Article
Phenylalanine 30 plays an important role in receptor binding of verotoxin-1.
Molecular microbiology - 1 Feb 1996
Clark C, Bast D, Sharp A M, St Hilaire P M, Agha R, Stein P E, Toone E J, Read R J, Brunton J L
Abstract excerpt
The homopentameric B subunit of verotoxin 1 (VT1) binds to the glycosphingolipid receptor globotriaosylceramide (Gb3). We produced mutants with alanine substitutions for residues found near the cleft between adjacent subunits. Substitution of alanine for phenylalanine 30 (Phe-30) resulted in a fourfold reduction in B subunit binding affinity for Gb3 and a 10-fold reduction in receptor density in a solid-phase...
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