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Genetic element (GENE)
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last updated: 17 Oct 2016
General information
Heat-labile enterotoxin, B subunit gene
EN
CS-LTB-ECOLX
EN
Protein coding sequence
No
Donor organism
EN
Characteristics of the protein coding sequence
Heat-labile enterotoxin, B subunit
EN
Heat-labile enterotoxin (LT) is a hetero-oligomeric AB 5 type enterotoxin composed of a 27 kDa A subunit with toxic ADP ribosyl transferase activity and a stable noncovalent-linked pentamer of 11.6 kDa B subunits.

The B subunit pentamer mediates holotoxin binding to ganglioside GM1 on intestinal epithelial cells, with lower affinity for GD1B, asialoGM1 and lactosylceramide gangliosides.
EN
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