title: A precipitin for human serum proteins as released under stress by a marine invertebrate, the marsh snail, Littorina irrorata.
abstract: A substance released into the environment by stressed marsh snails, Littorina irrorata, precipitates with the beta globulin and albumin fractions of human serum proteins. Other diverse invertebrate species may produce a similar substance. Invertebrate precipitins have not been widely reported, and none like the one described. Some physicochemical and adaptive characteristics of the snail precipitin are presented. This precipitin can be produced in large quantities and has potential application as a diagnostic reagent.
mesh_terms: D000818:Animals; D001609:Beta-Globulins / Q000032:analysis / Q000276:immunology; D001798:Blood Proteins / Q000276:immunology*; D006801:Humans; D011234:Precipitins / Q000276:immunology* / Q000302:isolation & purification; D012908:Snails / Q000276:immunology* / Q000502:physiology; D013312:Stress, Physiological
chemical_list: D001609:Beta-Globulins; D001798:Blood Proteins; D011234:Precipitins