>tr|S4R1R4|S4R1R4_MOUSE Spermine binding protein OS=Mus musculus OX=10090 GN=Sbp PE=1 SV=1 MLLLLTLAFLASPTCRAQNVLGNAAGKYFYVQGEDQGQLKGMRIFLSVFKFIKGFQLQFG SNWTDVYGTRSDNFIDFLLEDGEHVIKPKCLYLSV