>sp|P10747-2|CD28_HUMAN Isoform 2 of T-cell-specific surface glycoprotein CD28 OS=Homo sapiens OX=9606 GN=CD28
MLRLLLALNLFPSIQVTGKHLCPSPLFPGPSKPFWVLVVVGGVLACYSLLVTVAFIIFWV
RSKRSRLLHSDYMNMTPRRPGPTRKHYQPYAPPRDFAAYRS