McMillen J, Consigli R A
Infect Immun. 1975 Dec;12(6):1411-4. doi: 10.1128/iai.12.6.1411-1414.1975.
A convenient and gentle procedure was used for in vitro radioisotopic labeling the proteins of Newcastle disease virus. This method, which utilizes [14C]formaldehyde and sodium borohydride, labels all the proteins of purified Newcastle disease virus. Virions labeled in this manner retained biological and biopysical integrity