ID   SECY_STRGC              Reviewed;         436 AA.
AC   A8AZK5;
DT   14-DEC-2011, integrated into UniProtKB/Swiss-Prot.
DT   23-OCT-2007, sequence version 1.
DT   25-MAY-2022, entry version 82.
DE   RecName: Full=Protein translocase subunit SecY {ECO:0000255|HAMAP-Rule:MF_01465};
GN   Name=secY {ECO:0000255|HAMAP-Rule:MF_01465}; OrderedLocusNames=SGO_1965;
OS   Streptococcus gordonii (strain Challis / ATCC 35105 / BCRC 15272 / CH1 /
OS   DL1 / V288).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=467705;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Challis / ATCC 35105 / BCRC 15272 / CH1 / DL1 / V288;
RX   PubMed=17720781; DOI=10.1128/jb.01023-07;
RA   Vickerman M.M., Iobst S., Jesionowski A.M., Gill S.R.;
RT   "Genome-wide transcriptional changes in Streptococcus gordonii in response
RT   to competence signaling peptide.";
RL   J. Bacteriol. 189:7799-7807(2007).
CC   -!- FUNCTION: The central subunit of the protein translocation channel
CC       SecYEG. 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. The plug probably moves laterally to allow
CC       the channel to open. The ring and the pore may move independently.
CC       {ECO:0000255|HAMAP-Rule:MF_01465}.
CC   -!- SUBUNIT: Component of the Sec protein translocase complex. Heterotrimer
CC       consisting of SecY, SecE and SecG subunits. The heterotrimers can form
CC       oligomers, although 1 heterotrimer is thought to be able to translocate
CC       proteins. Interacts with the ribosome. Interacts with SecDF, and other
CC       proteins may be involved. Interacts with SecA. {ECO:0000255|HAMAP-
CC       Rule:MF_01465}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_01465};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_01465}.
CC   -!- SIMILARITY: Belongs to the SecY/SEC61-alpha family. {ECO:0000255|HAMAP-
CC       Rule:MF_01465}.
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DR   EMBL; CP000725; ABV09955.1; -; Genomic_DNA.
DR   RefSeq; WP_012130962.1; NC_009785.1.
DR   AlphaFoldDB; A8AZK5; -.
DR   SMR; A8AZK5; -.
DR   STRING; 467705.SGO_1965; -.
DR   EnsemblBacteria; ABV09955; ABV09955; SGO_1965.
DR   KEGG; sgo:SGO_1965; -.
DR   eggNOG; COG0201; Bacteria.
DR   HOGENOM; CLU_030313_0_1_9; -.
DR   OMA; FAMWLGE; -.
DR   Proteomes; UP000001131; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0065002; P:intracellular protein transmembrane transport; IEA:UniProtKB-UniRule.
DR   GO; GO:0006605; P:protein targeting; IEA:UniProtKB-UniRule.
DR   GO; GO:0043952; P:protein transport by the Sec complex; 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; IPR030659; SecY_CS.
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.
DR   PROSITE; PS00755; SECY_1; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Membrane; Protein transport; Reference proteome;
KW   Translocation; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..436
FT                   /note="Protein translocase subunit SecY"
FT                   /id="PRO_0000414210"
FT   TRANSMEM        19..39
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01465"
FT   TRANSMEM        68..88
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01465"
FT   TRANSMEM        116..136
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01465"
FT   TRANSMEM        151..171
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01465"
FT   TRANSMEM        179..199
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01465"
FT   TRANSMEM        216..236
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01465"
FT   TRANSMEM        269..289
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01465"
FT   TRANSMEM        313..333
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01465"
FT   TRANSMEM        372..392
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01465"
FT   TRANSMEM        395..415
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01465"
SQ   SEQUENCE   436 AA;  47344 MW;  CF1693AC788EC17B CRC64;
     MFFKLLKDAF KIKQVRSKIL FTIFIILVFR IGTTITVPGV NAKSLEALSG LSFLNMLSLV
     SGNAMKNFSV FALGVSPYIT ASIVVQLLQM DLLPKFVEWG KQGEVGRRKL NQATRYISLA
     LAFVQSIGIT AGFNALSSTK LVAAPNWQTY LFIGAVLTTG SMIVVWLGEQ ITDKGYGNGV
     SMIIFAGIVA SIPEMVKGIY EDYFVNVPSD RLQSSIIFVA CLIVAVLLIV YFTTYVQQAE
     YKIPIQYTKI AQGAPSSSYL PLKVNPAGVI PVIFASSITA APAAVLQFLS ASGNDWGWVR
     TAQSLLATTT PTGIAMYALL IILFTFFYTF VQINPEKAAE NLQKSGAYIP GVRPGKGTEQ
     FMSKLLRRLA TVGSLFLGFI SIIPIIAKDL FGLSDTVALG GTSLLIIIAT GIEGMKQLEG
     YLLKRKYTGF MNTTTK