Stephen Andrew Bustin (born 1954), PhD, FSB is a British scientist, former professor of molecular sciences at Queen Mary University of London from 2004 to 2012, as well as visiting professor at Middlesex University, beginning in 2006. In 2012 he was appointed Professor of Allied Health and Medicine at Anglia Ruskin University. He is known for his research into polymerase chain reaction, and has written a book on the topic, entitled A-Z of Quantitative PCR. This book has been called "the bible of qPCR."
He obtained his B.A. and PhD from Trinity College, Dublin in molecular genetics.
Following the merger with St Bartholomew's Medical College and Queen Mary University of London he was promoted to Reader in Molecular Medicine in 2002, followed by the award of a personal chair as Professor of Molecular Science in 2004 at Barts and The London School of Medicine and Dentistry. As of 2015[update], Bustin held the position of Professor of Molecular Medicine at Anglia Ruskin University.
Bustin also co-founded and edits the journal Biomolecular Detection and Quantification to provide a peer-reviewed outlet for "high-quality quantitative studies".
His research group’s general areas of interest are the small and large bowel, as well as colorectal cancer with particular emphasis on investigating the process of invasion and metastasis. An important aim is to translate molecular techniques into clinical practice by including molecular parameters into clinical tumor staging. To this end, Bustin has published many papers on PCR techniques, in particular reverse transcription polymerase chain reaction, the subject of his most cited paper, published in 2000.