The dataset also showed that the annotated sequences in the rest of three primary metabolic pathways have 0 to 25 singletons matching each gene (see Additional file 10).
Genes encoding proteins involved in primary metabolism pathways have been identified in the contigs with an over-representation of FGAS ESTs and cover several aspects of plant metabolic adjustments.
In mammals, two primary apoptotic signaling pathways have been described: the extrinsic pathway, which is initiated by the tumor necrosis factor (TNF /nerve growth factor (NGF) receptors superfamily [ 7- 11], and the intrinsic pathway, which include the mitochondrial pathway, the endoplasmic reticulum pathway and the DNA damage pathway [ 12- 15].
While these so-called natural products have been targets for plant metabolic engineering attempts for many years, the immense value of manipulating the interface between committed steps in secondary metabolism pathways and those in primary metabolism pathways has only recently emerged.
Two main apoptosis pathways have been identified.
Primary and satellite stomatal pathways have been extensively described (Bergmann and Sack, 2007; see Fig. S1 in Supplementary Data).
Among various developmental signaling pathways, the Wingless (WNT) and the Sonic hedgehog (Shh) pathways have been the primary area of focus for studies related to MB biology.
Based on piRNA sequence signatures and biogenesis factor requirements, two distinct cytoplasmic piRNA biogenesis pathways have been recognized: primary and secondary biogenesis.
In addition to the pathways with a high degree, the network contains a potentially interesting component consisting of 10 metabolic pathways for which interactions with the Primary bile acid biosynthesis and Peroxisome pathways have been found.
Delineating the signaling pathways involved in the activation of human primary DCs and reverse engineering cellular inflammatory pathways have been challenging tasks.
In oncology, pathways have replaced genes as primary building blocks after the observations that critical pathways, such as the Rb, WNT, PI3K/AKT, and p53 pathways [36], can be activated or deactivated by varied and mutually exclusive single gene mutations.
