Abstract:
:Evidence of a complex formation is a crucial step in the structural studies of ligand-receptor interactions. Here we presented a simple and fast approach for qualitative screening of the complex formation between the chimeric extracellular domain of the nicotinic acetylcholine receptor (α7-ECD) and three-finger proteins. Complex formation of snake toxins α-Bgtx and WTX, as well as of recombinant analogs of human proteins Lynx1 and SLURP-1, with α7-ECD was confirmed using fluorescently labeled ligands and size-exclusion chromatography with simultaneous absorbance and fluorescence detection. WTX/α7-ECD complex formation also was confirmed by cryo-EM. The proposed approach could easily be adopted to study the interaction of other receptors with their ligands.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Kulbatskii DS,Shulepko MA,Sluchanko NN,Yablokov EO,Kamyshinsky RA,Chesnokov YM,Kirpichnikov MP,Lyukmanova ENdoi
10.1016/j.bbrc.2020.08.021subject
Has Abstractpub_date
2020-10-29 00:00:00pages
127-133issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(20)31566-7journal_volume
532pub_type
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