ID   LSPA_SALCH              Reviewed;         166 AA.
AC   Q57TL4;
DT   29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT   10-MAY-2005, sequence version 1.
DT   03-AUG-2022, entry version 87.
DE   RecName: Full=Lipoprotein signal peptidase {ECO:0000255|HAMAP-Rule:MF_00161};
DE            EC=3.4.23.36 {ECO:0000255|HAMAP-Rule:MF_00161};
DE   AltName: Full=Prolipoprotein signal peptidase {ECO:0000255|HAMAP-Rule:MF_00161};
DE   AltName: Full=Signal peptidase II {ECO:0000255|HAMAP-Rule:MF_00161};
DE            Short=SPase II {ECO:0000255|HAMAP-Rule:MF_00161};
GN   Name=lspA {ECO:0000255|HAMAP-Rule:MF_00161}; OrderedLocusNames=SCH_0041;
OS   Salmonella choleraesuis (strain SC-B67).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=321314;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SC-B67;
RX   PubMed=15781495; DOI=10.1093/nar/gki297;
RA   Chiu C.-H., Tang P., Chu C., Hu S., Bao Q., Yu J., Chou Y.-Y., Wang H.-S.,
RA   Lee Y.-S.;
RT   "The genome sequence of Salmonella enterica serovar Choleraesuis, a highly
RT   invasive and resistant zoonotic pathogen.";
RL   Nucleic Acids Res. 33:1690-1698(2005).
CC   -!- FUNCTION: This protein specifically catalyzes the removal of signal
CC       peptides from prolipoproteins. {ECO:0000255|HAMAP-Rule:MF_00161}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Release of signal peptides from bacterial membrane
CC         prolipoproteins. Hydrolyzes -Xaa-Yaa-Zaa-|-(S,diacylglyceryl)Cys-, in
CC         which Xaa is hydrophobic (preferably Leu), and Yaa (Ala or Ser) and
CC         Zaa (Gly or Ala) have small, neutral side chains.; EC=3.4.23.36;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00161};
CC   -!- PATHWAY: Protein modification; lipoprotein biosynthesis (signal peptide
CC       cleavage). {ECO:0000255|HAMAP-Rule:MF_00161}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00161}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00161}.
CC   -!- SIMILARITY: Belongs to the peptidase A8 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00161}.
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DR   EMBL; AE017220; AAX63947.1; -; Genomic_DNA.
DR   RefSeq; WP_000042739.1; NC_006905.1.
DR   AlphaFoldDB; Q57TL4; -.
DR   SMR; Q57TL4; -.
DR   MEROPS; A08.001; -.
DR   EnsemblBacteria; AAX63947; AAX63947; SCH_0041.
DR   KEGG; sec:SCH_0041; -.
DR   HOGENOM; CLU_083252_4_0_6; -.
DR   OMA; NRWYFPA; -.
DR   UniPathway; UPA00665; -.
DR   Proteomes; UP000000538; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0004190; F:aspartic-type endopeptidase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR   HAMAP; MF_00161; LspA; 1.
DR   InterPro; IPR001872; Peptidase_A8.
DR   PANTHER; PTHR33695; PTHR33695; 1.
DR   Pfam; PF01252; Peptidase_A8; 1.
DR   PRINTS; PR00781; LIPOSIGPTASE.
DR   TIGRFAMs; TIGR00077; lspA; 1.
DR   PROSITE; PS00855; SPASE_II; 1.
PE   3: Inferred from homology;
KW   Aspartyl protease; Cell inner membrane; Cell membrane; Hydrolase; Membrane;
KW   Protease; Transmembrane; Transmembrane helix.
FT   CHAIN           1..166
FT                   /note="Lipoprotein signal peptidase"
FT                   /id="PRO_0000289418"
FT   TRANSMEM        12..32
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   TRANSMEM        70..90
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   TRANSMEM        102..122
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   TRANSMEM        137..157
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   ACT_SITE        123
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   ACT_SITE        141
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
SQ   SEQUENCE   166 AA;  18339 MW;  CEDFB73FF9B924A0 CRC64;
     MSKPLCSTGL RWLWLVVVVL IIDLGSKYLI LQNFALGDTV GLFPSLNLHY ARNYGAAFSF
     LADSGGWQRW FFAGIAIGIC VILLVMMYRS KATQKLNNIA YALIIGGALG NLFDRLWHGF
     VVDMIDFYVG NWHFATFNLA DSAICIGAAL IVLEGFLPKP TAKEQA