Thanks to you and @EagleEye, it worked!!
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Hi everyone!
I hope that someone who familiar with deepTools could help me. I've got into a problem while trying to plot profile using deepTools plotProfile option. I tried to add a title to the graph by the following command: --plotTitle "Damage distribution" but still get the title 'Genes' above it.
This is the obtained pic:

These are my commands:
computeMatrix scale-regions \
-S first.bw second.bw \
-R exons.bed \
--regionBodyLength 140 \
-o matrix.mat.gz
plotProfile \
-m matrix.mat.gz \
-out Exons.png \
--perGroup \
--startLabel "Start" \
--endLabel "140b" \
--colors '#DAA521''#006401' \
--plotTitle "Damage distribution" \
--samplesLabel transcribed nonTranscribed
Your sample label is "genes" because you used --perGroup. Try adding --regionsLabel " "
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What happens If you provide this parameter just with SPACE in double quotes for plotProfile,