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SC11C_RAT
ID   SC11C_RAT               Reviewed;         192 AA.
AC   Q9WTR7;
DT   02-NOV-2001, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 125.
DE   RecName: Full=Signal peptidase complex catalytic subunit SEC11C;
DE            EC=3.4.21.89 {ECO:0000250|UniProtKB:Q9BY50};
DE   AltName: Full=Microsomal signal peptidase 21 kDa subunit;
DE            Short=SPase 21 kDa subunit;
DE   AltName: Full=SEC11 homolog C;
DE   AltName: Full=SEC11-like protein 3;
DE   AltName: Full=SPC21;
GN   Name=Sec11c; Synonyms=Sec11l3, Spc21;
OS   Rattus norvegicus (Rat).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae;
OC   Murinae; Rattus.
OX   NCBI_TaxID=10116;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   STRAIN=Sprague-Dawley; TISSUE=Pituitary;
RA   Shiizaki K.;
RT   "Rat mRNA homologous to signal peptidase.";
RL   Submitted (JAN-1999) to the EMBL/GenBank/DDBJ databases.
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. Specifically cleaves N-terminal signal peptides
CC       that contain a hydrophobic alpha-helix (h-region) shorter than 18-20
CC       amino acids. {ECO:0000250|UniProtKB:Q9BY50}.
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:Q9BY50};
CC   -!- SUBUNIT: Component of the signal peptidase complex paralog C (SPC-C)
CC       composed of a catalytic subunit SEC11C and three accessory subunits
CC       SPCS1, SPCS2 and SPCS3. Within the complex, interacts with SPCS2 and
CC       SPCS3. The complex induces a local thinning of the ER membrane which is
CC       used to measure the length of the signal peptide (SP) h-region of
CC       protein substrates. This ensures the selectivity of the complex towards
CC       h-regions shorter than 18-20 amino acids.
CC       {ECO:0000250|UniProtKB:Q9BY50}.
CC   -!- SUBCELLULAR LOCATION: Endoplasmic reticulum membrane
CC       {ECO:0000250|UniProtKB:P13679}; Single-pass type II membrane protein
CC       {ECO:0000250|UniProtKB:P13679}.
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:Q9BY50}.
CC   -!- PTM: May undergo processing at the N-terminus.
CC       {ECO:0000250|UniProtKB:Q9BY50}.
CC   -!- SIMILARITY: Belongs to the peptidase S26B family. {ECO:0000305}.
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DR   EMBL; AB022714; BAA76439.1; -; mRNA.
DR   RefSeq; NP_705892.1; NM_153628.2.
DR   AlphaFoldDB; Q9WTR7; -.
DR   SMR; Q9WTR7; -.
DR   STRING; 10116.ENSRNOP00000022958; -.
DR   MEROPS; S26.010; -.
DR   jPOST; Q9WTR7; -.
DR   PaxDb; Q9WTR7; -.
DR   PRIDE; Q9WTR7; -.
DR   GeneID; 266758; -.
DR   KEGG; rno:266758; -.
DR   UCSC; RGD:628665; rat.
DR   CTD; 90701; -.
DR   RGD; 628665; Sec11c.
DR   eggNOG; KOG3342; Eukaryota.
DR   InParanoid; Q9WTR7; -.
DR   OrthoDB; 1486616at2759; -.
DR   PhylomeDB; Q9WTR7; -.
DR   Reactome; R-RNO-422085; Synthesis, secretion, and deacylation of Ghrelin.
DR   PRO; PR:Q9WTR7; -.
DR   Proteomes; UP000002494; Unplaced.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005787; C:signal peptidase complex; ISS:UniProtKB.
DR   GO; GO:0008233; F:peptidase activity; IBA:GO_Central.
DR   GO; GO:0004252; F:serine-type endopeptidase activity; ISS:UniProtKB.
DR   GO; GO:0006465; P:signal peptide processing; ISS:UniProtKB.
DR   CDD; cd06530; S26_SPase_I; 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; IPR019533; Peptidase_S26.
DR   InterPro; IPR001733; Peptidase_S26B.
DR   InterPro; IPR037710; SEC11C.
DR   PANTHER; PTHR10806; PTHR10806; 1.
DR   PANTHER; PTHR10806:SF12; PTHR10806:SF12; 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   2: Evidence at transcript level;
KW   Endoplasmic reticulum; Hydrolase; Membrane; Protease; Reference proteome;
KW   Signal-anchor; Transmembrane; Transmembrane helix.
FT   CHAIN           1..192
FT                   /note="Signal peptidase complex catalytic subunit SEC11C"
FT                   /id="PRO_0000109551"
FT   TOPO_DOM        1..28
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000250|UniProtKB:P13679"
FT   TRANSMEM        29..48
FT                   /note="Helical; Signal-anchor for type II membrane protein"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        49..192
FT                   /note="Lumenal"
FT                   /evidence="ECO:0000250|UniProtKB:P13679"
FT   REGION          177..188
FT                   /note="C-terminal short (CTS) helix"
FT                   /evidence="ECO:0000250|UniProtKB:Q9BY50"
FT   ACT_SITE        68
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000250|UniProtKB:Q9BY50"
FT   ACT_SITE        108
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000250|UniProtKB:Q9BY50"
FT   ACT_SITE        134
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000250|UniProtKB:Q9BY50"
SQ   SEQUENCE   192 AA;  21646 MW;  6D4650314EA9DEF0 CRC64;
     MVRAGAVGTH LPTSSLDIFG DLRKMNKRQL YYQVLNFAMI VSSALMIWKG LIVLTGSESP
     IVVVLSGSME PAFHRGDLLF LTNFREDPIR AGEIVVFKVE GRDIPIVHRV IKVHEKDNGD
     IKFLTKGDNN EVDDRGLYKE GQNWLEKKDV VGRARGFLPY VGMVTIIMND YPKFKYALVA
     VMGAYVLLKR ES
 
 
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