ID   LAMB_PHOLL              Reviewed;         428 AA.
AC   Q7N987;
DT   21-MAR-2006, integrated into UniProtKB/Swiss-Prot.
DT   15-DEC-2003, sequence version 1.
DT   03-AUG-2022, entry version 104.
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=plu0456;
OS   Photorhabdus laumondii subsp. laumondii (strain DSM 15139 / CIP 105565 /
OS   TT01).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Morganellaceae; Photorhabdus.
OX   NCBI_TaxID=243265;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 15139 / CIP 105565 / TT01;
RX   PubMed=14528314; DOI=10.1038/nbt886;
RA   Duchaud E., Rusniok C., Frangeul L., Buchrieser C., Givaudan A.,
RA   Taourit S., Bocs S., Boursaux-Eude C., Chandler M., Charles J.-F.,
RA   Dassa E., Derose R., Derzelle S., Freyssinet G., Gaudriault S., Medigue C.,
RA   Lanois A., Powell K., Siguier P., Vincent R., Wingate V., Zouine M.,
RA   Glaser P., Boemare N., Danchin A., Kunst F.;
RT   "The genome sequence of the entomopathogenic bacterium Photorhabdus
RT   luminescens.";
RL   Nat. Biotechnol. 21:1307-1313(2003).
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; BX571860; CAE12751.1; -; Genomic_DNA.
DR   RefSeq; WP_011144842.1; NC_005126.1.
DR   AlphaFoldDB; Q7N987; -.
DR   SMR; Q7N987; -.
DR   STRING; 243265.plu0456; -.
DR   EnsemblBacteria; CAE12751; CAE12751; plu0456.
DR   GeneID; 24168200; -.
DR   KEGG; plu:plu0456; -.
DR   eggNOG; COG4580; Bacteria.
DR   HOGENOM; CLU_032473_4_1_6; -.
DR   OMA; DYGRANA; -.
DR   OrthoDB; 1013077at2; -.
DR   BioCyc; PLUM243265:PLU_RS02220-MON; -.
DR   Proteomes; UP000002514; 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; Reference proteome;
KW   Signal; Sugar transport; Transmembrane; Transmembrane beta strand;
KW   Transport.
FT   SIGNAL          1..24
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
FT   CHAIN           25..428
FT                   /note="Maltoporin"
FT                   /id="PRO_0000228854"
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            249
FT                   /note="Greasy slide, important in sugar transport"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01301"
FT   SITE            369
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;  48419 MW;  C04E54461B4A67AD CRC64;
     MKSMRILPIS LTIMAGLLSI EASAVEFHGY ARSGIGWTGS GGEQQCFQST GAQSKYRLGN
     ECETYAELKL GQELWKDGNK SFYFDTNVAY SVAQKNDWES TDPAFREVNV QAKNVIDWLP
     GSTLWAGKRF YQRHDVHMID FYYWDISGPG AGLQDIDLGF SKLALAVTRN TESGGSYGWI
     ASQRKEIPTS NDVYDIRLSG LEVNPGGNLE LGFDYGRANA RDHYKLDRHA SKDGFMFTAE
     HTQSMLGGFN KFVVQYATDS MTSSNSGHSE GASVNNDGYM LRILNHGAIN LAEKWDLMYV
     AMYQDTDRDN NNGNTWYTVG VRPMYKWTST MSTLLDIGYD NVKSQRTHDT NDQYKITLAQ
     QWQAGDSIWS RPAIRLFATY AKWNEKWGNA NKKDGYIDGM AYRDTATHKF SRGDDDEFTF
     GAQFEAWW