FIG. 2.

Constructs used in the analysis of the PR3 promoter. The extent of the DNA present in plasmids pRSA, pRSB, and pRSC fused to lacZ is shown by horizontal lines. The ExoIII deletions of pRSA are depicted below with the extent of the deletion in base pairs in parentheses. Fragments A and C represent the fragments used in EMSA or DNase I footprinting. The broken arrow is the transcription initiation site, and the numbering indicates nucleotide positions relative to the transcription start site (+1).