>tr|O87121|O87121_9PAST Cytolethal distending toxin B OS=Actinobacillus sp GN=cdtb MQWVKQLNVVFCTMLFSFSSYANLSDFKVATWNLQGSSAVNESKWNINVRQLLSGEQGAD ILMVQEAGSLPSSAVRTSRVIQHGGTPIEEYTWNLGTRSRPNMVYIYYSRLDVGANRVNL AIVSRRQADEAFIVHSDSSVLQSRPAVGIRIGTDVFFTVHALATGGSDAVSLIRNIFTTF TSSPSSPERRGYSWMVVGDFNRAPVNLEAALRQEPAVSENTIIIAPTEPTHRSGNILDYA ILHDAHLPRREQARERIGASLMLNQLRSQITSDHFPVSFVHDR