ID   LAMB2_YERP3             Reviewed;         419 AA.
AC   A7FF76;
DT   26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   11-SEP-2007, sequence version 1.
DT   25-MAY-2022, entry version 75.
DE   RecName: Full=Maltoporin 2 {ECO:0000255|HAMAP-Rule:MF_01301};
DE   AltName: Full=Maltose-inducible porin 2 {ECO:0000255|HAMAP-Rule:MF_01301};
DE   Flags: Precursor;
GN   Name=lamB2 {ECO:0000255|HAMAP-Rule:MF_01301};
GN   OrderedLocusNames=YpsIP31758_0920;
OS   Yersinia pseudotuberculosis serotype O:1b (strain IP 31758).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Yersiniaceae; Yersinia.
OX   NCBI_TaxID=349747;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=IP 31758;
RX   PubMed=17784789; DOI=10.1371/journal.pgen.0030142;
RA   Eppinger M., Rosovitz M.J., Fricke W.F., Rasko D.A., Kokorina G.,
RA   Fayolle C., Lindler L.E., Carniel E., Ravel J.;
RT   "The complete genome sequence of Yersinia pseudotuberculosis IP31758, the
RT   causative agent of Far East scarlet-like fever.";
RL   PLoS Genet. 3:1508-1523(2007).
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; CP000720; ABS49301.1; -; Genomic_DNA.
DR   RefSeq; WP_011192907.1; NC_009708.1.
DR   AlphaFoldDB; A7FF76; -.
DR   SMR; A7FF76; -.
DR   EnsemblBacteria; ABS49301; ABS49301; YpsIP31758_0920.
DR   GeneID; 66844477; -.
DR   KEGG; ypi:YpsIP31758_0920; -.
DR   HOGENOM; CLU_032473_4_1_6; -.
DR   OMA; YYTYASW; -.
DR   Proteomes; UP000002412; 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..23
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
FT   CHAIN           24..419
FT                   /note="Maltoporin 2"
FT                   /id="PRO_0000322018"
FT   SITE            32
FT                   /note="Greasy slide, important in sugar transport"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
FT   SITE            63
FT                   /note="Greasy slide, 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            418
FT                   /note="Greasy slide, important in sugar transport"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
SQ   SEQUENCE   419 AA;  46278 MW;  1A82812DCB48A335 CRC64;
     MKTSLRTLSV ALAAALVSPS VLAIEKIDFH GYMRAGVGVS SDGGLAEWQK TMVGRLGNES
     DTYGEIGLGA EVYKKEDVSF YLESMVSMLS DGSNDSETTI GDDAQFGLRQ LNLQIKGLIP
     GDKEAVIWGG KRYYQRHDLH IIDTKYWNIS GSGAGIENYT VGPGAVSVAW VRGDANDVDT
     RITGDSDVNI NYIDVRYAGF KPWAGSWTEV GIDYAMPNPT KQQKEYGGLY DADNAVMLTG
     EISQDMFGGY NKLVLQYANK GLAQNMISQG GGWYDMWHKT DEAKGYRVIN TGLIPITDKF
     SFNHVLTWGS ANDITEYTDK TNLISLVGRA QYQFTQYVRA IGEVGGFYQK DTYHNGSNYK
     QGGEKYTIAL GLAEGPDFLS RPELRVFASY LNDSENGKPF EDGTSNDTWN FGVQVEAWW