ID   LAMB_YERE8              Reviewed;         428 AA.
AC   A1JRU8;
DT   12-JUN-2007, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 79.
DE   RecName: Full=Maltoporin {ECO:0000255|HAMAP-Rule:MF_01301};
DE   AltName: Full=Maltose-inducible porin {ECO:0000255|HAMAP-Rule:MF_01301};
DE   Flags: Precursor;
GN   Name=lamB {ECO:0000255|HAMAP-Rule:MF_01301}; OrderedLocusNames=YE3862;
OS   Yersinia enterocolitica serotype O:8 / biotype 1B (strain NCTC 13174 /
OS   8081).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Yersiniaceae; Yersinia.
OX   NCBI_TaxID=393305;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NCTC 13174 / 8081;
RX   PubMed=17173484; DOI=10.1371/journal.pgen.0020206;
RA   Thomson N.R., Howard S., Wren B.W., Holden M.T.G., Crossman L.,
RA   Challis G.L., Churcher C., Mungall K., Brooks K., Chillingworth T.,
RA   Feltwell T., Abdellah Z., Hauser H., Jagels K., Maddison M., Moule S.,
RA   Sanders M., Whitehead S., Quail M.A., Dougan G., Parkhill J.,
RA   Prentice M.B.;
RT   "The complete genome sequence and comparative genome analysis of the high
RT   pathogenicity Yersinia enterocolitica strain 8081.";
RL   PLoS Genet. 2:2039-2051(2006).
CC   -!- FUNCTION: Involved in the transport of maltose and maltodextrins.
CC       {ECO:0000255|HAMAP-Rule:MF_01301}.
CC   -!- SUBUNIT: Homotrimer formed of three 18-stranded antiparallel beta-
CC       barrels, containing three independent channels. {ECO:0000255|HAMAP-
CC       Rule:MF_01301}.
CC   -!- SUBCELLULAR LOCATION: Cell outer membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01301}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01301}.
CC   -!- INDUCTION: By maltose. {ECO:0000255|HAMAP-Rule:MF_01301}.
CC   -!- SIMILARITY: Belongs to the porin LamB (TC 1.B.3) family.
CC       {ECO:0000255|HAMAP-Rule:MF_01301}.
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DR   EMBL; AM286415; CAL13884.1; -; Genomic_DNA.
DR   RefSeq; WP_005174568.1; NC_008800.1.
DR   RefSeq; YP_001008010.1; NC_008800.1.
DR   AlphaFoldDB; A1JRU8; -.
DR   SMR; A1JRU8; -.
DR   STRING; 393305.YE3862; -.
DR   EnsemblBacteria; CAL13884; CAL13884; YE3862.
DR   KEGG; yen:YE3862; -.
DR   PATRIC; fig|393305.7.peg.4114; -.
DR   eggNOG; COG4580; Bacteria.
DR   HOGENOM; CLU_032473_4_1_6; -.
DR   OMA; DYGRANA; -.
DR   Proteomes; UP000000642; Chromosome.
DR   GO; GO:0009279; C:cell outer membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0046930; C:pore complex; IEA:UniProtKB-KW.
DR   GO; GO:0042958; F:maltodextrin transmembrane transporter activity; IEA:InterPro.
DR   GO; GO:0015481; F:maltose transporting porin activity; IEA:InterPro.
DR   GO; GO:0006811; P:ion transport; IEA:UniProtKB-KW.
DR   CDD; cd01346; Maltoporin-like; 1.
DR   Gene3D; 2.40.170.10; -; 1.
DR   HAMAP; MF_01301; LamB; 1.
DR   InterPro; IPR023738; Maltoporin.
DR   InterPro; IPR003192; Porin_LamB.
DR   InterPro; IPR036998; Porin_LamB_sf.
DR   Pfam; PF02264; LamB; 1.
PE   3: Inferred from homology;
KW   Cell outer membrane; Ion transport; Membrane; Porin; Signal;
KW   Sugar transport; Transmembrane; Transmembrane beta strand; Transport.
FT   SIGNAL          1..24
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
FT   CHAIN           25..428
FT                   /note="Maltoporin"
FT                   /id="PRO_5000201403"
FT   SITE            30
FT                   /note="Greasy slide, important in sugar transport"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
FT   SITE            65
FT                   /note="Greasy slide, important in sugar transport"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
FT   SITE            98
FT                   /note="Greasy slide, important in sugar transport"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
FT   SITE            142
FT                   /note="Important in sugar transport"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
FT   SITE            250
FT                   /note="Greasy slide, important in sugar transport"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
FT   SITE            370
FT                   /note="Greasy slide, important in sugar transport"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
FT   SITE            427
FT                   /note="Greasy slide, important in sugar transport"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
SQ   SEQUENCE   428 AA;  47488 MW;  8BD3446307FEC3C2 CRC64;
     MTTLRKLPIA LAVAAGVLST QAMAVDFHGY ARSGIGWTGS GGEQQCFKTT GAQSKYRLGN
     ECETYAELKL GQELWKEGDK SFYLDTNVAY SVSQRDDWES TDPAFREANV QGKNLIESLP
     GSTMWAGKRF YQRHDVHMID FYYWDISGPG AGLEAIDLGF GKLSVAATRN SEAGGSSAWI
     NNQRKDADKT INDVYDIRLA GLETNPGGSL EFGVDYGRAN TQDDYSLAPN ASKDGVLLTA
     EHTQSMMGGF NKFVVQYATD SMTSWNSGHS QGTSVNNNGH MLRVIDHGAI NLAEKWDMMY
     VALYQDTDWD NNNGTTWYSV GVRPMYKWTP IMSTLLEAGY DNVKSQRTGD RNGQYKLTLA
     QQWQAGDSIW SRPAIRVFAT YANWDEKWGY NNVDKSPDNG LAQNGTIGTD SRGKSNEVTF
     GAQFEAWW