>PSB4_MOUSE
MEAFWESRAGHWAGGPAPGQFYRIPATPSGLMDPASAPCEGPITRTQNPMVTGTSVLGVK
FDGGVVIAADMLGSYGSLARFRNISRIMRVNDSTMLGASGDYADFQYLKQVLGQMVIDEE
LLGDGHSYSPRAIHSWLTRAMYSRRSKMNPLWNTMVIGGYADGESFLGYVDMLGVAYEAP
SLATGYGAYLAQPLLREVLEKQPVLSQTEARELVERCMRVLYYRDARSYNRFQIATVTEK
GVEIEGPLSAQTNWDIAHMISGFE