A trimethyllysine-containing trityl tag for solubilizing hydrophobic peptides†
Shugo
Tsuda 
a
and
Taku
Yoshiya
*a
a
and
Taku
Yoshiya
*a
Abstract
Hydrophobic membrane peptides/proteins having low water solubility are often difficult to prepare. To overcome this issue, temporal introduction of solubilizing tags has been demonstrated to be beneficial. Following our recent work on the solubilization of a difficult target by using a hydrophilic oligo-Lys tag bearing a trityl linker (Trt-K method), this paper describes a comparative study of the solubilizing abilities of several peptidic trityl tags containing Lys, Arg, Glu, Asn, Nε-tri-Me-Lys or Cys-sulfonate using two hydrophobic model peptides. Among the tags evaluated, that containing Nε-tri-Me-Lys exhibits superior solubilizing ability.
- This article is part of the themed collection: Chemical Biology in OBC
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