>sp|Q28071|CD28_BOVIN T-cell-specific surface glycoprotein CD28 OS=Bos taurus OX=9913 GN=CD28 PE=2 SV=1
MLRLLLALNFFPSIQVAENKILVKQSPMLVVNDNEVNLSCKYTYNLFSKEFRASLYKGAD
SAVEVCAVNGNHSHPLQSTNKEFNCTVKVGNETVTFYLQDLYVNQTDIYFCKLEVLYPPP
YIDNEKSNGTIIHVKEKHLCPSPRSPESSKPFWALVVVNGVLVFYSLLVTVALSNCWMKN
KRNRMLQSDYMNMTPRRPGPTRRHYQPYAPARDFAAYRS