SEC11_COCP7
ID SEC11_COCP7 Reviewed; 210 AA.
AC C5PA33;
DT 21-SEP-2011, integrated into UniProtKB/Swiss-Prot.
DT 01-SEP-2009, sequence version 1.
DT 03-AUG-2022, entry version 59.
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=CPC735_007680;
OS Coccidioides posadasii (strain C735) (Valley fever fungus).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Eurotiomycetidae; Onygenales; Onygenaceae; Coccidioides.
OX NCBI_TaxID=222929;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=C735;
RX PubMed=19717792; DOI=10.1101/gr.087551.108;
RA Sharpton T.J., Stajich J.E., Rounsley S.D., Gardner M.J., Wortman J.R.,
RA Jordar V.S., Maiti R., Kodira C.D., Neafsey D.E., Zeng Q., Hung C.-Y.,
RA McMahan C., Muszewska A., Grynberg M., Mandel M.A., Kellner E.M.,
RA Barker B.M., Galgiani J.N., Orbach M.J., Kirkland T.N., Cole G.T.,
RA Henn M.R., Birren B.W., Taylor J.W.;
RT "Comparative genomic analyses of the human fungal pathogens Coccidioides
RT and their relatives.";
RL Genome Res. 19:1722-1731(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; ACFW01000030; EER26595.1; -; Genomic_DNA.
DR RefSeq; XP_003068740.1; XM_003068694.1.
DR AlphaFoldDB; C5PA33; -.
DR SMR; C5PA33; -.
DR MEROPS; S26.010; -.
DR EnsemblFungi; EER26595; EER26595; CPC735_007680.
DR GeneID; 9694223; -.
DR KEGG; cpw:CPC735_007680; -.
DR VEuPathDB; FungiDB:CPC735_007680; -.
DR HOGENOM; CLU_089996_0_0_1; -.
DR Proteomes; UP000009084; Unassembled WGS sequence.
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 SUPFAM; SSF51306; SSF51306; 1.
DR TIGRFAMs; TIGR02228; sigpep_I_arch; 1.
DR PROSITE; PS00501; SPASE_I_1; 1.
PE 3: Inferred from homology;
KW Endoplasmic reticulum; Glycoprotein; Hydrolase; Membrane; Protease;
KW Signal-anchor; Transmembrane; Transmembrane helix.
FT CHAIN 1..210
FT /note="Signal peptidase complex catalytic subunit SEC11"
FT /id="PRO_0000412325"
FT TOPO_DOM 1..21
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 22..38
FT /note="Helical; Signal-anchor for type II membrane protein"
FT /evidence="ECO:0000255"
FT TOPO_DOM 39..210
FT /note="Lumenal"
FT /evidence="ECO:0000255"
FT REGION 196..207
FT /note="C-terminal short (CTS) helix"
FT /evidence="ECO:0000250|UniProtKB:P67812"
FT ACT_SITE 53
FT /note="Charge relay system"
FT /evidence="ECO:0000250|UniProtKB:P15367"
FT ACT_SITE 92
FT /note="Charge relay system"
FT /evidence="ECO:0000250|UniProtKB:P15367"
FT ACT_SITE 152
FT /note="Charge relay system"
FT /evidence="ECO:0000250|UniProtKB:P15367"
FT CARBOHYD 41
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
SQ SEQUENCE 210 AA; 23167 MW; B738A0935A280E02 CRC64;
MLAGLSPHLS NLRRSLTQVL NFALVLSTAF MMWKGLSIYT NSSSPIVVVL SGSMEPAFQR
GDLLFLWNRS PRAEVGEIVV YNVRGKDIPI VHRVVRAFGD DEKSPKETNG QKKKKVMSSV
KKDSIAAGAL HSDSALVSHR ILTKGDNNIA DDTELYAQGQ DYLDRKLDLV GSVRGYIPAV
GYVTIMLSEH PWLKTVLLGI MGAMVILQRE
