There are hundreds of rare heritable diseases but the number of people affected is relatively small – only 4% of the population is born with genetic diseases caused by mutations in single genes (rather than being affected by a number of genes, such as breast cancer) and, because the number of people affected is small, there are far fewer treatments.
Many are known to be caused by mutations in single genes, yet for the vast majority no treatments are available.
Earlier cases of resistance were largely due to mutations in single genes – trump cards that immediately made for invincible parasites.
Mutations in single genes have been shown to cause PD, and accumulation of α-synuclein seems to be a clue to the pathogenesis of neurodegeneration.
We examined a large set of yeast strains with mutations in single genes to determine the impact of genetic background on yeast replicative life-span (RLS) response to CR (1).
With a less efficient helicase and therefore less efficient DNA repair, Martin suggests, atherosclerotic lesions could arise like tumors from mutations in single cells, besides their well-known origin from chronic inflammation from high-fat diets.
Phenotypes of several heritable disorders are linked to missense mutations in single alleles.
Mutations in single genes encoding several C. elegans mitochondrial-localized proteins have been described [17] [19].
Cardiomyopathies are primary disorders of the myocardium resulting from heritable mutations in single genes.
To establish whether particular genes or operons were under selective pressure the presence of multiple mutations in single genes or operons were analyzed.
Strains carrying mutations in single Δ9 desaturase genes show only subtle defects in fatty acid composition, growth and fertility because expression the remaining isoforms increases to compensate for the mutated activity.
