Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

LexA repressor

Gene

lexA

Organism
Azorhizobium caulinodans (strain ATCC 43989 / DSM 5975 / JCM 20966 / NBRC 14845 / NCIMB 13405 / ORS 571)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Represses a number of genes involved in the response to DNA damage (SOS response), including recA and lexA. 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.UniRule annotation

Catalytic activityi

Hydrolysis of Ala-|-Gly bond in repressor LexA.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei157 – 1571For autocatalytic cleavage activityUniRule annotation
Active sitei195 – 1951For autocatalytic cleavage activityUniRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
DNA bindingi26 – 4621H-T-H motifUniRule annotationAdd
BLAST

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Hydrolase, Repressor

Keywords - Biological processi

DNA damage, DNA repair, DNA replication, SOS response, Transcription, Transcription regulation

Keywords - Ligandi

DNA-binding

Enzyme and pathway databases

BioCyciACAU438753:GJF3-2229-MONOMER.

Protein family/group databases

MEROPSiS24.001.

Names & Taxonomyi

Protein namesi
Recommended name:
LexA repressorUniRule annotation (EC:3.4.21.88UniRule annotation)
Gene namesi
Name:lexAUniRule annotation
Ordered Locus Names:AZC_2201
OrganismiAzorhizobium caulinodans (strain ATCC 43989 / DSM 5975 / JCM 20966 / NBRC 14845 / NCIMB 13405 / ORS 571)
Taxonomic identifieri438753 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhizobialesXanthobacteraceaeAzorhizobium
Proteomesi
  • UP000000270 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 236236LexA repressorPRO_1000070964Add
BLAST

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sitei122 – 1232Cleavage; by autolysisUniRule annotation

Keywords - PTMi

Autocatalytic cleavage

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi438753.AZC_2201.

Structurei

3D structure databases

ProteinModelPortaliA8I825.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase S24 family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105DS7. Bacteria.
COG1974. LUCA.
HOGENOMiHOG000232168.
KOiK01356.
OMAiGVNDHLK.
OrthoDBiEOG6JHRHJ.

Family and domain databases

Gene3Di1.10.10.10. 1 hit.
2.10.109.10. 1 hit.
HAMAPiMF_00015. LexA.
InterProiIPR006200. LexA.
IPR006199. LexA_DNA-bd_dom.
IPR028360. Peptidase_S24/S26_b-rbn.
IPR006197. Peptidase_S24_LexA.
IPR019759. Peptidase_S24_S26.
IPR015927. Peptidase_S24_S26A/B/C.
IPR011991. WHTH_DNA-bd_dom.
[Graphical view]
PfamiPF01726. LexA_DNA_bind. 1 hit.
PF00717. Peptidase_S24. 1 hit.
[Graphical view]
PRINTSiPR00726. LEXASERPTASE.
SUPFAMiSSF46785. SSF46785. 1 hit.
SSF51306. SSF51306. 1 hit.
TIGRFAMsiTIGR00498. lexA. 1 hit.

Sequencei

Sequence statusi: Complete.

A8I825-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MLTRKQYDLL RFIHERLKET GVPPSFDEMK EALDLRSKSG IHRLITALEE
60 70 80 90 100
RGFIRRLPNR ARALEVVRLP DSAAPGLAAA RSGGRGFSPS VIEGSLGRVR
110 120 130 140 150
PVVDDEEPAA VVAVPVMGRI AAGSPISAIQ TRSNTLNLPP EMLGTGEHFA
160 170 180 190 200
LEVRGDSMIE AGILDGDTVL IRKCDTADTG DIIVALVDDE EATLKRLRRK
210 220 230
GASIALEAAN PAYETRIFGP DRVRIQGRLV GLIRRY
Length:236
Mass (Da):25,740
Last modified:December 4, 2007 - v1
Checksum:i646B2187ABF24E91
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AP009384 Genomic DNA. Translation: BAF88199.1.
RefSeqiWP_012170728.1. NC_009937.1.

Genome annotation databases

EnsemblBacteriaiBAF88199; BAF88199; AZC_2201.
KEGGiazc:AZC_2201.
PATRICi21021097. VBIAzoCau17976_2305.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AP009384 Genomic DNA. Translation: BAF88199.1.
RefSeqiWP_012170728.1. NC_009937.1.

3D structure databases

ProteinModelPortaliA8I825.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi438753.AZC_2201.

Protein family/group databases

MEROPSiS24.001.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAF88199; BAF88199; AZC_2201.
KEGGiazc:AZC_2201.
PATRICi21021097. VBIAzoCau17976_2305.

Phylogenomic databases

eggNOGiENOG4105DS7. Bacteria.
COG1974. LUCA.
HOGENOMiHOG000232168.
KOiK01356.
OMAiGVNDHLK.
OrthoDBiEOG6JHRHJ.

Enzyme and pathway databases

BioCyciACAU438753:GJF3-2229-MONOMER.

Family and domain databases

Gene3Di1.10.10.10. 1 hit.
2.10.109.10. 1 hit.
HAMAPiMF_00015. LexA.
InterProiIPR006200. LexA.
IPR006199. LexA_DNA-bd_dom.
IPR028360. Peptidase_S24/S26_b-rbn.
IPR006197. Peptidase_S24_LexA.
IPR019759. Peptidase_S24_S26.
IPR015927. Peptidase_S24_S26A/B/C.
IPR011991. WHTH_DNA-bd_dom.
[Graphical view]
PfamiPF01726. LexA_DNA_bind. 1 hit.
PF00717. Peptidase_S24. 1 hit.
[Graphical view]
PRINTSiPR00726. LEXASERPTASE.
SUPFAMiSSF46785. SSF46785. 1 hit.
SSF51306. SSF51306. 1 hit.
TIGRFAMsiTIGR00498. lexA. 1 hit.
ProtoNetiSearch...

Publicationsi

  1. "Complete genome sequence of the nitrogen-fixing bacterium Azorhizobium caulinodans ORS571."
    Lee K.B., Backer P.D., Aono T., Liu C.T., Suzuki S., Suzuki T., Kaneko T., Yamada M., Tabata S., Kupfer D.M., Najar F.Z., Wiley G.B., Roe B., Binnewies T., Ussery D., Vereecke D., Gevers D., Holsters M., Oyaizu H.
    Submitted (APR-2007) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 43989 / DSM 5975 / JCM 20966 / NBRC 14845 / NCIMB 13405 / ORS 571.

Entry informationi

Entry nameiLEXA_AZOC5
AccessioniPrimary (citable) accession number: A8I825
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 26, 2008
Last sequence update: December 4, 2007
Last modified: April 13, 2016
This is version 57 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Peptidase families
    Classification of peptidase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.