protein_sequence,protein_class
MAVMKVVKGLVK,Enzyme
MFLLVLALVFF,Transporter
MNEKAGPLVQWI,Receptor
MLYHNRPTKQVL,Signaling
MKYTLIPGSKV,Chaperone
MPTKLVKQPVFA,Transcription_Factor
MIPSSGLAGQKW,Kinase
MGKVEVGRETI,Protease
MSSLVDLFYAVR,Membrane_Protein
MGLGTVYVVKPA,Cell_Adhesion