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Identification of cre sequences in the cry4A gene. Shown is the cry4A gene, with four cre-like sequences (cre1, cre2, cre3, and cre4) homologous to consensus sequence TGWAANCGNTNWCA. +1 represents the cry4A transcription initiation nucleotide, σ35-recognized −35 and −10 elements are underlined, and the SigH promoter is shaded.
