Fig. 3From: Genome-wide discovery, and computational and transcriptional characterization of an AIG gene family in the freshwater snail Biomphalaria glabrata, a vector for Schistosoma mansoniHypothetical transmembrane (TM) dispositions of predicted polypeptides of the AIG genes of B. glabrata. The phospholipid bilayers here could represent not only plasma membranes, but also could be membranes of organelles including mitochondria, endoplasmic reticulum (ER), Golgi apparatus or other membranous organelles. There are 3 types of hypothetical TM dispositions: Type I, a single transmembrane span with N-terminus on the outside (a-d); Type II, a single transmembrane span, with C-terminus on the outside (e-f); and Type III, with multiple spans (g-k). Some models predict the presence of an AIG1 domain on both side of a membraneBack to article page