title: Structural studies on crystals found in the intestine of Nematodirus battus.
abstract: Crystals found in the humen of the intestine of Nematodirus battus have been studied by electron microscopy. Two of the unit cell dimensions are 16 nm x 23 nm. The possibility of an immunological significance for these crystals is considered.
mesh_terms: D000818:Animals; D000936:Antigen-Antibody Complex; D003461:Crystallography; D007422:Intestines / Q000648:ultrastructure; D008074:Lipoproteins; D008854:Microscopy, Electron / Q000379:methods; D009348:Nematoda / Q000648:ultrastructure*; D009349:Nematode Infections / Q000469:parasitology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000469:parasitology*
chemical_list: D000936:Antigen-Antibody Complex; D008074:Lipoproteins