de Belle, J. S. & Heisenberg, M. Expression of Drosophila mushroom body mutations in alternative genetic backgrounds: a case study of the mushroom body miniature gene (mbm).
However, it remains strictly possible that activating mutations in alternative Ras signaling constituents occur in neuroblastoma.
These examples demonstrate how computational modeling of IEMs could provide biochemical explanations for adaptive mutations in alternative pathways and for phenotypic variability within the same IEM groups.
Subsequent metabolomics was then used to compare, by principal components analysis, mutants of known starch metabolizing genes with the experimentally derived mutants and subsequently to discriminate between strains with a bona fide deficiency in starch metabolism and those containing mutations in alternative pathways that coincidentally had pleiotropic effects on starch metabolism 74.
An invariant pattern of splicing was observed for the constitutive exons but intriguingly for the mutations lying in alternative exons, both the mutated and the normal alleles showed variability in the ratio of exon inclusion.
To test this hypothesis, we asked whether point mutations in the alternative 12S and 13S 5' splice sites of the adenovirus E1A gene can be suppressed by compensatory base changes in human U1 snRNA.
The homologous recombination protein Rad52 was also required to protect the (CAG) 70-URA3 reporter from length instability and chromosome breakage in the presence of mutations in the alternative clamp loader Ctf18-Dcc1-Ctf8-RFC Ctf18-Dcc1-Ctf8-RFC Ctf18-Dcc1-Ctf8-RFC Ctf18-Dcc1-Ctf8-RFC
For instance, cassette-exon SSs seem to be under selection to be weak (Garg and Green 2007), and several experimental studies showed that mutations in weak alternative SSs that make them closer to the consensus may cause loss of splicing regulation (Zheng et al. 2000; Ast 2004).
Aetiologies of HUS were those commonly described in HUS such as toxic causes, mutations in proteins involved in alternative pathway of the complement, and post infectious diseases.
Possibly there was degradation of zeocin over time or this procedure favoured the selection of mutations that increased resistance in alternative ways, not coupled to gene copy number.
