diff --git a/phaeoexplorer-change_pep_fasta_header.sh b/phaeoexplorer-change_pep_fasta_header.sh
deleted file mode 100755
index 0de7b9b7bada4edb88dff1d6422c34c1bfbbd4e8..0000000000000000000000000000000000000000
--- a/phaeoexplorer-change_pep_fasta_header.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/usr/bin/env bash
-
-INFILE=$1
-OUTFILE=tmpfile
-
-FILE_HEADER_START=$(grep ">" $INFILE | cut -c 1-6 | sort | uniq)
-HEADER_START_STRING=">mRNA."
-
-if [[ "$FILE_HEADER_START" == "$HEADER_START_STRING" ]]
-then
-    /usr/local/genome2/mmo/scripts/common/common-stringSubstitute.py -i $INFILE -o $OUTFILE -p '^>mRNA' -r '>protein'
-    mv $OUTFILE $INFILE
-    echo "'>mRNA' replaced by '>protein'"
-else 
-    echo "Abort. Not all headers start with '>mRNA.':"
-    echo "$FILE_HEADER_START"
-fi
\ No newline at end of file