ID SEC11_OGAPD Reviewed; 176 AA.
AC E7R7C4; W1QE96;
DT 21-SEP-2011, integrated into UniProtKB/Swiss-Prot.
DT 05-APR-2011, sequence version 1.
DT 27-MAR-2024, entry version 58.
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=HPODL_04472;
OS Ogataea parapolymorpha (strain ATCC 26012 / BCRC 20466 / JCM 22074 / NRRL
OS Y-7560 / DL-1) (Yeast) (Hansenula polymorpha).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Pichiaceae; Ogataea.
OX NCBI_TaxID=871575;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 26012 / BCRC 20466 / JCM 22074 / NRRL Y-7560 / DL-1;
RX PubMed=24279325; DOI=10.1186/1471-2164-14-837;
RA Ravin N.V., Eldarov M.A., Kadnikov V.V., Beletsky A.V., Schneider J.,
RA Mardanova E.S., Smekalova E.M., Zvereva M.I., Dontsova O.A., Mardanov A.V.,
RA Skryabin K.G.;
RT "Genome sequence and analysis of methylotrophic yeast Hansenula polymorpha
RT DL1.";
RL BMC Genomics 14:837-837(2013).
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; AEOI02000008; ESW98869.1; -; Genomic_DNA.
DR RefSeq; XP_013934752.1; XM_014079277.1.
DR AlphaFoldDB; E7R7C4; -.
DR SMR; E7R7C4; -.
DR STRING; 871575.E7R7C4; -.
DR GeneID; 25773900; -.
DR KEGG; opa:HPODL_04472; -.
DR eggNOG; KOG3342; Eukaryota.
DR HOGENOM; CLU_089996_0_0_1; -.
DR OMA; DNNHIDD; -.
DR OrthoDB; 1114626at2759; -.
DR Proteomes; UP000008673; Chromosome V.
DR GO; GO:0005789; C:endoplasmic reticulum membrane; IEA:UniProtKB-SubCell.
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; IPR019533; Peptidase_S26.
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 PRINTS; PR00728; SIGNALPTASE.
DR SUPFAM; SSF51306; LexA/Signal peptidase; 1.
DR PROSITE; PS00501; SPASE_I_1; 1.
PE 3: Inferred from homology;
KW Endoplasmic reticulum; Hydrolase; Membrane; Protease; Reference proteome;
KW Signal-anchor; Transmembrane; Transmembrane helix.
FT CHAIN 1..176
FT /note="Signal peptidase complex catalytic subunit SEC11"
FT /id="PRO_0000412349"
FT TOPO_DOM 1..9
FT /note="Cytoplasmic"
FT /evidence="ECO:0000305"
FT TRANSMEM 10..30
FT /note="Helical; Signal-anchor for type II membrane protein"
FT /evidence="ECO:0000255"
FT TOPO_DOM 31..176
FT /note="Lumenal"
FT /evidence="ECO:0000305"
FT REGION 162..173
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 118
FT /note="Charge relay system"
FT /evidence="ECO:0000250|UniProtKB:P15367"
SQ SEQUENCE 176 AA; 20150 MW; 1E2B9D861EA9AD51 CRC64;
MNLRQQLGSG LSMAMVLASA FAFWKLFSIV TMSNSPIVVV LSGSMEPAFQ RGDVLFLWNR
EEYVGVGDVV VYKLQEKDIP IVHRVVREHR VMEKDRKTKK KVQKQLLLTK GDNNERDDLP
LYAYGQQYLE RKKDILGRVF GYVPLVGYVT ILITENVYFK YALMALLGLS ALVQDE
//
