Polyribosomes associated with forming acrosome membranes in guinea pig spermatids.
Ribosomes, some of which are arranged in polyribosomal configurations, are attached to specialized regions of the acrosomal membrane in guinea pig spermatids. This finding indicates a new functional dimension for the acrosomal membrane, that of protein synthesis, and suggests that during acrosome formation, proteins of the acrosomal membrane or acrosomal contents need not be synthesized before or during passage through the Golgi apparatus.
D000177:Acrosome / Q000378:metabolism / Q000648:ultrastructure*; D000818:Animals; D006168:Guinea Pigs; D008297:Male; D008566:Membranes / Q000648:ultrastructure; D011132:Polyribosomes / Q000378:metabolism / Q000648:ultrastructure*; D013087:Spermatids / Q000648:ultrastructure*; D013091:Spermatogenesis; D013094:Spermatozoa / Q000648:ultrastructure*