title: Ionic requirements of the DNA polymerase associated with serum hepatitis B antigen.
mesh_terms: D002104:Cadmium / Q000494:pharmacology; D002118:Calcium / Q000494:pharmacology; D002712:Chlorides / Q000494:pharmacology*; D003300:Copper / Q000494:pharmacology; D004259:DNA-Directed DNA Polymerase / Q000378:metabolism*; D006511:Hepatitis B Antigens; D006801:Humans; D007501:Iron / Q000494:pharmacology; D008274:Magnesium / Q000494:pharmacology; D009994:Osmolar Concentration; D013431:Sulfates / Q000494:pharmacology*; D015032:Zinc / Q000494:pharmacology
chemical_list: D002712:Chlorides; D006511:Hepatitis B Antigens; D013431:Sulfates; D002104:Cadmium; D003300:Copper; D007501:Iron; D004259:DNA-Directed DNA Polymerase; D008274:Magnesium; D015032:Zinc; D002118:Calcium