ID   MSCL_LACAC              Reviewed;         124 AA.
AC   Q5FLW0;
DT   30-MAY-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2005, sequence version 1.
DT   03-AUG-2022, entry version 84.
DE   RecName: Full=Large-conductance mechanosensitive channel {ECO:0000255|HAMAP-Rule:MF_00115};
GN   Name=mscL {ECO:0000255|HAMAP-Rule:MF_00115}; OrderedLocusNames=LBA0423;
OS   Lactobacillus acidophilus (strain ATCC 700396 / NCK56 / N2 / NCFM).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Lactobacillus.
OX   NCBI_TaxID=272621;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700396 / NCK56 / N2 / NCFM;
RX   PubMed=15671160; DOI=10.1073/pnas.0409188102;
RA   Altermann E., Russell W.M., Azcarate-Peril M.A., Barrangou R., Buck B.L.,
RA   McAuliffe O., Souther N., Dobson A., Duong T., Callanan M., Lick S.,
RA   Hamrick A., Cano R., Klaenhammer T.R.;
RT   "Complete genome sequence of the probiotic lactic acid bacterium
RT   Lactobacillus acidophilus NCFM.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:3906-3912(2005).
CC   -!- FUNCTION: Channel that opens in response to stretch forces in the
CC       membrane lipid bilayer. May participate in the regulation of osmotic
CC       pressure changes within the cell. {ECO:0000255|HAMAP-Rule:MF_00115}.
CC   -!- SUBUNIT: Homopentamer. {ECO:0000255|HAMAP-Rule:MF_00115}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_00115};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_00115}.
CC   -!- SIMILARITY: Belongs to the MscL family. {ECO:0000255|HAMAP-
CC       Rule:MF_00115}.
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DR   EMBL; CP000033; AAV42314.1; -; Genomic_DNA.
DR   RefSeq; WP_011254148.1; NC_006814.3.
DR   RefSeq; YP_193345.1; NC_006814.3.
DR   AlphaFoldDB; Q5FLW0; -.
DR   STRING; 272621.LBA0423; -.
DR   EnsemblBacteria; AAV42314; AAV42314; LBA0423.
DR   KEGG; lac:LBA0423; -.
DR   PATRIC; fig|272621.13.peg.408; -.
DR   eggNOG; COG1970; Bacteria.
DR   HOGENOM; CLU_095787_0_0_9; -.
DR   OMA; AWIIFLM; -.
DR   BioCyc; LACI272621:G1G49-417-MON; -.
DR   Proteomes; UP000006381; Chromosome.
DR   GO; GO:0005887; C:integral component of plasma membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:0008381; F:mechanosensitive ion channel activity; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.1200.120; -; 1.
DR   HAMAP; MF_00115; MscL; 1.
DR   InterPro; IPR019823; Mechanosensitive_channel_CS.
DR   InterPro; IPR001185; MS_channel.
DR   InterPro; IPR037673; MSC/AndL.
DR   InterPro; IPR036019; MscL_channel.
DR   PANTHER; PTHR30266; PTHR30266; 1.
DR   Pfam; PF01741; MscL; 1.
DR   PRINTS; PR01264; MECHCHANNEL.
DR   SUPFAM; SSF81330; SSF81330; 1.
DR   TIGRFAMs; TIGR00220; mscL; 1.
DR   PROSITE; PS01327; MSCL; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Ion channel; Ion transport; Membrane; Reference proteome;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..124
FT                   /note="Large-conductance mechanosensitive channel"
FT                   /id="PRO_0000238006"
FT   TRANSMEM        14..34
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00115"
FT   TRANSMEM        37..57
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00115"
FT   TRANSMEM        67..87
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00115"
SQ   SEQUENCE   124 AA;  13823 MW;  43782DE78DD0ACFA CRC64;
     MLTEFKQFIA RGNVIDLAVG VIIGAAFTAI VQSLVKNLIN PLIGIFVGKI DLSNLVFKAG
     DATFKYGSFI NSVINFLIIS FVVFLIVKAV NKITKKEEEE KPDTPTETDY LKEIRDLLKE
     KETK