APC as an entry point to study small molecule regulation of the cell cycle

• Grant number: 17/10333-8
• Support Opportunities: Research Grants - Young Investigators Grants
• Start date: August 01, 2018
• End date: July 31, 2025
• Field of knowledge: Biological Sciences - Botany - Applied Botany
• Agreement: Max Planck Society for the Advancement of Science
• Principal Investigator: Nubia Barbosa Eloy
• Grantee: Nubia Barbosa Eloy
• Principal researcher abroad: Lothar Willmitzer
• Institution abroad: Max Planck Society, Potsdam, Germany
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated scholarship(s): 23/13107-0 - Characterization of the overexpressions effect of SAMBA gene in Micro-Tom, BP.IC; 22/07736-1 - Characterization of APC5 loss-of-function mutants in Arabidopsis thaliana, BP.IC; 21/13844-9 - Expression of the pSAMBA-GUS-GFP reporter gene at different stages of development of the Micro-tom tomato, BP.IC; + associated scholarships 21/06611-8 - APC as an entry point to study small molecule regulation of the cell cycle, BP.PD; 21/03212-5 - Functional Characterization of subunit 5 from Anaphase Promoter Complex, BP.MS; 20/02353-1 - Use of anaphase promoter complex genes to increase biomass, BP.MS; 20/00888-5 - APC as an entry point to study small molecule regulation of the cell cycle, BP.PD; 19/00088-1 - Use of APC subunits to study the regulation of small molecules in the cell cycle, BP.IC - associated scholarships

Abstract

The anaphase-promoting complex/cyclosome (APC/C) is a multi-subunit E3 ubiquitin ligase that plays a major role in the progression of the eukaryotic cell cycle. This unusual protein complex targets key cell-cycle regulators, such as mitotic cyclins and securins, for degradation via the 26S proteasome by ubiquitination, triggering the metaphase-to-anaphase transition and exit from mitosis. The identification of the complete set of genes encoding subunits of the APC in Arabidopsis suggests that the basic processes controlled by proteolysis mediated by ubiquitin in plants are similar to those of other organisms. However, results from several groups indicate that the APC has other specific functions in the regulation of plant development. During the last years, several molecular-biology tools have been extensively used in scientific research for identifying new function of proteins and metabolites. Still, the identification of metabolites, specially which control the cell cycle is not trivial and is characterized by piecemeal progress, especially in plants. In this project, we aim to use metabolomics to identify and characterize metabolites that bind to the APC in the model plant Arabidopsis, and to potentially define their roles in plant development. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SALEME, MARINA DE LYRA SORIANO; ANDRADE, INGRID ROCHA; ELOY, NUBIA BARBOSA. The Role of Anaphase-Promoting Complex/Cyclosome (APC/C) in Plant Reproduction. FRONTIERS IN PLANT SCIENCE, v. 12, FEB 24 2021. (20/00888-5, 20/02353-1, 17/10333-8)

DE OLIVEIRA, PERLA NOVAIS; DA SILVA, LUIS FELIPE CORREA; ELOY, NUBIA BARBOSA. The role of APC/C in cell cycle dynamics, growth and development in cereal crops. FRONTIERS IN PLANT SCIENCE, v. 13, p. 13-pg., 2022-09-29. (21/03212-5, 21/06611-8, 17/10333-8)