>3G7Z_1|Chains A, B|Cytotoxic protein ccdB|Escherichia coli (562) MQFKVYTYKRESRYRLFVDVQSDIIDTPGRRMVIPLASARLLSDKVSRELYPVVHIGDESWRMMTTDMASVPVSVIGEEVADLSHRENDIKNAINLMFWGI >3G7Z_2|Chains C, D|Protein ccdA|null RRLRAERWKAENQEGMAEVARFIEMNGSFADENRDW