Various end-points are possible indicators of the triggering of the SOS system; activation of the RecA protein, cleavage of the LexA repressor, expression of any of the SOS genes, etc . One of the simplest assays consists of monitoring the expression of an SOS gene by means of fusion with lacZ, the structural gene for " E . coli " ?-galactosidase.
42.
The conserved features of a structural gene ( e . g ., DNA polymerase binding site, start and stop codons, and splicing sites ) serve as constants of the computational gene, while the coding regions, the number of exons and introns, the position of start and stop codon, and the automata theoretical variables ( symbols, states, and transitions ) are the design parameters of the computational gene.
43.
The very next year, Johnson and Schlievert and Weeks and Ferreti also found, independently, that the bacteriophage T12 carries the structural gene for speA . In 1986, Johson, Tomai and Schlievert mapped the attachment site ( attP ) for T12 adjacent to the " spe " A gene, and established that all bacterial strains producing the toxin carry either phage T12 itself, or a closely related bacteriophage.
44.
When grown on ORF . Approximately 84 % of the mitochondrial genome are the structural genes . " Microsporum nanum " infections include tinea capitis, tinea corporis, tinea cruris, and tinea faciei . enilconazole and many herbal treatments, such as extracts from " Azadirachta indica ", essential oil from " Curcuma longa " and " Eucalyptus pauciflora " have been reported to be effective in inhibiting the fungus.
