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Transcription regulation PDB id
1leb
Jmol
Contents
Protein chain
72 a.a. *
* Residue conservation analysis
PDB id:
1leb
Name: Transcription regulation
Title: Solution structure of the lexa repressor DNA binding determined by 1h nmr spectroscopy
Structure: Lexa repressor DNA binding domain. Chain: a. Engineered: yes
Source: Escherichia coli. Organism_taxid: 562
NMR struc: 28 models
Authors: R.H.Fogh,G.Ottleben,H.Rueterjans,M.Schnarr,R.Boelens, R.Kaptein
Key ref: R.H.Fogh et al. (1994). Solution structure of the LexA repressor DNA binding domain determined by 1H NMR spectroscopy. Embo J, 13, 3936-3944. PubMed id: 8076591 Ref: Full text
Date:
11-May-94     Release date:   31-Aug-94    
PROCHECK
Go to PROCHECK summary
 Headers
 References

Protein chain
Pfam   ArchSchema ?
P0A7C2  (LEXA_ECOLI) -  LexA repressor
Seq:
Struc:
202 a.a.
72 a.a.
Key:    PfamA domain  Secondary structure  CATH domain

 Enzyme reactions 
   Enzyme class: E.C.3.4.21.88  - Repressor lexA.
[IntEnz]   [ExPASy]   [KEGG]   [BRENDA]
      Reaction: Hydrolysis of Ala-|-Gly bond in repressor lexA.
 Gene Ontology (GO) functional annotation 
  GO annot!
  Biological process     proteolysis   1 term 
  Biochemical function     serine-type endopeptidase activity     1 term  

 

 
Full text Embo J 13:3936-3944 (1994)
PubMed id: 8076591  
 
 
Solution structure of the LexA repressor DNA binding domain determined by 1H NMR spectroscopy.
R.H.Fogh, G.Ottleben, H.Rüterjans, M.Schnarr, R.Boelens, R.Kaptein.
 
  ABSTRACT  
 
The structure of the 84 residue DNA binding domain of the Escherichia coli LexA repressor has been determined from NMR data using distance geometry and restrained molecular dynamics. The assignment of the 1H NMR spectrum of the molecule, derived from 2- and 3-D homonuclear experiments, is also reported. A total of 613 non-redundant distance restraints were used to give a final family of 28 structures. The structured region of the molecule consisted of residues 4-69 and yielded a r.m.s. deviation from an average of 0.9 A for backbone and 1.6 A for all heavy atoms. The structure contains three regular alpha-helices at residues 6-21 (I), 28-35 (II) and 41-52 (III), and an antiparallel beta-sheet at residues 56-58 and 66-68. Helices II and III form a variant helix-turn-helix DNA binding motif, with an unusual one residue insert at residue 38. The topology of the LexA DNA binding domain is found to be the same as for the DNA binding domains of the catabolic activator protein, human histone 5, the HNF-3/fork head protein and the Kluyveromyces lactis heat shock transcription factor.
 

