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

• Grant number: 21/06611-8
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: August 01, 2021
• End date: January 31, 2025
• Field of knowledge: Biological Sciences - Biochemistry - Molecular Biology
• Agreement: Max Planck Society for the Advancement of Science
• Principal Investigator: Nubia Barbosa Eloy
• Grantee: Perla Novais de Oliveira
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated research grant: 17/10333-8 - APC as an entry point to study small molecule regulation of the cell cycle, AP.JP
• Associated scholarship(s): 23/11838-7 - Unraveling the role of the SAMBA gene in fruit growth in tomato cv. Micro-tom, BE.EP.PD 22/04299-0 - Unraveling the role of the SAMBA gene in the metabolomics profile of tomato cv. Micro-Tom, BE.EP.PD

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

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

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)

DE OLIVEIRA, PERLA NOVAIS; DE SOUZA, LEONARDO PEREZ; FERREIRA, PEDRO BOSCARIOL; MAUXION, JEAN PHILLIPPE; DA SILVA, LUIS FELIPE CORREA; CHANG, ANA ISABELA; SALEME, MARINA DE LYRA SORIANO; ZHU, FENG; GARCIA, SARA SELMA; DE BEUKELAER, HERMAN; et al. Modulating the activity of the APC/C regulator SISAMBA improves the sugar and antioxidant content of tomato fruits. Plant Biotechnology Journal, v. N/A, p. 21-pg., 2025-06-08. (23/13107-0, 21/06611-8, 21/03212-5, 17/10333-8, 20/00888-5)

FERREIRA, PEDRO BOSCARIOL; FANALLI, SIMARA LARISSA; DE OLIVEIRA, PERLA NOVAIS; CESAR, ALINE DA SILVA MELLO; ELOY, NUBIA BARBOSA. Transcriptomic Analysis of Early Fruit Development in Micro-Tom Tomato Reveals Conserved and Cultivar-Specific Mechanisms. PLANTS-BASEL, v. 15, n. 1, p. 20-pg., 2026-01-03. (17/10333-8, 21/06611-8)