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. Author manuscript; available in PMC: 2013 Nov 1.
Published in final edited form as: Nat Struct Mol Biol. 2013 Mar 31;20(5):574–581. doi: 10.1038/nsmb.2535

Figure 4.

Figure 4

Deletion analysis of CTS3 through NTS4. (a–c) Currents of mutant channels elicited in the presence of 20 mM (a) or 100 mM (b and c) extracellular K+ by stepping membrane voltage from the −80 mV (a) or 0 mV (b and c) holding potential to between −70 mV (a) mV or −120 mV (b and c) and 80 mV in 10 mV increments. In the mutant channels, the sequences from I325 to V367 (a), F324 (b) or Y323 (c) were deleted and replaced by a glycine triplet. Currents shown were corrected for background currents obtained with 1 µM agitoxin-1 (AgTx1) present.