However, since they do not definitively characterize nucleotide changes, when they are used within a diagnostic setting, it is imperative to subsequently characterize any nucleotide variation indicated, using either targeted direct variant assays or automatic sequencing.
Indeed, modifications of residue 14 that enhanced internal hydrogen bonding increased potency of inhibition across all variants assayed in vitro.
The Taqman PCR assay developed was valid for quantitative measurements of all Cluster 1 CTX-M variants assayed, except CTX-M-12, 30 and 60, which did not match the sequence of the lower primer (Figure 3).
However, due to the size of the study population and the SLC26A5 gene, previously reported variants assayed by sequencing were only confirmed by a second sequencing reaction either in the opposite direction or in the same direction as the first when deemed necessary for confirmation based on the appearance of the initial sequence electropherogram.
This increase in observed variants is largely the result of rare variants assayed by whole-genome sequencing (WGS).
These technologies are changing rapidly, and Buermans and den Dunnen [ 17] have provided a recent review of the types of variants assayed by some of these technologies.
The majority of PGD testing is restricted in the scope of variants assayed or by the availability of extended family members.
Initially, 57 M variants were discovered by sequencing 30 representative temperate maize lines and then stringently filtered for sequence quality scores and predicted conversion performance on the array resulting in the selection of 1.2 M polymorphic variants assayed on two screening arrays.
normal elements with mean zero and variance one, and took the median across samples of ∥ A ' e∥ L ∞. Estimates of σ A 2, σ E 2 with respect to the variants assayed in a given study can be obtained using the genomic-relatedness method [ 7, 30- 32].
