>1pl4B (B:) observed residues (from ATOM records) khslpdlpydygalephinaqimqlhhskhhaayvnnlnvteekyqealakgdvtaqial qpalkfnggghinhsifwtnlspngggepkgelleaikrdfgsfdkfkekltaasvgvqg sgwgwlgfnkerghlqiaacpnqdplqgttglipllgidvwehayflqyknvrpdylkai wnvinwenvterymac