Alternative splicing (AS) is the mechanism by which a common precursor mRNA produces different mRNA variants, by extending, shortening, skipping, or including exon sequences, or retaining intron sequences.
Our results demonstrate that the encoded protein possesses ω-6 Oleate desaturase activity, which might participate in the biosynthesis of esters and lactones in peach fruit by generating a common precursor, linoleic acid.
Our data indicate, however, that these are pseudogenes that probably arose by retrotransposition from a common precursor with other HyNaCs [ 32].
ApoLp-I and apoLp-II are generated by proteolytic cleavage of a common precursor protein called preproapolipophorin [3], [4] and form the "non-exchangeable" lipid-binding protein core of the lipophorin particle [2].
Alternatively, the two cell types could have arisen by cell differentiation from a common precursor cell.
It is not clear whether different pancreatic tumor types arise from transformation of different target cells, from transformation followed by transdifferentiation, or from transformation of a common precursor, with the phenotypes determined by the differentiation effects of specific genetic alterations.
The second hypothesis is strongly supported by developmental studies in planarians (Takeda et al. 2009; Watanabe K, unpublished data) indicating that the two-celled prototypic eyes of Polycelis auricularia (fig. 1) arise by differential cell division from a common precursor cell.
Saposin C is one of four saposins (A, B, C and D) that derive from a common precursor, prosaposin, by proteolytic processing in the late endosome (1).
That a common precursor (siroheme) is used by NirJ and AhbC/AhbD enzymes suggested that a common intermediate serves as a branching point between the two pathways.
The classical brown fat depots typified by the interscapular depot in mice arises from a common precursor with skeletal muscle (8).