Literature references that cite this PDB file's key reference

  PubMed id Reference
18757543 S.E.Battle, F.Meyer, J.Rello, V.L.Kung, and A.R.Hauser (2008).
Hybrid pathogenicity island PAGI-5 contributes to the highly virulent phenotype of a Pseudomonas aeruginosa isolate in mammals.
  J Bacteriol, 190, 7130-7140.  
18247412 Y.Meroz, and D.Horn (2008).
Biological roles of specific peptides in enzymes.
  Proteins, 72, 606-612.  
16269821 E.S.Groban, M.B.Johnson, P.Banky, P.G.Burnett, G.L.Calderon, E.C.Dwyer, S.N.Fuller, B.Gebre, L.M.King, I.N.Sheren, L.D.Von Mutius, T.M.O'Gara, and C.M.Lovett (2005).
Binding of the Bacillus subtilis LexA protein to the SOS operator.
  Nucleic Acids Res, 33, 6287-6295.  
16150736 J.W.Lee, R.Kusumoto, K.M.Doherty, G.X.Lin, W.Zeng, W.H.Cheng, C.von Kobbe, R.M.Brosh, J.S.Hu, and V.A.Bohr (2005).
Modulation of Werner syndrome protein function by a single mutation in the conserved RecQ domain.
  J Biol Chem, 280, 39627-39636.  
16000766 M.K.Yang, S.R.Su, and V.L.Sung (2005).
Identification and characterization of a second lexA gene of Xanthomonas axonopodis Pathovar citri.
  Appl Environ Microbiol, 71, 3589-3598.  
15225304 F.Domain, L.Houot, F.Chauvat, and C.Cassier-Chauvat (2004).
Function and regulation of the cyanobacterial genes lexA, recA and ruvB: LexA is critical to the survival of cells facing inorganic carbon starvation.
  Mol Microbiol, 53, 65-80.  
15454462 F.Kühner, L.T.Costa, P.M.Bisch, S.Thalhammer, W.M.Heckl, and H.E.Gaub (2004).
LexA-DNA bond strength by single molecule force spectroscopy.
  Biophys J, 87, 2683-2690.  
14691236 H.Fan, and A.E.Mark (2004).
Refinement of homology-based protein structures by molecular dynamics simulation techniques.
  Protein Sci, 13, 211-220.  
15466027 M.F.Susin, H.R.Perez, R.L.Baldini, and S.L.Gomes (2004).
Functional and structural analysis of HrcA repressor protein from Caulobacter crescentus.
  J Bacteriol, 186, 6759-6767.  
15704013 W.A.McLaughlin, D.W.Kulp, J.de la Cruz, X.J.Lu, C.L.Lawson, and H.M.Berman (2004).
A structure-based method for identifying DNA-binding proteins and their sites of DNA-interaction.
  J Struct Funct Genomics, 5, 255-265.  
12867456 A.R.Fernández de Henestrosa, J.Cuñé, G.Mazón, B.L.Dubbels, D.A.Bazylinski, and J.Barbé (2003).
Characterization of a new LexA binding motif in the marine magnetotactic bacterium strain MC-1.
  J Bacteriol, 185, 4471-4482.  
12945054 H.Fan, and A.E.Mark (2003).
Relative stability of protein structures determined by X-ray crystallography or NMR spectroscopy: a molecular dynamics simulation study.
  Proteins, 53, 111-120.  
  12962631 N.Mizuno, G.Voordouw, K.Miki, A.Sarai, and Y.Higuchi (2003).
Crystal structure of dissimilatory sulfite reductase D (DsrD) protein--possible interaction with B- and Z-DNA by its winged-helix motif.
  Structure, 11, 1133-1140.
PDB code: 1ucr
12374844 A.R.Fernández de Henestrosa, J.Cuñé, I.Erill, J.K.Magnuson, and J.Barbé (2002).
A green nonsulfur bacterium, Dehalococcoides ethenogenes, with the LexA binding sequence found in gram-positive organisms.
  J Bacteriol, 184, 6073-6080.  
11698386 I.Narumi, K.Satoh, M.Kikuchi, T.Funayama, T.Yanagisawa, Y.Kobayashi, H.Watanabe, and K.Yamamoto (2001).
The LexA protein from Deinococcus radiodurans is not involved in RecA induction following gamma irradiation.
  J Bacteriol, 183, 6951-6956.  
  11305941 K.S.Makarova, A.A.Mironov, and M.S.Gelfand (2001).
Conservation of the binding site for the arginine repressor in all bacterial lineages.
  Genome Biol, 2, RESEARCH0013.  
  11580863 M.Abedi, G.Caponigro, J.Shen, S.Hansen, T.Sandrock, and A.Kamb (2001).
Transcriptional transactivation by selected short random peptides attached to lexA-GFP fusion proteins.
  BMC Mol Biol, 2, 10.  
11551506 Y.Luo, R.A.Pfuetzner, S.Mosimann, M.Paetzel, E.A.Frey, M.Cherney, B.Kim, J.W.Little, and N.C.Strynadka (2001).
Crystal structure of LexA: a conformational switch for regulation of self-cleavage.
  Cell, 106, 585-594.
PDB codes: 1jhc 1jhe 1jhf 1jhh
10734204 E.Pérez-Rueda, and J.Collado-Vides (2000).
The repertoire of DNA-binding transcriptional regulators in Escherichia coli K-12.
  Nucleic Acids Res, 28, 1838-1847.  
10679470 K.S.Gajiwala, and S.K.Burley (2000).
Winged helix proteins.
  Curr Opin Struct Biol, 10, 110-116.  
10716934 M.Okuda, Y.Watanabe, H.Okamura, F.Hanaoka, Y.Ohkuma, and Y.Nishimura (2000).
Structure of the central core domain of TFIIEbeta with a novel double-stranded DNA-binding surface.
  EMBO J, 19, 1346-1356.
PDB codes: 1d8j 1d8k
11069648 R.J.Lewis, S.Krzywda, J.A.Brannigan, J.P.Turkenburg, K.Muchová, E.J.Dodson, I.Barák, and A.J.Wilkinson (2000).
