title: Spectrin in primitive erythrocytes.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D003429:Cross Reactions; D004910:Erythrocyte Membrane / Q000032:analysis*; D004912:Erythrocytes / Q000032:analysis*; D006801:Humans; D008565:Membrane Proteins / Q000032:analysis*; D008970:Molecular Weight; D011077:Polychaeta / Q000032:analysis; D013045:Species Specificity; D013049:Spectrin / Q000032:analysis* / Q000276:immunology
chemical_list: D008565:Membrane Proteins; D013049:Spectrin