>gi|4503609 electron-transfer-flavoprotein, beta polypeptide isoform 1 [Homo sapiens]
MAELRVLVAVKRVIDYAVKIRVKPDRTGVVTDGVKHSMNPFCEIAVEEAV
RLKEKKLVKEVIAVSCGPAQCQETIRTALAMGADRGIHVEVPPAEAERLG
PLQVARVLAKLAEKEKVDLVLLGKQAIDDDCNQTGQMTAGFLDWPQGTFA
SQVTLEGDKLKVEREIDGGLETLRLKLPAVVTADLRLNEPRYATLPNIMK
AKKKKIEVIKPGDLGVDLTSKLSVISVEDPPQRTAGVKVETTEDLVAKLK
EIGRI