Alan Lehmann is professor of molecular genetics at the University of Sussex. During his career he has carried out extensive research into how cells repair damage to their DNA, and how these repair processes can go wrong in patients with certain genetic disorders.

He has devised simple cellular tests to confirm or exclude clinical diagnoses, as well as tests for prenatal diagnoses.

Alan is based at the Genome Damage and Stability Centre at the University of Sussex where skin biopsies are sent for diagnosis and is a consultant scientist at specialist multi-disciplinary clinics for Xeroderma pigmentosum, Cockayne Syndrome and trichothiodystrophy.