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HAMAP rule MF_01301

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General rule information [?]

Accession MF_01301
Dates 13-FEB-2002 (Created)
26-JAN-2023 (Last updated, Version 35)
Name LamB
Scope(s) Bacteria
Pseudomonadota
Template(s) P02943 (LAMB_ECOLI); P26466 (LAMB_SALTY); [ Recover all ]
Triggered by HAMAP; MF_01301 (Get profile general information and statistics)

Propagated annotation [?]

Identifier, protein and gene names [?]

Identifier LAMB
Protein name RecName: Full=Maltoporin;
AltName: Full=Maltose-inducible porin;
                 Flags: Precursor;
Gene name Name=lamB;

Comments [?]

FUNCTIONInvolved in the transport of maltose and maltodextrins.
CATALYTIC ACTIVITY Reaction=beta-maltose(in) = beta-maltose(out); Xref=Rhea:RHEA:29731, ChEBI:CHEBI:18147;
SUBUNITHomotrimer formed of three 18-stranded antiparallel beta- barrels, containing three independent channels.
SUBCELLULAR LOCATIONCell outer membrane; Multi-pass membrane protein.
INDUCTIONBy maltose.
SIMILARITYBelongs to the porin LamB (TC 1.B.3) family.

Keywords [?]


Gene Ontology [?]

GO:0015288; Molecular function:porin activity
GO:0015768; Biological process:maltose transport
GO:0009279; Cellular component:cell outer membrane

Cross-references [?]

Pfam PF02264; LamB; 1;
General Signal; -; 1;

Features [?]

From: LAMB_ECOLI (P02943)
Key From To Description Tag Condition FTGroup
SITE 31 31 /note="Greasy slide, important in sugar transport" Y
SITE 66 66 /note="Greasy slide, important in sugar transport" Y
SITE 99 99 /note="Greasy slide, important in sugar transport" W
SITE 143 143 /note="Important in sugar transport" Y
SITE 252 252 /note="Greasy slide, important in sugar transport" [YF]
SITE 383 383 /note="Greasy slide, important in sugar transport" W
SITE 445 445 /note="Greasy slide, important in sugar transport" W

Additional information [?]

Size range 398-452 amino acids
Related rules None
Fusion Nter: None Cter: None



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