR RESIDUE EDO A 609
10BC1SOFTWAREGLY A:105 , VAL A:106 , THR A:110 , ILE A:204 , LEU A:205 , HOH A:520BINDING SITE FOR RESIDUE EDO A 610
11BC2SOFTWAREGLN A:22 , SER A:25 , SER A:140 , PRO A:141 , HOH A:379 , HOH A:469BINDING SITE FOR RESIDUE EDO A 611

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (5, 5)

Asymmetric/Biological Unit (5, 5)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_MUTH_ECOLI_001 *W58SMUTH_ECOLI  ---  ---AW58S
2UniProtVAR_MUTH_ECOLI_002 *G60CMUTH_ECOLI  ---  ---AG60C
3UniProtVAR_MUTH_ECOLI_004 *Q135KMUTH_ECOLI  ---  ---AQ135K
4UniProtVAR_MUTH_ECOLI_005 *Q153RMUTH_ECOLI  ---  ---AQ153R
5UniProtVAR_MUTH_ECOLI_006 *R155CMUTH_ECOLI  ---  ---AR155C
   * ID not provided by source

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1AZO)

(-) 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:214
 aligned with MUTH_ECOLI | P06722 from UniProtKB/Swiss-Prot  Length:229

    Alignment length:226
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223      
           MUTH_ECOLI     4 PRPLLSPPETEEQLLAQAQQLSGYTLGELAALVGLVTPENLKRDKGWIGVLLEIWLGASAGSKPEQDFAALGVELKTIPVDSLGRPLETTFVCVAPLTGNSGVTWETSHVRHKLKRVLWIPVEGERSIPLAQRRVGSPLLWSPNEEEDRQLREDWEELMDMIVLGQVERITARHGEYLQIRPKAANAKALTEAIGARGERILTLPRGFYLKKNFTSALLARHFLIQ 229
               SCOP domains d1azoa_ A: DNA mismatch repair protein MutH from                                                                                                                                                                                   SCOP domains
               CATH domains 1azoA00 A:4-229  [code=3.40.600.10, no name defined]                                                                                                                                                                               CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........hhhhhhhhhhh....hhhhhhhh.............hhhhhhhhh...-----..hhhh....eeeeeee.........eeeee..............hhhhh...eeeeeee......hhh.....eeee...hhhhhhhhhhhhhhhhhhh...hhh........eeee.-------.eeee.....eeee...eeee.hhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------S-C--------------------------------------------------------------------------K-----------------R-C-------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1azo A   4 PRPLLSPPETEEQLLAQAQQLSGYTLGELAALVGLVTPENLKRDKGWIGVLLEIWLGA-----PEQDFAALGVELKTIPVDSLGRPLETTFVCVAPLTGNSGVTWETSHVRHKLKRVLWIPVEGEASIPLAQRRVGSPLLWSPNEEEDRQLREDWEELmDmIVLGQVERITARHGEYLQIRP-------LTEAIGARGERILTLPRGFYLKKNFTSALLARHFLIQ 229
                                    13        23        33        43        53       | -   |    73        83        93       103       113       123       133       143       153       163|      173       183 |     193       203       213       223      
                                                                                    61    67                                                                                            162-MSE                185     193                                    
                                                                                                                                                                                          164-MSE                                                             

   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, 1)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1AZO)

(-) Gene Ontology  (14, 14)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (MUTH_ECOLI | P06722)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0043765    T/G mismatch-specific endonuclease activity    Catalysis of the repair of T/G mismatches arising from deamination of 5-methylcytosine in DNA by nicking double-stranded DNA within the sequence CT(AT)GN or NT(AT)GG next to the mismatched thymidine residue. The incision is mismatch-dependent and strand-specific, in favor of the G-containing strand. The incision serves as a starting point for subsequent excision repair by DNA polymerase I, which excises thymidine and reinserts cytidine.
    GO:0004519    endonuclease activity    Catalysis of the hydrolysis of ester linkages within nucleic acids by creating internal breaks.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0004518    nuclease activity    Catalysis of the hydrolysis of ester linkages within nucleic acids.
    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).
biological process
    GO:0006304    DNA modification    The covalent alteration of one or more nucleotide sites in DNA, resulting in a change in its properties.
    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: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.
    GO:0090305    nucleic acid phosphodiester bond hydrolysis    The nucleic acid metabolic process in which the phosphodiester bonds between nucleotides are cleaved by hydrolysis.
    GO:0000018    regulation of DNA recombination    Any process that modulates the frequency, rate or extent of DNA recombination, a DNA metabolic process in which a new genotype is formed by reassortment of genes resulting in gene combinations different from those that were present in the parents.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0032300    mismatch repair complex    Any complex formed of proteins that act in mismatch repair.

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 Related Entries

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

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        MUTH_ECOLI | P067222azo

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