ID E4XE25_OIKDI Unreviewed; 252 AA.
AC E4XE25;
DT 08-FEB-2011, integrated into UniProtKB/TrEMBL.
DT 08-FEB-2011, sequence version 1.
DT 24-JAN-2024, entry version 31.
DE RecName: Full=Translocon-associated protein subunit alpha {ECO:0000256|ARBA:ARBA00020280};
DE AltName: Full=Signal sequence receptor subunit alpha {ECO:0000256|ARBA:ARBA00031071};
GN ORFNames=GSOID_T00008427001 {ECO:0000313|EMBL:CBY19415.1},
GN GSOID_T00026705001 {ECO:0000313|EMBL:CBY42967.1};
OS Oikopleura dioica (Tunicate).
OC Eukaryota; Metazoa; Chordata; Tunicata; Appendicularia; Copelata;
OC Oikopleuridae; Oikopleura.
OX NCBI_TaxID=34765 {ECO:0000313|EMBL:CBY19415.1};
RN [1] {ECO:0000313|EMBL:CBY19415.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=21097902; DOI=10.1126/science.1194167;
RA Denoeud F., Henriet S., Mungpakdee S., Aury J.M., Da Silva C.,
RA Brinkmann H., Mikhaleva J., Olsen L.C., Jubin C., Canestro C.,
RA Bouquet J.M., Danks G., Poulain J., Campsteijn C., Adamski M., Cross I.,
RA Yadetie F., Muffato M., Louis A., Butcher S., Tsagkogeorga G., Konrad A.,
RA Singh S., Jensen M.F., Cong E.H., Eikeseth-Otteraa H., Noel B.,
RA Anthouard V., Porcel B.M., Kachouri-Lafond R., Nishino A., Ugolini M.,
RA Chourrout P., Nishida H., Aasland R., Huzurbazar S., Westhof E., Delsuc F.,
RA Lehrach H., Reinhardt R., Weissenbach J., Roy S.W., Artiguenave F.,
RA Postlethwait J.H., Manak J.R., Thompson E.M., Jaillon O., Du Pasquier L.,
RA Boudinot P., Liberles D.A., Volff J.N., Philippe H., Lenhard B.,
RA Roest Crollius H., Wincker P., Chourrout D.;
RT "Plasticity of animal genome architecture unmasked by rapid evolution of a
RT pelagic tunicate.";
RL Science 330:1381-1385(2010).
CC -!- FUNCTION: TRAP proteins are part of a complex whose function is to bind
CC calcium to the ER membrane and thereby regulate the retention of ER
CC resident proteins. May be involved in the recycling of the
CC translocation apparatus after completion of the translocation process
CC or may function as a membrane-bound chaperone facilitating folding of
CC translocated proteins. {ECO:0000256|ARBA:ARBA00025620}.
CC -!- SUBUNIT: Heterotetramer of TRAP-alpha, TRAP-beta, TRAP-delta and TRAP-
CC gamma. Interacts with palmitoylated calnexin (CALX), the interaction is
CC required for efficient folding of glycosylated proteins.
CC {ECO:0000256|ARBA:ARBA00025854}.
CC -!- SUBCELLULAR LOCATION: Endoplasmic reticulum membrane
CC {ECO:0000256|ARBA:ARBA00004115}; Single-pass type I membrane protein
CC {ECO:0000256|ARBA:ARBA00004115}. Membrane
CC {ECO:0000256|ARBA:ARBA00004479}; Single-pass type I membrane protein
CC {ECO:0000256|ARBA:ARBA00004479}.
CC -!- SIMILARITY: Belongs to the TRAP-alpha family.
CC {ECO:0000256|ARBA:ARBA00006776}.
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DR EMBL; FN653040; CBY19415.1; -; Genomic_DNA.
DR EMBL; FN657694; CBY42967.1; -; Genomic_DNA.
DR AlphaFoldDB; E4XE25; -.
DR InParanoid; E4XE25; -.
DR Proteomes; UP000001307; Unassembled WGS sequence.
DR Proteomes; UP000011014; Unassembled WGS sequence.
DR GO; GO:0005789; C:endoplasmic reticulum membrane; IEA:UniProtKB-SubCell.
DR InterPro; IPR005595; TRAP_alpha.
DR PANTHER; PTHR12924:SF0; TRANSLOCON-ASSOCIATED PROTEIN SUBUNIT ALPHA; 1.
DR PANTHER; PTHR12924; TRANSLOCON-ASSOCIATED PROTEIN, ALPHA SUBUNIT; 1.
DR Pfam; PF03896; TRAP_alpha; 1.
PE 3: Inferred from homology;
KW Endoplasmic reticulum {ECO:0000256|ARBA:ARBA00022824};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|SAM:Phobius};
KW Reference proteome {ECO:0000313|Proteomes:UP000001307};
KW Signal {ECO:0000256|ARBA:ARBA00022729, ECO:0000256|SAM:SignalP};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|SAM:Phobius}.
FT SIGNAL 1..21
FT /evidence="ECO:0000256|SAM:SignalP"
FT CHAIN 22..252
FT /note="Translocon-associated protein subunit alpha"
FT /evidence="ECO:0000256|SAM:SignalP"
FT /id="PRO_5007653909"
FT TRANSMEM 185..203
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT REGION 229..252
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 231..252
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 252 AA; 27748 MW; 23C7A27DE2A1A5D2 CRC64;
MKLLRRMLPI AILGLALVAK AEEFDEEIGD DTVQVNEVLD EDEGEDMGIV DEEESEVQIN
TYWPEATITA GKVSEVLVSV KVASSAMNRY QFGIIEGGFH FPQDQSYKVQ NFSSIKYNRD
LGSGQEATFL YPFVAAELAG GRSYGLQINL AYEADSSPPR QLFASVVNQT VEVNENLDNA
AAEQFFIFMT FAAFAAIGFF FFASKFSSKK PKAAPVEVGT GGAADASWIP EIHMKKSDTP
KTSPQSRRRK VD
//