ID   LSPA_FRATH              Reviewed;         161 AA.
AC   Q2A4Z5;
DT   29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT   04-APR-2006, sequence version 1.
DT   03-AUG-2022, entry version 84.
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=FTL_0435;
OS   Francisella tularensis subsp. holarctica (strain LVS).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales;
OC   Francisellaceae; Francisella.
OX   NCBI_TaxID=376619;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=LVS;
RA   Chain P., Larimer F., Land M., Stilwagen S., Larsson P., Bearden S.,
RA   Chu M., Oyston P., Forsman M., Andersson S., Lindler L., Titball R.,
RA   Garcia E.;
RT   "Complete genome sequence of Francisella tularensis LVS (Live Vaccine
RT   Strain).";
RL   Submitted (MAR-2006) to the EMBL/GenBank/DDBJ databases.
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; AM233362; CAJ78875.1; -; Genomic_DNA.
DR   RefSeq; WP_003014705.1; NZ_CP009694.1.
DR   AlphaFoldDB; Q2A4Z5; -.
DR   SMR; Q2A4Z5; -.
DR   KEGG; ftl:FTL_0435; -.
DR   OMA; NRWYFPA; -.
DR   UniPathway; UPA00665; -.
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..161
FT                   /note="Lipoprotein signal peptidase"
FT                   /id="PRO_0000289379"
FT   TRANSMEM        8..28
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   TRANSMEM        40..60
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   TRANSMEM        67..87
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   TRANSMEM        91..111
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   TRANSMEM        136..156
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   ACT_SITE        122
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   ACT_SITE        140
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
SQ   SEQUENCE   161 AA;  18181 MW;  F3E5194B95D253FB CRC64;
     MNLLRPKLKY FILAILIIAA DLYTKYLANT YLEFAQSLKI TSFFNLTLLY NHGAAFSLLS
     NDQTSWQMIM FSTISLIAAI VLIYLIIKQP ITEKINLFSF ALILGGALGN FYDRAFQGYV
     IDFLDFHIGN YHWPSFNIAD SAITCGVVIL IAASLFTKKK S