title: Immunoassay of 5-methyltetrahydrofolate: use of 125I-labeled protein A as the tracer molecule for specific antibody.
mesh_terms: D000818:Animals; D000918:Antibody Specificity; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D007457:Iodine Radioisotopes; D007553:Isotope Labeling; D011817:Rabbits; D011863:Radioimmunoassay; D013205:Staphylococcal Protein A; D013763:Tetrahydrofolates / Q000097:blood*
chemical_list: D007074:Immunoglobulin G; D007457:Iodine Radioisotopes; D013205:Staphylococcal Protein A; D013763:Tetrahydrofolates; C005984:5-methyltetrahydrofolate