P0DN68 · LEXA_FIBSS

Function

function

Probably represses a number of genes involved in the response to DNA damage (SOS response), including itself, recA, uvrA, ruvAB and ssb (PubMed:15528664).
The probable consensus LexA box is 5'-TGCAC-N4-GTGCA-3' (PubMed:15528664).
In the presence of single-stranded DNA, RecA interacts with LexA causing an autocatalytic cleavage which disrupts the DNA-binding part of LexA, leading to derepression of the SOS regulon and eventually DNA repair (Probable)

Catalytic activity

  • Hydrolysis of Ala-|-Gly bond in repressor LexA.
    EC:3.4.21.88 (UniProtKB | ENZYME | Rhea)

Features

Showing features for dna binding, site, active site.

121720406080100120140160180200
TypeIDPosition(s)Description
DNA binding35-55H-T-H motif
Site101-102Cleavage; by autolysis
Active site137For autocatalytic cleavage activity
Active site174For autocatalytic cleavage activity

GO annotations

all annotationsall molecular functionvirus receptor activitydna bindingrna bindingcytoskeletal motor activitycatalytic activitygtpase activitystructural molecule activitytransporter activitycytoskeletal protein bindinglipid bindingcyclase activityantioxidant activityoxidoreductase activitytransferase activityhydrolase activitylyase activityisomerase activityligase activityprotein tag activitycargo receptor activityhistone bindingprotein folding chaperonetranslation regulator activitynutrient reservoir activityreceptor ligand activitymolecular transducer activitymolecular adaptor activitytoxin activitycell adhesion mediator activitymolecular function regulator activityvirus coreceptor activitycatalytic activity, acting on a proteincatalytic activity, acting on dnacatalytic activity, acting on rnamolecular carrier activitytranscription regulator activitygeneral transcription initiation factor activitymolecular sensor activitymolecular sequestering activityatp-dependent activityother molecular functionall biological processmitotic cell cyclecytokinesiscytoplasmic translationimmune system processmuscle system processcirculatory system processrenal system processrespiratory system processcarbohydrate metabolic processgeneration of precursor metabolites and energydna replicationdna repairdna recombinationchromatin organizationdna-templated transcriptionregulation of dna-templated transcriptiontrna metabolic processprotein foldingprotein glycosylationamino acid metabolic processmodified amino acid metabolic processlipid metabolic processvitamin metabolic processsulfur compound metabolic processintracellular protein transportnucleocytoplasmic transportautophagyinflammatory responsemitochondrion organizationcytoskeleton organizationmicrotubule-based movementperoxisome organizationlysosome organizationchromosome segregationcell adhesionestablishment or maintenance of cell polarityprogrammed cell deathphotosynthesismrna metabolic processsnrna metabolic processvesicle-mediated transportreproductive processdigestive system processsignalingcell differentiationprotein catabolic processextracellular matrix organizationregulatory ncrna-mediated gene silencingtelomere organizationcell junction organizationwound healingribosome biogenesiscilium organizationanatomical structure developmentcell motilitynervous system processendocrine processprotein maturationtransmembrane transportnucleobase-containing small molecule metabolic processhepaticobiliary system processmembrane organizationprotein-containing complex assemblycell wall organization or biogenesisnitrogen cycle metabolic processprotein localization to plasma membranedefense response to other organismdetoxificationmeiotic nuclear divisionmitotic nuclear divisionmitochondrial gene expressioncarbohydrate derivative metabolic processother biological processall cellular componentnuclear chromosomeextracellular regionextracellular spacecell wallnucleusnuclear envelopenucleoplasmchromosomenucleolusmitochondrionlysosomeendosomevacuoleperoxisomeendoplasmic reticulumgolgi apparatuslipid dropletmicrotubule organizing centercytosolribosomecytoskeletonplasma membraneciliumplastidthylakoidexternal encapsulating structureextracellular matrixcytoplasmic vesicleorganelleother cellular component
Cell color indicative of number of GO terms
AspectTerm
Cellular Componentprotein-DNA complex
Molecular Functionsequence-specific DNA binding
Molecular Functionserine-type endopeptidase activity
Biological ProcessDNA repair
Biological ProcessDNA replication
Biological Processnegative regulation of DNA-templated transcription
Biological Processproteolysis
Biological ProcessSOS response

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    LexA repressor
  • EC number

Gene names

    • Name
      lexA
    • Ordered locus names
      FSU_0077

Organism names

Accessions

  • Primary accession
    P0DN68

Proteomes

Subcellular Location

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_00004351321-217LexA repressor

Keywords

Expression

Gene expression databases

Interaction

Subunit

Homodimer.

Structure

Family & Domains

Sequence similarities

Belongs to the peptidase S24 family.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    217
  • Mass (Da)
    24,288
  • Last updated
    2015-12-09 v1
  • Checksum
    C831385424BD34FF
MENTNEKRKEMTARQEEIYEYIKKYSKENHMPPTVREIGNHFDISSTNGVRSILAALIKKGYINRSPRLSRGIEILSDDKESSKEVASNTIEIPIVGRVAAGTPILAVQNLEGTVTIDRDFLACRSDVFALRVKGDSMINAGIFDGDLIFARQQKTADLGEIVVAQIDNEATVKYYHPSADHVELRPANPKYKPIIVNNRKDFSIAGRVIGVMRKVN

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP002158
EMBL· GenBank· DDBJ
-Genomic DNA No translation available.

Similar Proteins

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