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Sequence comparison of CcpB and CcpA of B. subtilis. Numbers preceding each line indicate the positions in the amino acid sequences. Identical residues are highlighted white on black. The predicted helix-turn-helix region is underlined. The position corresponding to the mini-Tn10 insertion in ccpB is indicated with a box. The CcpA and CcpB primary sequences are available from the SWISS-PROT database under accession numbers P25144 and P37517, respectively.
