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. 2013 Dec 10;8(12):e82253. doi: 10.1371/journal.pone.0082253

Table 1. The influence of upper interface T248 and L249 mutations on activation gating of the Shaker Kv channela .

Channel proteinb K+ current? V1/2 (mV) Z ΔG open (kcal/mol)
Wild type Observed −21.6±0.2 3.20±0.07 −1.64±0.04
T248A NO NA NA NA
L249T Observed −19.2±0.2 3.04±0.05 −1.36±0.02
T248A;L249T Observed 6.4±0.2 1.89±0.02 0.28±0.01

Fig. 2 .a The table displays the gating parameters of all single- and double-mutants used to assess the effect of T248 and or L249 mutation on channel maturation and gating, as addressed in

b Mutants were generated using a monomeric gene construct such that all four subunits carry the indicated mutation.