title: An electrophoretic and immunoelectrophoretic study of serum proteins during the life cycle of the lamprey, Petromyzon marinus L.
abstract: Serum proteins of upstream migrants, parasitic adults, early and late metamorphosing animals, and ammocoetes of Petromyzon marinus L. were examined by polyacrylamide gel electrophoresis and crossed-immunoelectrophoresis. The electrophoretic patterns for two proteins, SDS-1 and CB-III, were found to change during the life cycle. quantitative measurements of these two proteins showed that they continued to increase until in the adult they together constituted approx. 85% of the total serum protein. Evidence was obtained for a protein present in ammocoetes and metamorphosing animals, but not in upstream migrants.
mesh_terms: D000375:Aging; D000818:Animals; D001798:Blood Proteins / Q000378:metabolism*; D004591:Electrophoresis, Polyacrylamide Gel / Q000379:methods; D005399:Fishes / Q000254:growth & development*; D007123:Immunoelectrophoresis, Two-Dimensional / Q000379:methods; D007798:Lampreys / Q000254:growth & development*; D008970:Molecular Weight
chemical_list: D001798:Blood Proteins