Whether this mutation was derived from the cloning procedure or reflects a low-level variant present in the parental vaccine stock is unclear.
These frequencies could reflect the immediate effect of the mutation in the female's genotype, or a cumulative (multi-generational) effect of the mutation in the stock from which the TP5 element and the mutation were derived.
Genomic DNA was also extracted from non-hematopoietic cells of hairs or nails to examine whether the mutation was derived from the germline mutation in familial LGL L cases.
Briefly, the mouse factor VII cDNA containing a K341A mutation was derived from a previously constructed Icon plasmid vector pcDNA3.1/mfVII K341A)/hIgG1 Fc (Hu et al, 1999; Hu and Garen, 2000, 2001).
Moreover, GISTs from a same patient with germline mutation are derived from independent clones and show different cytogenetic abnormalities, suggesting that different progression pathways can lead to GIST from polyclonal hyperplasia.
Advisability of studies on pathogenic role of such mutations is derived from molecular mechanisms, by which they can cause defects in the protein structure of some respiratory chain enzymes and in transfer RNA (tRNA), synthesized directly in the mitochondria.
U2OS HIF-1α (344–826 V5) also with N416R, M561A and M568A mutations was derived and cultured using described protocols [ 12].
Reconstruction of MC1R evolution over the molecular phylogeny in PAML shows that these mutations were derived in terminal lineages.
Mouse fibroblasts carrying pathogenic mtDNA mutations were derived from the mouse L929 cell line, which has fixed several mutations over long-term culture.
When data on APC and K-ras mutations are derived from the study by Smith et al. [ 9], similar results, although not statistically significant, could be obtained.
