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Sequence comparison of the HTH of GntR with that of GntH and with those of the GalR-LacI family. A 20-amino-acid sequence of the HTH of GntR was compared with that of GntH and those of the members of GalR-LacI family. The identities to GntR are expressed as percentages, and identical residues to GntR are indicated by asterisks.
