Temin's first exposure to experimental science was during his time at the
California Institute of Technology as a graduate student in laboratory of Professor
Renato Dulbecco. These results implied that the infecting
Rous sarcoma virus was somehow generating complementary double-stranded DNA. Temin's description of how
tumor viruses act on the genetic material of the cell through reverse transcription was revolutionary. This upset the widely held belief at the time of a popularized version of the "Central Dogma" of
molecular biology posited by
Nobel laureate
Francis Crick, one of the co-discoverers of the structure of
DNA (along with
James Watson and
Rosalind Franklin). Crick had claimed only that sequence information cannot flow out of protein into DNA or RNA, but he was commonly interpreted as saying that information flows exclusively from DNA to
RNA to
protein . Many highly respected scientists disregarded his work and declared it impossible. Despite the lack of support from the scientific community, Temin continued to search for evidence to support his idea. In 1969, Temin and a postdoctoral fellow, Satoshi Mizutani, began searching for the enzyme that was responsible for the phenomenon of viral RNA being transferred into proviral DNA. In 1975, Baltimore and Temin shared the
Nobel Prize of Physiology or Medicine. Both scientists completed their initial work with RNA-dependent DNA polymerase with the
Rous sarcoma virus. The discovery of reverse transcriptase is one of the most important of the modern era of medicine, as reverse transcriptase is the central
enzyme in several widespread viral diseases such as
AIDS and
Hepatitis B. Reverse transcriptase is also an important component of several important techniques in molecular biology, such as the
reverse transcription polymerase chain reaction, and diagnostic medicine.
Mentoring Temin has mentored some PhD students, including
Edward F. Fritsch, co-author of the most-cited book of all time.
Awards and honors Temin was a member of the
American Academy of Arts and Sciences (1973), the United States
National Academy of Sciences (1974), and the
American Philosophical Society (1978). In 1992 Temin received the
National Medal of Science. Temin was elected a
Foreign Member of the Royal Society (ForMemRS) in 1988. Following winning the Nobel Prize, Temin focused his research mainly on studying the viral sequences that control the packaging of viral RNA, developing a new vaccine for
HIV, and studying the mechanisms of retroviral variation. ==Life and career post-Nobel Prize==