SEC11_CANDC
ID SEC11_CANDC Reviewed; 166 AA.
AC B9WKT4;
DT 21-SEP-2011, integrated into UniProtKB/Swiss-Prot.
DT 24-MAR-2009, sequence version 1.
DT 03-AUG-2022, entry version 64.
DE RecName: Full=Signal peptidase complex catalytic subunit SEC11;
DE EC=3.4.21.89 {ECO:0000250|UniProtKB:P15367};
DE AltName: Full=Signal peptidase I;
GN Name=SEC11; ORFNames=CD36_25990;
OS Candida dubliniensis (strain CD36 / ATCC MYA-646 / CBS 7987 / NCPF 3949 /
OS NRRL Y-17841) (Yeast).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Debaryomycetaceae; Candida/Lodderomyces clade; Candida.
OX NCBI_TaxID=573826;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CD36 / ATCC MYA-646 / CBS 7987 / NCPF 3949 / NRRL Y-17841;
RX PubMed=19745113; DOI=10.1101/gr.097501.109;
RA Jackson A.P., Gamble J.A., Yeomans T., Moran G.P., Saunders D., Harris D.,
RA Aslett M., Barrell J.F., Butler G., Citiulo F., Coleman D.C.,
RA de Groot P.W.J., Goodwin T.J., Quail M.A., McQuillan J., Munro C.A.,
RA Pain A., Poulter R.T., Rajandream M.A., Renauld H., Spiering M.J.,
RA Tivey A., Gow N.A.R., Barrell B., Sullivan D.J., Berriman M.;
RT "Comparative genomics of the fungal pathogens Candida dubliniensis and
RT Candida albicans.";
RL Genome Res. 19:2231-2244(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; FM992695; CAX39634.1; -; Genomic_DNA.
DR RefSeq; XP_002421695.1; XM_002421650.1.
DR AlphaFoldDB; B9WKT4; -.
DR SMR; B9WKT4; -.
DR STRING; 42374.XP_002421695.1; -.
DR MEROPS; S26.010; -.
DR EnsemblFungi; CAX39634; CAX39634; CD36_25990.
DR GeneID; 8049800; -.
DR KEGG; cdu:CD36_25990; -.
DR CGD; CAL0000163475; Cd36_25990.
DR VEuPathDB; FungiDB:CD36_25990; -.
DR eggNOG; KOG3342; Eukaryota.
DR HOGENOM; CLU_089996_0_1_1; -.
DR OrthoDB; 1486616at2759; -.
DR Proteomes; UP000002605; Chromosome R.
DR GO; GO:0005789; C:endoplasmic reticulum membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0004252; F:serine-type endopeptidase activity; IEA:UniProtKB-EC.
DR GO; GO:0006465; P:signal peptide processing; IEA:InterPro.
DR CDD; cd06530; S26_SPase_I; 1.
DR InterPro; IPR036286; LexA/Signal_pep-like_sf.
DR InterPro; IPR019756; Pept_S26A_signal_pept_1_Ser-AS.
DR InterPro; IPR015927; Peptidase_S24_S26A/B/C.
DR InterPro; IPR019533; Peptidase_S26.
DR InterPro; IPR001733; Peptidase_S26B.
DR PANTHER; PTHR10806; PTHR10806; 1.
DR Pfam; PF00717; Peptidase_S24; 1.
DR PRINTS; PR00728; SIGNALPTASE.
DR SUPFAM; SSF51306; SSF51306; 1.
DR TIGRFAMs; TIGR02228; sigpep_I_arch; 1.
DR PROSITE; PS00501; SPASE_I_1; 1.
DR PROSITE; PS00761; SPASE_I_3; 1.
PE 3: Inferred from homology;
KW Endoplasmic reticulum; Hydrolase; Membrane; Protease; Signal-anchor;
KW Transmembrane; Transmembrane helix.
FT CHAIN 1..166
FT /note="Signal peptidase complex catalytic subunit SEC11"
FT /id="PRO_0000412321"
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..166
FT /note="Lumenal"
FT /evidence="ECO:0000255"
FT REGION 152..163
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 108
FT /note="Charge relay system"
FT /evidence="ECO:0000250|UniProtKB:P15367"
SQ SEQUENCE 166 AA; 18855 MW; 8F976C420770400A CRC64;
MNIRQQITQF LSLAYVFSSA FMLWKTLSVI ANSHSPIVVV LSGSMEPAFQ RGDILFLWNR
DQQQKVGDIV VYEIDGKTIP IVHRVLREHH NQQKQLLLTK GDNNAVDDLS LYAKKQQYLN
QKADLVGTVK GYLPFIGYVT ILISENVYFK YGMLGLLGLS SLFSNE
