SC61A_HARAN
ID SC61A_HARAN Reviewed; 476 AA.
AC Q7T278;
DT 07-JUN-2004, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 3.
DT 25-MAY-2022, entry version 64.
DE RecName: Full=Protein transport protein Sec61 subunit alpha;
GN Name=sec61a;
OS Harpagifer antarcticus (Antarctic spiny plunderfish).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC Eupercaria; Perciformes; Notothenioidei; Harpagiferidae; Harpagifer.
OX NCBI_TaxID=43256;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA].
RC TISSUE=Liver;
RX PubMed=12771183; DOI=10.1242/jcs.00597;
RA Romisch K., Collie N., Soto N., Logue J., Lindsay M., Scheper W.,
RA Cheng C.-H.C.;
RT "Protein translocation across the endoplasmic reticulum membrane in cold-
RT adapted organisms.";
RL J. Cell Sci. 116:2875-2883(2003).
CC -!- FUNCTION: Plays a crucial role in the insertion of secretory and
CC membrane polypeptides into the ER. Required for assembly of membrane
CC and secretory proteins. Tightly associated with membrane-bound
CC ribosomes, either directly or through adapter proteins (By similarity).
CC Plays a role in pronephric kidney tubule development (By similarity).
CC {ECO:0000250, ECO:0000250|UniProtKB:P61620}.
CC -!- SUBUNIT: Heterotrimeric complex composed of SEC61-alpha, SEC61-beta and
CC SEC61-gamma. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Endoplasmic reticulum membrane
CC {ECO:0000250|UniProtKB:P61619}; Multi-pass membrane protein
CC {ECO:0000305}. Note=Localizes exclusively in granular structures in the
CC endoplasmic reticulum (ER). {ECO:0000250|UniProtKB:P61619}.
CC -!- SIMILARITY: Belongs to the SecY/SEC61-alpha family. {ECO:0000305}.
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DR EMBL; AY113840; AAM62135.1; -; mRNA.
DR AlphaFoldDB; Q7T278; -.
DR SMR; Q7T278; -.
DR GO; GO:0005789; C:endoplasmic reticulum membrane; ISS:UniProtKB.
DR GO; GO:0030176; C:integral component of endoplasmic reticulum membrane; ISS:UniProtKB.
DR GO; GO:0039019; P:pronephric nephron development; ISS:UniProtKB.
DR GO; GO:0045047; P:protein targeting to ER; ISS:UniProtKB.
DR Gene3D; 1.10.3370.10; -; 1.
DR InterPro; IPR002208; SecY/SEC61-alpha.
DR InterPro; IPR030659; SecY_CS.
DR InterPro; IPR023201; SecY_dom_sf.
DR InterPro; IPR019561; Translocon_Sec61/SecY_plug_dom.
DR PANTHER; PTHR10906; PTHR10906; 1.
DR Pfam; PF10559; Plug_translocon; 1.
DR Pfam; PF00344; SecY; 1.
DR PIRSF; PIRSF004557; SecY; 1.
DR SUPFAM; SSF103491; SSF103491; 1.
DR TIGRFAMs; TIGR00967; 3a0501s007; 1.
DR PROSITE; PS00755; SECY_1; 1.
DR PROSITE; PS00756; SECY_2; 1.
PE 2: Evidence at transcript level;
KW Developmental protein; Endoplasmic reticulum; Membrane; Protein transport;
KW Translocation; Transmembrane; Transmembrane helix; Transport.
FT INIT_MET 1
FT /note="Removed"
FT /evidence="ECO:0000250"
FT CHAIN 2..476
FT /note="Protein transport protein Sec61 subunit alpha"
FT /id="PRO_0000131803"
FT TOPO_DOM 2..33
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 34..53
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 54..76
FT /note="Lumenal"
FT /evidence="ECO:0000255"
FT TRANSMEM 77..96
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 97..117
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 118..138
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 139..144
FT /note="Lumenal"
FT /evidence="ECO:0000255"
FT TRANSMEM 145..165
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 166..172
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 173..193
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 194..240
FT /note="Lumenal"
FT /evidence="ECO:0000255"
FT TRANSMEM 241..261
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 262..288
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 289..309
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 310..354
FT /note="Lumenal"
FT /evidence="ECO:0000255"
FT TRANSMEM 355..375
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 376..420
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 421..441
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 442..445
FT /note="Lumenal"
FT /evidence="ECO:0000255"
FT TRANSMEM 446..462
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 463..476
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
SQ SEQUENCE 476 AA; 52268 MW; C8D8376DCC499C37 CRC64;
MGIKFLEVIK PFCAVLPEIQ KPERKIQFRE KVLWTAITLF IFLVCCQIPL FGIMSSDSAD
PFYWMRVILA SNRGTLMELG ISPIVTSGLI MQLLAGAKII EVGDTPKDRA LFNGAQKLFG
MIITIGQAIV YVMTGMYGDP SEMGAGICLL IIIQLFVAGL IVLLLDELLQ KGYGLGSGIS
LFIATNICET IVWKAFSPTT VNTGRGTEFE GAIIALFHLL ATRTDKVRAL REAFYRQNLP
NILNLIATVF VFAVVIYFQG FRVDLPIKSA RYRGQYNTYP IKLFYTSNIP IILQSALVSN
LYVISQMLST RFSGNFLVNL LGTWSDATSG GPARAYPVAG LCYYLSPPES FGSVLDDPVH
AAIYIVFMLG SCAFFSKTWI EVSGSSAKDV AKQLKEQQMV MRGHRETSMV HELNRYIPTA
AAFGGLCIGG LSVMADFLGA IGSGTGILLA VTIIYQYFEI FVKEQSEMGS MGALLF
