Your input sequence length should be at least more than 50aa and no more than 6000aa, and all amino acids of each sequence must be in one line. The number of input sequences should be no more than 3 at a time. For example:
>Example1
MEPVDPRLEPWKHPGSQPKTACTTCYCKKCCFHCQVCFTKKALGISYGRKKRRQRRRAPEDSQTHQVSLPKQPAPQFRGDPTGPKESKKKVERETETHPVD
>Example2
MPEPAKSAPAPKKGSKKAVTKAQKKDGKKRKRSRKESYSVYVYKVLKQVHPDTGISSKAMGIMNSFVNDIFERIAGEASRLAHYNKRSTITSREIQTAVRLLLPGELAKHAVSEGTKAVTKYTSSK
>Example3
MSGRGKQGGKARAKAKTRSSRAGLQFPVGRVHRLLRKGNYAERVGAGAPVYLAAVLEYLTAEILELAGNAARDNKKTRIIPRHLQLAIRNDEELNKLLGKVTIAQGGVLPNIQAVLLPKKTESHHKAKGK