ID SEC11_YEAS8 Reviewed; 167 AA.
AC C8ZAS4;
DT 21-SEP-2011, integrated into UniProtKB/Swiss-Prot.
DT 03-NOV-2009, sequence version 1.
DT 13-SEP-2023, entry version 60.
DE RecName: Full=Signal peptidase complex catalytic subunit SEC11;
DE EC=3.4.21.89 {ECO:0000250|UniProtKB:P15367};
DE AltName: Full=Secretory protein 11;
DE AltName: Full=Signal peptidase I;
GN Name=SEC11; ORFNames=EC1118_1I12_2344g;
OS Saccharomyces cerevisiae (strain Lalvin EC1118 / Prise de mousse) (Baker's
OS yeast).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Saccharomyces.
OX NCBI_TaxID=643680;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Lalvin EC1118 / Prise de mousse;
RX PubMed=19805302; DOI=10.1073/pnas.0904673106;
RA Novo M., Bigey F., Beyne E., Galeote V., Gavory F., Mallet S., Cambon B.,
RA Legras J.-L., Wincker P., Casaregola S., Dequin S.;
RT "Eukaryote-to-eukaryote gene transfer events revealed by the genome
RT sequence of the wine yeast Saccharomyces cerevisiae EC1118.";
RL Proc. Natl. Acad. Sci. U.S.A. 106:16333-16338(2009).
CC -!- FUNCTION: Catalytic component of the signal peptidase complex (SPC)
CC which catalyzes the cleavage of N-terminal signal sequences from
CC nascent proteins as they are translocated into the lumen of the
CC endoplasmic reticulum (By similarity). Specifically cleaves N-terminal
CC signal peptides that contain a hydrophobic alpha-helix (h-region)
CC shorter than 18-20 amino acids (By similarity).
CC {ECO:0000250|UniProtKB:P15367, ECO:0000250|UniProtKB:P67812}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Cleavage of hydrophobic, N-terminal signal or leader sequences
CC from secreted and periplasmic proteins.; EC=3.4.21.89;
CC Evidence={ECO:0000250|UniProtKB:P15367};
CC -!- SUBUNIT: Component of the signal peptidase complex (SPC) composed of a
CC catalytic subunit SEC11 and three accessory subunits SPC1, SPC2 and
CC SPC3 (By similarity). The complex induces a local thinning of the ER
CC membrane which is used to measure the length of the signal peptide (SP)
CC h-region of protein substrates. This ensures the selectivity of the
CC complex towards h-regions shorter than 18-20 amino acids (By
CC similarity). SPC associates with the translocon complex (By
CC similarity). {ECO:0000250|UniProtKB:P15367,
CC ECO:0000250|UniProtKB:P67812}.
CC -!- SUBCELLULAR LOCATION: Endoplasmic reticulum membrane
CC {ECO:0000250|UniProtKB:P15367}; Single-pass type II membrane protein
CC {ECO:0000250|UniProtKB:P15367}.
CC -!- DOMAIN: The C-terminal short (CTS) helix is essential for catalytic
CC activity. It may be accommodated as a transmembrane helix in the
CC thinned membrane environment of the complex, similarly to the signal
CC peptide in the complex substrates. {ECO:0000250|UniProtKB:P67812}.
CC -!- SIMILARITY: Belongs to the peptidase S26B family. {ECO:0000305}.
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DR EMBL; FN393074; CAY80537.1; -; Genomic_DNA.
DR AlphaFoldDB; C8ZAS4; -.
DR SMR; C8ZAS4; -.
DR MEROPS; S26.010; -.
DR GlyCosmos; C8ZAS4; 1 site, No reported glycans.
DR HOGENOM; CLU_089996_0_0_1; -.
DR Proteomes; UP000000286; Chromosome IX, Scaffold EC1118_1I12.
DR GO; GO:0005787; C:signal peptidase complex; IEA:UniProt.
DR GO; GO:0004252; F:serine-type endopeptidase activity; IEA:UniProtKB-EC.
DR GO; GO:0006465; P:signal peptide processing; IEA:InterPro.
DR CDD; cd06462; Peptidase_S24_S26; 1.
DR InterPro; IPR036286; LexA/Signal_pep-like_sf.
DR InterPro; IPR019758; Pept_S26A_signal_pept_1_CS.
DR InterPro; IPR019756; Pept_S26A_signal_pept_1_Ser-AS.
DR InterPro; IPR015927; Peptidase_S24_S26A/B/C.
DR InterPro; IPR001733; Peptidase_S26B.
DR NCBIfam; TIGR02228; sigpep_I_arch; 1.
DR PANTHER; PTHR10806; SIGNAL PEPTIDASE COMPLEX CATALYTIC SUBUNIT SEC11; 1.
DR PANTHER; PTHR10806:SF6; SIGNAL PEPTIDASE COMPLEX CATALYTIC SUBUNIT SEC11; 1.
DR Pfam; PF00717; Peptidase_S24; 1.
DR PRINTS; PR00728; SIGNALPTASE.
DR SUPFAM; SSF51306; LexA/Signal peptidase; 1.
DR PROSITE; PS00501; SPASE_I_1; 1.
DR PROSITE; PS00761; SPASE_I_3; 1.
PE 3: Inferred from homology;
KW Endoplasmic reticulum; Glycoprotein; Hydrolase; Membrane; Protease;
KW Signal-anchor; Transmembrane; Transmembrane helix.
FT CHAIN 1..167
FT /note="Signal peptidase complex catalytic subunit SEC11"
FT /id="PRO_0000412357"
FT TOPO_DOM 1..9
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 10..30
FT /note="Helical; Signal-anchor for type II membrane protein"
FT /evidence="ECO:0000255"
FT TOPO_DOM 31..167
FT /note="Lumenal"
FT /evidence="ECO:0000255"
FT REGION 153..164
FT /note="C-terminal short (CTS) helix"
FT /evidence="ECO:0000250|UniProtKB:P67812"
FT ACT_SITE 44
FT /note="Charge relay system"
FT /evidence="ECO:0000250|UniProtKB:P15367"
FT ACT_SITE 83
FT /note="Charge relay system"
FT /evidence="ECO:0000250|UniProtKB:P15367"
FT ACT_SITE 109
FT /note="Charge relay system"
FT /evidence="ECO:0000250|UniProtKB:P15367"
FT CARBOHYD 121
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
SQ SEQUENCE 167 AA; 18762 MW; FC877232D6888DF3 CRC64;
MNLRFELQKL LNVCFLFASA YMFWQGLAIA TNSASPIVVV LSGSMEPAFQ RGDILFLWNR
NTFNQVGDVV VYEVEGKQIP IVHRVLRQHN NHADKQFLLT KGDNNAGNDI SLYANKKIYL
NKSKEIVGTV KGYFPQLGYI TIWISENKYA KFALLGMLGL SALLGGE
//
