Research in the Matunis laboratory is focused on understanding the molecular mechanisms regulating the modification of proteins by the small ubiquitin-related modifier (SUMO) and the consequences of SUMOylation in relation to protein function, cell behavior and ultimately, human disease. Particular interests include understanding how SUMOylation regulates cell cycle progression, DNA repair, nuclear import and export, and cell stress response pathways. We study SUMOylation in mammalian cells, yeast and the malaria parasite, P. facliparum using a variety of in vitro biochemical approaches, in vivo cellular approaches and genetics.
McLaughlin D, Coey CT, Yang WC, Drohat AC, Matunis MJ. Characterizing Requirements for Small Ubiquitin-like Modifier (SUMO) Modification and Binding on Base Excision Repair Activity of Thymine-DNA Glycosylase in Vivo. J Biol Chem. 2016 PMID: 26917720.
Reiter KH, Ramachandran A, Xia X, Boucher LE, Bosch J, Matunis MJ. Characterization and Structural Insights into Selective E1-E2 Interactions in the Human and Plasmodium falciparum SUMO Conjugation Systems. J Biol Chem. 2016 PMID: 26697886.
Cubeñas-Potts C, Srikumar T, Lee C, Osula O, Subramonian D, Zhang XD, Cotter RJ, Raught B, Matunis MJ. Identification of SUMO-2/3-modified proteins associated with mitotic chromosomes. Proteomics. 2015 PMID: 25367092.
Cubeñas-Potts C, Goeres JD, Matunis MJ. SENP1 and SENP2 affect spatial and temporal control of sumoylation in mitosis. Mol Biol Cell. 2013 PMID: 24048451.
Guzzo CM, Berndsen CE, Zhu J, Gupta V, Datta A, Greenberg RA, Wolberger C, Matunis MJ. RNF4-dependent hybrid SUMO-ubiquitin chains are signals for RAP80 and thereby mediate the recruitment of BRCA1 to sites of DNA damage. Sci Signal. 2012 PMID: 23211528.