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Fig. 8. Accumulation of isotope-labeled phenylalanine (A) and methionine (B) in
deionized water-injected (empty circles and blue lines) and agNAT8
transcript-injected (black filled circles and red lines) oocytes. Values are
means ± s.e.m. for at least three oocytes per data point. Lines are
nonlinear regression fits of the data sets by a single rectangular function,
f=a*x/(b+x). (C) pH dependency of
phenylalanine-induced currents mediated by agNAT8. Values are means ±
s.e.m. for at least three oocytes/experiment per data point. Data from
different oocytes were normalized in each group relative to values at pH 7.3.
The straight line represents a linear regression of the entire data set,
f=y0+ax.