The trans-activation domain of the sporulation response regulator Spo0A revealed by X-ray crystallography.
  Mol Microbiol, 38, 198-212.
PDB code: 1fc3
10671501 R.Mohana-Borges, A.B.Pacheco, F.J.Sousa, D.Foguel, D.F.Almeida, and J.L.Silva (2000).
LexA repressor forms stable dimers in solution. The role of specific dna in tightening protein-protein interactions.
  J Biol Chem, 275, 4708-4712.  
9689043 C.M.Groft, S.N.Uljon, R.Wang, and M.H.Werner (1998).
Structural homology between the Rap30 DNA-binding domain and linker histone H5: implications for preinitiation complex assembly.
  Proc Natl Acad Sci U S A, 95, 9117-9122.
PDB codes: 1bby 2bby
  9562558 J.Furui, K.Uegaki, T.Yamazaki, M.Shirakawa, M.B.Swindells, H.Harada, T.Taniguchi, and Y.Kyogoku (1998).
Solution structure of the IRF-2 DNA-binding domain: a novel subgroup of the winged helix-turn-helix family.
  Structure, 6, 491-500.
PDB codes: 1irf 1irg
9565750 J.P.Schneider, A.Lombardi, and W.F.DeGrado (1998).
Analysis and design of three-stranded coiled coils and three-helix bundles.
  Fold Des, 3, R29-R40.  
  9521130 P.Oertel-Buchheit, J.Reinbolt, M.John, M.Granger-Schnarr, and M.Schnarr (1998).
A LexA mutant repressor with a relaxed inter-domain linker.
  Protein Sci, 7, 512-515.  
9237992 A.Herbert, J.Alfken, Y.G.Kim, I.S.Mian, K.Nishikura, and A.Rich (1997).
A Z-DNA binding domain present in the human editing enzyme, double-stranded RNA adenosine deaminase.
  Proc Natl Acad Sci U S A, 94, 8421-8426.  
8989318 H.Kondo, A.Nakagawa, J.Nishihira, Y.Nishimura, T.Mizuno, and I.Tanaka (1997).
Escherichia coli positive regulator OmpR has a large loop structure at the putative RNA polymerase interaction site.
  Nat Struct Biol, 4, 28-31.
PDB code: 1odd
  9045831 K.W.Winterling, A.S.Levine, R.E.Yasbin, and R.Woodgate (1997).
Characterization of DinR, the Bacillus subtilis SOS repressor.
  J Bacteriol, 179, 1698-1703.  
9032054 M.A.Kercher, P.Lu, and M.Lewis (1997).
Lac repressor-operator complex.
  Curr Opin Struct Biol, 7, 76-85.  
9334747 M.Sunnerhagen, M.Nilges, G.Otting, and J.Carey (1997).
Solution structure of the DNA-binding domain and model for the complex of multifunctional hexameric arginine repressor with DNA.
  Nat Struct Biol, 4, 819-826.
PDB code: 1aoy
9053397 W.D.Kohn, C.T.Mant, and R.S.Hodges (1997).
Alpha-helical protein assembly motifs.
  J Biol Chem, 272, 2583-2586.  
8793875 B.Sheehan, A.Klarsfeld, R.Ebright, and P.Cossart (1996).
A single substitution in the putative helix-turn-helix motif of the pleiotropic activator PrfA attenuates Listeria monocytogenes virulence.
  Mol Microbiol, 20, 785-797.  
  8523550 H.Goulaouic, and S.A.Chow (1996).
Directed integration of viral DNA mediated by fusion proteins consisting of human immunodeficiency virus type 1 integrase and Escherichia coli LexA protein.
  J Virol, 70, 37-46.  
  8670817 K.S.Pai, D.E.Bussiere, F.Wang, C.A.Hutchison, S.W.White, and D.Bastia (1996).
The structure and function of the replication terminator protein of Bacillus subtilis: identification of the 'winged helix' DNA-binding domain.
  EMBO J, 15, 3164-3173.  
  8598195 L.W.Donaldson, J.M.Petersen, B.J.Graves, and L.P.McIntosh (1996).
Solution structure of the ETS domain from murine Ets-1: a winged helix-turn-helix DNA binding motif.
  EMBO J, 15, 125-134.
PDB codes: 1etc 1etd
9174925 S.L.Shaner, and E.S.Gaissarian (1996).
Binding of Escherichia coli LexA repressor to the RecA operator.
  J Mol Recognit, 9, 468-473.  
7559397 D.Porte, P.Oertel-Buchheit, M.Granger-Schnarr, and M.Schnarr (1995).
Fos leucine zipper variants with increased association capacity.
  J Biol Chem, 270, 22721-22730.  
7667887 M.B.Swindells (1995).
Identification of a common fold in the replication terminator protein suggests a possible mode for DNA binding.
  Trends Biochem Sci, 20, 300-302.  
  7556054 R.H.Folmer, M.Nilges, R.N.Konings, and C.W.Hilbers (1995).
Solution structure of the single-stranded DNA binding protein of the filamentous Pseudomonas phage Pf3: similarity to other proteins binding to single-stranded nucleic acids.
  EMBO J, 14, 4132-4142.
PDB code: 1pfs
7784426 R.M.Knegtel, R.H.Fogh, G.Ottleben, H.Rüterjans, P.Dumoulin, M.Schnarr, R.Boelens, and R.Kaptein (1995).
A model for the LexA repressor DNA complex.
  Proteins, 21, 226-236.  
The most recent references are shown first. Citation data come partly from CiteXplore and partly from an automated harvesting procedure. Note that this is likely to be only a partial list as not all journals are covered by either method. However, we are continually building up the citation data so more and more references will be included with time. Where a reference describes a PDB structure, the PDB code is shown on the right.