SubcellularLocalization Dataset error

[chrismun]

".../protein.py", line 301, in from_sequence
raise ValueError("Invalid sequence %s" % sequence)
ValueError: Invalid sequence MALAVRVVYCGAUGYKPKYLQLKEKLEHEFPGCLDICGEGTPQVTGFFEVTVAGKLVHSKKRGDGYVDTESKFRKLVTAIKAALAQCQ

Error loading the SubcellularLocalization dataset, I get a similar error with the BinaryLocalization dataset, however other datasets, such as Stability, work for me.