ID   SECY_EMIHU              Reviewed;         422 AA.
AC   Q4G351;
DT   14-DEC-2011, integrated into UniProtKB/Swiss-Prot.
DT   30-AUG-2005, sequence version 1.
DT   03-AUG-2022, entry version 54.
DE   RecName: Full=Protein translocase subunit SecY;
GN   Name=secY;
OS   Emiliania huxleyi (Coccolithophore) (Pontosphaera huxleyi).
OG   Plastid; Chloroplast.
OC   Eukaryota; Haptista; Haptophyta; Prymnesiophyceae; Isochrysidales;
OC   Noelaerhabdaceae; Emiliania.
OX   NCBI_TaxID=2903;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CCMP373 / CSIRO-CS-57 / BT6;
RX   PubMed=16303746; DOI=10.1093/dnares/12.2.151;
RA   Sanchez-Puerta M.V., Bachvaroff T.R., Delwiche C.F.;
RT   "The complete plastid genome sequence of the haptophyte Emiliania huxleyi:
RT   a comparison to other plastid genomes.";
RL   DNA Res. 12:151-156(2005).
CC   -!- FUNCTION: The central subunit of the protein translocation channel
CC       SecYE. Consists of two halves formed by TMs 1-5 and 6-10. These two
CC       domains form a lateral gate at the front which open onto the bilayer
CC       between TMs 2 and 7, and are clamped together by SecE at the back. The
CC       channel is closed by both a pore ring composed of hydrophobic SecY
CC       resides and a short helix (helix 2A) on the extracellular side of the
CC       membrane which forms a plug (By similarity). {ECO:0000250}.
CC   -!- SUBUNIT: Component of the plastid Sec protein translocase complex,
CC       which is composed of at least SecY, SecE and SecG. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250}; Multi-pass membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the SecY/SEC61-alpha family. {ECO:0000305}.
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DR   EMBL; AY741371; AAX13915.1; -; Genomic_DNA.
DR   RefSeq; YP_277416.1; NC_007288.1.
DR   AlphaFoldDB; Q4G351; -.
DR   SMR; Q4G351; -.
DR   GeneID; 3562500; -.
DR   Proteomes; UP000013827; Unassembled WGS sequence.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0065002; P:intracellular protein transmembrane transport; IEA:UniProtKB-UniRule.
DR   GO; GO:0006605; P:protein targeting; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.3370.10; -; 1.
DR   HAMAP; MF_01465; SecY; 1.
DR   InterPro; IPR026593; SecY.
DR   InterPro; IPR002208; SecY/SEC61-alpha.
DR   InterPro; IPR023201; SecY_dom_sf.
DR   PANTHER; PTHR10906; PTHR10906; 1.
DR   Pfam; PF00344; SecY; 1.
DR   PIRSF; PIRSF004557; SecY; 1.
DR   SUPFAM; SSF103491; SSF103491; 1.
DR   TIGRFAMs; TIGR00967; 3a0501s007; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Membrane; Plastid; Protein transport; Reference proteome;
KW   Thylakoid; Translocation; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..422
FT                   /note="Protein translocase subunit SecY"
FT                   /id="PRO_0000414215"
FT   TRANSMEM        17..37
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        61..81
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        114..134
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        141..161
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        166..186
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        202..222
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        265..285
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        306..326
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        364..384
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        394..414
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   422 AA;  46182 MW;  6F8B7D72BF1AF7D5 CRC64;
     MEQSTTRSLL KGKILKILTL LLLVRLGLYI PVPGVELDIL TQGQTSNPMF GFAKTLVGNS
     FLGIGSLGIL PYINASIIIQ LLTPLFPNLE RLQKEEGELG RQQISRYTRY LTCIWAIVLS
     SAIAFFLIKP ITFGWSLKLG LEIVLSLTVG SILSMWFAEL ITEESLGNGS SMIIFINIVG
     GIPNNLSSLS KTFSAANLAS AIPLLLTGLG IYLGIVLIII FFQESYKKIT IVSAKQLNLT
     TSAQTQSERL ANNSFIPLKL NQGGIMPLVF SSTIAVVFMY PAQILLSSAL LTNAAGLASK
     LLTIYSFGIN FVLVIFFSCF YVSLVLKPKD MSENLGKMAY SIPGIRQGKE TTKYLEKVIN
     RLAFIGGLFL AFLAFFPLFV GNFIQFGLFK NLTSLLILIG VITDTTSQIT GYLVSTRYEG
     LK