Steitz was awarded the 2009 Nobel Prize in Chemistry along with Venkatraman Ramakrishnan and Ada Yonath "for studies of the structure and function of the ribosome".[3] Steitz also won the Gairdner International Award in 2007[4] "for his studies on the structure and function of the ribosome which showed that the peptidyl transferase (EC 2.3.2.12) was an RNA catalyzed reaction, and for revealing the mechanism of inhibition of this function by antibiotics".[5]
He received a Ph.D. in biochemistry and molecular biology from Harvard University in 1966 where he worked under the direction of subsequent 1976 chemistry Nobel Prize winner William N. Lipscomb, Jr.
While at Harvard, after the training task of determining the structure of the small molecule methyl ethylene phosphate,[7] Steitz made contributions to determining the atomic structures of carboxypeptidase A (EC 3.4.17.1)[8] and aspartate carbamoyltransferase (EC 2.1.3.2),[9] each the largest atomic structure determined in its time.
Steitz did postdoctoral research as a Jane Coffin Childs Postdoctoral Fellow at the MRC Laboratory of Molecular Biology during 1967–1970.
Steitz briefly held an assistant professorship at the University of California, Berkeley, but he resigned on the grounds that the institution would not accept his wife Joan into a faculty position because she was a woman.[10]
Both Tom and Joan Steitz instead joined the Yale faculty in 1970, where he continued to work on cellular and structural biology. Steitz and Peter Moore determined the atomic structure of the large 50S ribosomal subunit using X-ray crystallography, and published their findings in Science in 2000.[11] In 2009, Steitz was awarded the Nobel Prize in Chemistry for his ribosome research.
Steitz was also one of the founders of a company, Rib-X Pharmaceuticals, now Melinta Therapeutics for the development of new antibiotics based on the ribosome.
It should also be noted that Tom valued a good time. He always looked forward to department happy hours, wine tastings and any other excuse for a party. He hosted many wonderful Halloween parties at his home, always appropriately attire in costume.[14]
Steitz was married to Joan A. Steitz, a distinguished molecular biologist who is also a Sterling Professor of Molecular Biophysics and Biochemistry at Yale. He lived with her in Branford, Connecticut and had one son, Jon, and two grandchildren, Adam and Maddy.[15] He died on October 9, 2018, of complications during treatment of pancreatic cancer.
^Steitz, T. A. and Lipscomb, W. N., "Molecular Structure of Methyl Ethylene Phosphate," J Am. Chem. Soc. 87, 2488 (1965).
^Ludwig ML, Hartsuck JA, Steitz TA, Muirhead H, Coppola JC, Reeke GN, Lipscomb WN. The Structure of Carboxypeptidase A, IV. Prelimitary Results at 2.8 A Resolution, and a Substrate Complex at 6 A Resolution. Proc Natl Acad Sci U S A. 1967 March; 57(3): 511–514.
^Steitz TA, Wiley DC, Lipscomb WN. The structure of aspartate transcarbamylase, I. A molecular twofold axis in the complex with cytidine triphosphate. Proc Natl Acad Sci U S A. 1967 November; 58(5): 1859–1861.