Also, the time and behavior to reach steady state amid changing precipitating conditions was investigated, to select for correct collection times to ensure high product quality.
Leu+ transformants were replica-plated onto 5FOA plates to select for correct replacement transformants.
Compared to DNA polymerases in the other families, the Y-family members have more flexible and solvent-accessible active sites that likely allow for the accommodation of various, often bulky, lesions at the expense of the ability to strongly select for correct nucleotides.
The Ion Torrent error-corrected subsets of data were downsampled by selecting for corrected reads greater than 3000 (for 20-25× 20-25×000 (for 12-15×) nucleotides in length, while the MiSeq error-corrected subset of dand was downsampled for reads greater than 2500 and 3250, respectively.
The 203 PrSMs were selected for computing "correct" conditional spectral probabilities.
Although knowing the distribution of the population in the centres and the pupils in each stratum, it is always possible to calculate the probability of one unit being selected for sampling, and correct this using inverse probability weighting, in case an imbalance in the sample by strata is considered necessary.
Work over the past several years has unraveled details for how the various DNA glycosylases survey DNA, detect damage within the duplex, select for the correct modification, and catalyze base excision.
Competent cells (> 1 × 108 cfu/μg) were transformed with 1 μl of the reaction and the entire transformation was plated onto LB-agar plates containing 30 μg/ml chloramphenicol and 7% sucrose (w/v) to select for the correct recombinant vector.
Typically, four colonies were selected for confirmation of the correct assembly of the mutation fragments and the correct sequence of the mutation cassette using primers pHA.seq.F and pHA.seq.R (see Additional file 1: Table S3).
Precursors selected for MS/MS fragmentation were corrected for errors in monoisotopic peak assignment, and tandem MS spectra were searched using the Sequest algorithm, with mass tolerance set to 25 ppm and two missed cleavages allowed.
