ID   SPMB_BACSU              Reviewed;         178 AA.
AC   P35158;
DT   01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT   07-JUL-2009, sequence version 2.
DT   03-AUG-2022, entry version 117.
DE   RecName: Full=Spore maturation protein B;
GN   Name=spmB; Synonyms=ypuK; OrderedLocusNames=BSU23170;
OS   Bacillus subtilis (strain 168).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus.
OX   NCBI_TaxID=224308;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=168 / Marburg / ATCC 6051 / DSM 10 / JCM 1465 / NBRC 13719 / NCIMB
RC   3610 / NRRL NRS-744 / VKM B-501;
RX   PubMed=7934829; DOI=10.1111/j.1365-2958.1993.tb02670.x;
RA   Sorokin A.V., Zumstein E., Azevedo V., Ehrlich S.D., Serror P.;
RT   "The organization of the Bacillus subtilis 168 chromosome region between
RT   the spoVA and serA genetic loci, based on sequence data.";
RL   Mol. Microbiol. 10:385-395(1993).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=168;
RX   PubMed=9384377; DOI=10.1038/36786;
RA   Kunst F., Ogasawara N., Moszer I., Albertini A.M., Alloni G., Azevedo V.,
RA   Bertero M.G., Bessieres P., Bolotin A., Borchert S., Borriss R.,
RA   Boursier L., Brans A., Braun M., Brignell S.C., Bron S., Brouillet S.,
RA   Bruschi C.V., Caldwell B., Capuano V., Carter N.M., Choi S.-K.,
RA   Codani J.-J., Connerton I.F., Cummings N.J., Daniel R.A., Denizot F.,
RA   Devine K.M., Duesterhoeft A., Ehrlich S.D., Emmerson P.T., Entian K.-D.,
RA   Errington J., Fabret C., Ferrari E., Foulger D., Fritz C., Fujita M.,
RA   Fujita Y., Fuma S., Galizzi A., Galleron N., Ghim S.-Y., Glaser P.,
RA   Goffeau A., Golightly E.J., Grandi G., Guiseppi G., Guy B.J., Haga K.,
RA   Haiech J., Harwood C.R., Henaut A., Hilbert H., Holsappel S., Hosono S.,
RA   Hullo M.-F., Itaya M., Jones L.-M., Joris B., Karamata D., Kasahara Y.,
RA   Klaerr-Blanchard M., Klein C., Kobayashi Y., Koetter P., Koningstein G.,
RA   Krogh S., Kumano M., Kurita K., Lapidus A., Lardinois S., Lauber J.,
RA   Lazarevic V., Lee S.-M., Levine A., Liu H., Masuda S., Mauel C.,
RA   Medigue C., Medina N., Mellado R.P., Mizuno M., Moestl D., Nakai S.,
RA   Noback M., Noone D., O'Reilly M., Ogawa K., Ogiwara A., Oudega B.,
RA   Park S.-H., Parro V., Pohl T.M., Portetelle D., Porwollik S.,
RA   Prescott A.M., Presecan E., Pujic P., Purnelle B., Rapoport G., Rey M.,
RA   Reynolds S., Rieger M., Rivolta C., Rocha E., Roche B., Rose M., Sadaie Y.,
RA   Sato T., Scanlan E., Schleich S., Schroeter R., Scoffone F., Sekiguchi J.,
RA   Sekowska A., Seror S.J., Serror P., Shin B.-S., Soldo B., Sorokin A.,
RA   Tacconi E., Takagi T., Takahashi H., Takemaru K., Takeuchi M.,
RA   Tamakoshi A., Tanaka T., Terpstra P., Tognoni A., Tosato V., Uchiyama S.,
RA   Vandenbol M., Vannier F., Vassarotti A., Viari A., Wambutt R., Wedler E.,
RA   Wedler H., Weitzenegger T., Winters P., Wipat A., Yamamoto H., Yamane K.,
RA   Yasumoto K., Yata K., Yoshida K., Yoshikawa H.-F., Zumstein E.,
RA   Yoshikawa H., Danchin A.;
RT   "The complete genome sequence of the Gram-positive bacterium Bacillus
RT   subtilis.";
RL   Nature 390:249-256(1997).
