bp_mrtrans: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/bp_mrtrans - from package: bioperl

You may install the required package with command apt-get install {package}

Error in other languages:
bp_mrtrans: bevel nie gevind nie
bp_mrtrans: comandă negăsită
bp_mrtrans: comando não encontrado
bp_mrtrans: commande introuvable
bp_mrtrans: command not found
bp_mrtrans: käsku ei ole
bp_mrtrans: không tìm thấy lệnh
bp_mrtrans: komanda nerasta
bp_mrtrans: Kommando nicht gefunden.
bp_mrtrans: kommandot finns inte
bp_mrtrans: komut yok
bp_mrtrans: nie znaleziono polecenia
bp_mrtrans: níor aimsíodh an t-ordú
bp_mrtrans: no se encontró la orden
bp_mrtrans: no s'ha trobat l'ordre
bp_mrtrans: opdracht niet gevonden
bp_mrtrans: parancs nem található
bp_mrtrans: perintah tidak ditemukan
bp_mrtrans: príkaz nenájdený
bp_mrtrans: příkaz nenalezen
bp_mrtrans: команда не найдена
bp_mrtrans: командата не е открита
bp_mrtrans: 命令找不到
bp_mrtrans: コマンドが見つかりません