Membrane translocation of charged residues at the tips of hydrophobic helices in the T domain of diphtheria toxin.
Authors:Ren J, Sharpe JC, Collier RJ, London E
Journal:Biochemistry
PubMed ID:9893993
'The low pH triggered membrane insertion of the T domain of diphtheria toxin is a critical step in the translocation of the C domain of the toxin across membranes in vivo. We previously established that the T domain can interact with membranes in two distinct conformations, one in which the ... More
Topography of diphtheria toxin A chain inserted into lipid vesicles.
Authors:Hayashibara M, London E
Journal:Biochemistry
PubMed ID:15697244
'The membrane-inserting T domain of diphtheria toxin aids the low-pH-triggered translocation of the catalytic A chain of the toxin across endosomal membranes. To evaluate the role of the isolated A chain in translocation, the topography of isolated A chain inserted into model membrane vesicles was investigated using a mixture either ... More
Topography of the hydrophilic helices of membrane-inserted diphtheria toxin T domain: TH1-TH3 as a hydrophilic tether.
Authors:Wang J, Rosconi MP, London E
Journal:Biochemistry
PubMed ID:16800637
'After low pH-triggered membrane insertion, the T domain of diphtheria toxin helps translocate the catalytic domain of the toxin across membranes. In this study, the hydrophilic N-terminal helices of the T domain (TH1-TH3) were studied. The conformation triggered by exposure to low pH and changes in topography upon membrane insertion ... More
Cellular uptake of aminoglycosides, guanidinoglycosides, and poly-arginine.
Authors:Luedtke NW, Carmichael P, Tor Y
Journal:J Am Chem Soc
PubMed ID:14531657
The use of site-directed fluorophore labeling and donor-donor energy migration to investigate solution structure and dynamics in proteins.
Authors:Bergström F, Hägglöf P, Karolin J, Ny T, Johansson LB
Journal:Proc Natl Acad Sci U S A
PubMed ID:10535947
'The use of molecular genetics for introducing fluorescent molecules enables the use of donor-donor energy migration to determine intramolecular distances in a variety of proteins. This approach can be applied to examine the overall molecular dimensions of proteins and to investigate structural changes upon interactions with specific target molecules. In ... More