Probably due to the specifications I made in tabular, I can't put a line that covers all my columns. If I out hline it's too wide and when I put midrule is too short. Can someone help me to put a line that is the right length?
\begin{table}[h!]
\centering
\caption{Response of \glspl{Tas2r} stimulated with bitter compounds}
\begin{tabular}{p{15.93em}p{13.57em}p{12.57em}}
\textbf{Taste receptor} & \textbf{Ligand} & \textbf{Article} \\
\hline
TAS2R38 & ptc & \cite{meyerhof2010molecular} \\
TAS2R1, TAS2R10 & dxm & \cite{meyerhof2010molecular} \\
TAS2R4, TAS2R7, TAS2R10, TAS2R14, TAS2R39, TAS2R40, TAS2R43, TAS2R44, TAS2R46 & quinine & \cite{meyerhof2010molecular} \\
mouse Tas2r5 & cycloheximide & \cite{chandrashekar2000t2rs} \\
chicken Tas2r1 & 10 (5 natural and 5 synthetic) & \cite{behrens2014tuning} \\
chicken Tas2r2 & 8 (6 natural and 2 synthetic) & \cite{behrens2014tuning} \\
chicken Tas2r7 & 17 (14 natural and 3 synthetic) & \cite{behrens2014tuning} \\
turkey Tas2r3 & 15 (12 natural and 3 synthetic) & \cite{behrens2014tuning} \\
turkey Tas2r4 & 8 (5 natural and 3 synthetic) & \cite{behrens2014tuning} \\
zebra finch Tas2r5 & 5 (1 natural and 4 synthetic) & \cite{behrens2014tuning} \\
zebra finch Tas2r6 & 3 (2 natural and 1 synthetic) & \cite{behrens2014tuning} \\
zebra finch Tas2r7 & 5 (3 natural and 2 synthetic) & \cite{behrens2014tuning} \\
\end{tabular}%
\label{tab:ligand}%
\end{table}%
em
specifications in the tabular definition tocm
does the trick -- you can now experiment further with the column widths -- the 1em =2.8cm which makes the column extremely wide