ID   MUCA_SALTM              Reviewed;         146 AA.
AC   P0A275; P07376; P14302;
DT   01-APR-1988, integrated into UniProtKB/Swiss-Prot.
DT   15-MAR-2005, sequence version 1.
DT   03-AUG-2022, entry version 73.
DE   RecName: Full=Protein MucA;
DE            EC=3.4.21.-;
DE   Contains:
DE     RecName: Full=Protein MucA';
GN   Name=mucA;
OS   Salmonella typhimurium.
OG   Plasmid IncN R46.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=90371;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Hall R.M., Vockler C.;
RL   Submitted (SEP-1989) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Involved in UV protection and mutation. {ECO:0000250}.
CC   -!- MISCELLANEOUS: The mucAB operon is the plasmid-borne analog of the
CC       E.coli umuDC operon.
CC   -!- SIMILARITY: Belongs to the peptidase S24 family. {ECO:0000305}.
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DR   EMBL; X16596; CAA34606.1; -; Genomic_DNA.
DR   PIR; S06775; S06775.
DR   RefSeq; NP_511216.1; NC_003292.1.
DR   RefSeq; WP_000861760.1; NZ_MN241904.1.
DR   AlphaFoldDB; P0A275; -.
DR   SMR; P0A275; -.
DR   MEROPS; S24.003; -.
DR   GeneID; 64209521; -.
DR   PRO; PR:P0A275; -.
DR   GO; GO:0003677; F:DNA binding; IEA:InterPro.
DR   GO; GO:0008236; F:serine-type peptidase activity; IEA:UniProtKB-KW.
DR   GO; GO:0006281; P:DNA repair; IEA:UniProtKB-KW.
DR   GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR   GO; GO:0006355; P:regulation of transcription, DNA-templated; IEA:InterPro.
DR   GO; GO:0009432; P:SOS response; IEA:UniProtKB-KW.
DR   CDD; cd06529; S24_LexA-like; 1.
DR   InterPro; IPR039418; LexA-like.
DR   InterPro; IPR036286; LexA/Signal_pep-like_sf.
DR   InterPro; IPR006197; Peptidase_S24_LexA.
DR   InterPro; IPR015927; Peptidase_S24_S26A/B/C.
DR   Pfam; PF00717; Peptidase_S24; 1.
DR   PRINTS; PR00726; LEXASERPTASE.
DR   SUPFAM; SSF51306; SSF51306; 1.
PE   3: Inferred from homology;
KW   Autocatalytic cleavage; DNA damage; DNA repair; Hydrolase; Plasmid;
KW   Protease; Serine protease; SOS mutagenesis; SOS response.
FT   CHAIN           1..146
FT                   /note="Protein MucA"
FT                   /id="PRO_0000041986"
FT   CHAIN           27..146
FT                   /note="Protein MucA'"
FT                   /id="PRO_0000027301"
FT   ACT_SITE        62
FT                   /note="For autocatalytic cleavage activity"
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        99
FT                   /note="For autocatalytic cleavage activity"
FT                   /evidence="ECO:0000250"
FT   SITE            26..27
FT                   /note="Cleavage; by autolysis"
SQ   SEQUENCE   146 AA;  16527 MW;  7605A681F8345E76 CRC64;
     MKVDIFESSG ASRVHSIPFY LQRISAGFPS PAQGYEKQEL NLHEYCVRHP SATYFLRVSG
     SSMEDGRIHD GDVLVVDRSL TASHGSIVVA CIHNEFTVKR LLLRPRPCLM PMNKDFPVYY
     IDPDNESVEI WGVVTHSLIE HPVCLR