RT Conference Proceedings T1 Geminiviral protein Rep interferes in PCNA sumoylation A1 Sabarit Penalosa, Blanca A1 Arroyo-Mateos, Manuel A1 Sánchez-Durán, Miguel A. A1 Rodríguez-Bejarano, Eduardo K1 Virus fitopatógenos AB Rep is a multifunctional protein essential for replication of geminivirus that interferes with the sumoylation of a key protein in the DNA replication, PCNA (Proliferating Cell Nuclear Antigen). It is known that Rep is capable of interacting with a plethora of plant proteins, including PCNA. Despite the biological significance remains unknown, it’s thought that this interaction should play a key role for generating new copies of the virus genome. Therefore, in order to characterize this interaction, we study which lysines are sumoylated in tomato PCNA (SlPCNA). Considering conservation, location and presence of sumoylation domain criteria, we have identified some candidate lysines and studied how its mutation affects this protein sumoylation in Escherichia coli assays. Finally, we plan to confirm and characterize the Rep interference on SlPCNA sumoylation and determine if this interference occurs in planta. YR 2015 FD 2015-10-21 LK http://hdl.handle.net/10630/10558 UL http://hdl.handle.net/10630/10558 LA eng NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026