ID   LSPA_CLOTE              Reviewed;         156 AA.
AC   Q894D4;
DT   29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   03-AUG-2022, entry version 105.
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=CTC_01615;
OS   Clostridium tetani (strain Massachusetts / E88).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Clostridiaceae;
OC   Clostridium.
OX   NCBI_TaxID=212717;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Massachusetts / E88;
RX   PubMed=12552129; DOI=10.1073/pnas.0335853100;
RA   Brueggemann H., Baeumer S., Fricke W.F., Wiezer A., Liesegang H.,
RA   Decker I., Herzberg C., Martinez-Arias R., Merkl R., Henne A.,
RA   Gottschalk G.;
RT   "The genome sequence of Clostridium tetani, the causative agent of tetanus
RT   disease.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:1316-1321(2003).
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 membrane {ECO:0000255|HAMAP-Rule:MF_00161};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_00161}.
CC   -!- SIMILARITY: Belongs to the peptidase A8 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00161}.
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DR   EMBL; AE015927; AAO36158.1; -; Genomic_DNA.
DR   RefSeq; WP_011099818.1; NC_004557.1.
DR   AlphaFoldDB; Q894D4; -.
DR   SMR; Q894D4; -.
DR   STRING; 212717.CTC_01615; -.
DR   EnsemblBacteria; AAO36158; AAO36158; CTC_01615.
DR   GeneID; 64179462; -.
DR   KEGG; ctc:CTC_01615; -.
DR   HOGENOM; CLU_083252_3_4_9; -.
DR   OMA; NRWYFPA; -.
DR   OrthoDB; 1575081at2; -.
DR   UniPathway; UPA00665; -.
DR   Proteomes; UP000001412; 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 membrane; Hydrolase; Membrane; Protease;
KW   Reference proteome; Transmembrane; Transmembrane helix.
FT   CHAIN           1..156
FT                   /note="Lipoprotein signal peptidase"
FT                   /id="PRO_0000289370"
FT   TRANSMEM        57..77
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   TRANSMEM        83..103
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   TRANSMEM        124..144
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   ACT_SITE        110
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
FT   ACT_SITE        129
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00161"
SQ   SEQUENCE   156 AA;  18154 MW;  A2F51DA005BED553 CRC64;
     MEIIIIVLGI ILDRVTKLWA IKRLSIGEDI VVIKDFFSFS YLENRGAAFG IFKDKQLFLI
     SITMVAILLM MFYLFINKTN PKILKISLSL IISGAIGNLI DRIKYRYVVD FIFFHYKDKY
     HFPIFNIADV LVSLGTILLI IFIIKEDGYE DRKIFS