1. Darstellung von35S-Methionin und35S-Cystin hoher spezifischer Aktivität durch Biosynthese
2. Method A is a modification of a procedure reported by D. W. Talmage, H. R. Baker, and W. Akeson [J. Infect. Diseases 94, 199 (1954)].
3. Method B is a modification by P. J. McConahey and F. J. Dixon [Intern. Arch. Allergy Appl. Immunol. 29, 185 (1966)] of a method reported by W. M. Hunter and F. C. Greenwood [Nature 194, 495 (1962)].
4. Contribution No. 3450. From the Gates and Crellin Laboratories of Chemistry, California Institute of Technology, Pasadena, California.
5. The in vivo identification in liver tissue of an S35-azo label with its protein carrier