TABLE 2.

Spontaneous suppressor mutations in ppsR rescuing phototrophic growth of the prrA null mutant, PRRBCA2^a

Nucleotide mutation	Corresponding amino acid mutation
311T→C	104L→P
524T→C	175L→P
743T→C	248L→P
1376T→C	459L→P
723CCGCGTGTCTT (insertion)	Frameshift

^aNumbers correspond to the nucleotide and amino acid sequences of ppsR (GenBank accession number L37197).