RN   [3]
RP   SEQUENCE REVISION TO 48-65.
RX   PubMed=19383706; DOI=10.1099/mic.0.027839-0;
RA   Barbe V., Cruveiller S., Kunst F., Lenoble P., Meurice G., Sekowska A.,
RA   Vallenet D., Wang T., Moszer I., Medigue C., Danchin A.;
RT   "From a consortium sequence to a unified sequence: the Bacillus subtilis
RT   168 reference genome a decade later.";
RL   Microbiology 155:1758-1775(2009).
RN   [4]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-19.
RX   PubMed=1548223; DOI=10.1128/jb.174.6.1717-1725.1992;
RA   Buchanan C.E., Ling M.-L.;
RT   "Isolation and sequence analysis of dacB, which encodes a sporulation-
RT   specific penicillin-binding protein in Bacillus subtilis.";
RL   J. Bacteriol. 174:1717-1725(1992).
RN   [5]
RP   CHARACTERIZATION.
RX   PubMed=7642500; DOI=10.1128/jb.177.16.4721-4729.1995;
RA   Popham D.L., Illades-Auiar B., Setlow P.;
RT   "The Bacillus subtilis dacB gene, encoding penicillin-binding protein 5*,
RT   is part of a three-gene operon required for proper spore cortex synthesis
RT   and spore core dehydration.";
RL   J. Bacteriol. 177:4721-4729(1995).
CC   -!- FUNCTION: Involved in spore core dehydration; might be involved in the
CC       transport of something into or out of the forespore or could be
CC       required for some modification of the cortex peptidoglycan structure.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000305}; Multi-pass membrane
CC       protein {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the SpmB family. {ECO:0000305}.
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DR   EMBL; L09228; AAA67492.1; -; Genomic_DNA.
DR   EMBL; AL009126; CAB14249.2; -; Genomic_DNA.
DR   EMBL; M84227; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   PIR; S45554; S45554.
DR   RefSeq; NP_390198.2; NC_000964.3.
DR   RefSeq; WP_003230509.1; NZ_JNCM01000036.1.
DR   AlphaFoldDB; P35158; -.
DR   STRING; 224308.BSU23170; -.
DR   EnsemblBacteria; CAB14249; CAB14249; BSU_23170.
DR   GeneID; 938957; -.
DR   KEGG; bsu:BSU23170; -.
DR   PATRIC; fig|224308.179.peg.2524; -.
DR   eggNOG; COG0700; Bacteria.
DR   InParanoid; P35158; -.
DR   OMA; VSTMQGS; -.
DR   PhylomeDB; P35158; -.
DR   BioCyc; BSUB:BSU23170-MON; -.
DR   Proteomes; UP000001570; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IBA:GO_Central.
DR   GO; GO:0030435; P:sporulation resulting in formation of a cellular spore; IEA:UniProtKB-KW.
DR   InterPro; IPR011642; Gate_dom.
DR   Pfam; PF07670; Gate; 1.
PE   1: Evidence at protein level;
KW   Cell membrane; Membrane; Reference proteome; Sporulation; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..178
FT                   /note="Spore maturation protein B"
FT                   /id="PRO_0000201931"
FT   TRANSMEM        3..23
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        42..62
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        155..175
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   CONFLICT        48..65
FT                   /note="IIPYLVGMLVAITVFRSS -> HYPLFSRNACRYNCFQIHP (in Ref.
FT                   1; AAA67492)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   178 AA;  18669 MW;  E9F01A6B60FDC642 CRC64;
     MEIINWLSLA MIPIIIAGIL LYGTIKKVPT YESFVEGGKE GIEIAFSIIP YLVGMLVAIT
     VFRSSGALDF IMDLLKPAFS AIGIPAEVVP LALIRPISGT AALGMTTDLI AVYGPDSFIG
     RLASVMQGST DTTLYVLTVY FGAVGIKKMG DALKVGLLAD LIGVVASIII VTLLFGSA