>5LZI_1|Chains A, B, C, D, E|Heat-labile enterotoxin B chain|Escherichia coli (562) APQTITELCSEYHNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN