protein_sequence,protein_class
MSTNPKPQR,Enzyme
MPQEKRVTVM,Receptor
VSVNIKHGG,Transporter
MGSSHHHHHH,Chaperone
MTAIQDNRFS,Transcription_Factor
MKTAYIAKQ,Kinase
MLLGGGYAGF,Membrane_Protein
MAVTSPQV,Signal_Transduction
MSRPPGVLE,Enzyme
MTDGTQALFG,Protease