The 5th DNA Repair/Replication Structures & Cancer conference in May 2022 will focus on structural and mechanistic insights into dynamic complexes acting in DNA repair and its interface with replication, transcription and other cancer-relevant transactions. This fundamental information will be pivotal for the accurate interpretation of cancer clinical data, design of clinical trials, prognosis, etiology and improving the currently 1/20 low success rate for oncology drug clinical trials. Informative talks and poster sessions along with vibrant discussions will foster productive interactions, collaborations, and insights.