Figure 1

Graphical representation and sequence of the crtR gene from X. dendrorhous. The three crtR exons are highlighted in red and white letters. The restriction enzymes used in this work and their recognition sites are in parentheses. Underlined and bold black letters represent the donor and acceptor splice sites. The sequence is numbered in accordance with its graphical representation. The complete sequence of the DNA fragment that contains the crtR gene is in GenBank [GenBank:EU884133]. pCPR1.3 corresponds to the vector pBluescript SK- bearing the DNA fragment from site BamHI 4529 to BamHI 9895. crtR deletions were constructed from pCPR1.3.