>8B4E_2|Chain C[auth L]|DNA (25-MER)|Vibrio cholerae (666) CTTTATGTTTTTCTTATGTAATACG >8B4E_3|Chain D[auth M]|DNA (25-MER)|Vibrio cholerae (666) CGTATTACATAAGAAAAACATAAAG >8B4E_1|Chains A, B|Cholera toxin transcriptional activator|Vibrio cholerae (666) MKFILAEKFTFDPLSNTLIDKEDSEEIIRLGSNESRILWLLAQRPNEVISRNDLHDFVWREQGFEVDDSSLTQAISTLRKMLKDSTKSPQYVKTVPKRGYQLIARVETV