Research Associate Professor
Many processes in a living cell are regulated through the specific interaction between proteins. Targeting the disruption of protein-protein complexes for therapeutic purposes is considered a very attractive, albeit difficult, approach. In our research, we take advantage of information on the protein's overall fold, primary and secondary structure at the interface and flexibility to identify putative binding sites and design and test molecules that interfere with or block protein-protein interaction. We focus on peptides, peptidomimetics, and small molecular weight compounds.
Nuclear magnetic resonance (NMR) provides the unique advantage of allowing to investigate both protein structure and dynamics and has been effectively employed as a screening technique, especially in fragment-based approaches. We complement our NMR studies with a number of biophysical and biochemical techniques for characterization of proteins and binding interactions (EPR, CD, fluorescence, etc.) and with computational tools for structural refinement and model building.
Bucur O, Gaidos G, Yatawara A, Pennarun B, Rupasinghe C, Roux J, Andrei S, Guo B, Panaitiu A, Pellegrini M, Mierke DF, Khosravi-Far R. "A novel caspase 8 selective small molecule potentiates TRAIL-induced cell death." Sci Rep. 2015 May 11;5:9893. doi: 10.1038/srep09893. PMID: 25962125
Song GJ, Leslie KL, Barrick S, Mamonova T, Fitzpatrick JM, Drombosky KW, Peyser N, Wang B, Pellegrini M, Bauer PM, Friedman PA, Mierke DF, Bisello A. "Phosphorylation of Ezrin-Radixin-Moesin-binding Phosphoprotein 50 (EBP50) by Akt Promotes Stability and Mitogenic Function of S-phase Kinase-associated Protein-2 (Skp2)." J Biol Chem. 2015 290(5):2879-87. doi: 10.1074/jbc.M114.609768. PMID: 25492869
Yatawara A, Gaidos G, Rupasinghe CN, O'Hara BA, Pellegrini M, Atwood WJ, Mierke DF. "Small-molecule inhibitors of JC polyomavirus infection." J Pept Sci. 2014 doi: 10.1002/psc.2731. PMID: 25522925
Guo B, Audu CO, Cochran JC, Mierke DF, Pellegrini M. Protein Engineering of the N-terminus of NEMO: structure stabilization and rescue of IKKβ binding. Biochemistry. 2014 53(43):6776-85. PMID: 25286246 DOI:10.1021/bi500861x
Guo B, Gurel PS, Shu R, Higgs HN, Pellegrini M, Mierke DF.Monitoring ATP hydrolysis and ATPase inhibitor screening using (1)H NMR. Chem Commun (Camb). 2014 Sep 6;50(81):12037-9. doi: 10.1039/c4cc04399e. PMID: 25170530
Fitzpatrick JM, Pellegrini M, Cushing PR, Mierke DF. Small Molecule Inhibition of the Na+/H+ Exchange Regulatory Factor 1 and Parathyroid Hormone 1 Receptor Interaction. Biochemistry. 2014 ;53(37):5916-22. PMID: 25171053
Audu CO, Plati JJ, Pellegrini M, Mierke DF. Engineering a soluble parathyroid hormone GPCR mimetic. Proteins. 2014 Jul;82(7):1370-5. doi: 10.1002/prot.24503. Epub 2014 Jan 15.
Audu, C. O.; Cochran, J. C.; Pellegrini, M.; Mierke, D. F. Recombinant Production of TEV Cleaved Human Parathyroid Hormone. (2013) Journal of Peptide Science, 19, 504–510. PMCID:PMC3755510
Pellegrini M, Willen L, Perroud M, Krushinskie D, Strauch K, Cuervo H, Day ES, Schneider P, Zheng TS.: Structure of the extracellular domains of human and xenopus Fn14: Implications in the evolution of TWEAK and Fn14 interactions. FEBS J. 2013 Apr;280(8):1818-29
Audu CO, O'Hara B, Pellegrini M, Wang L, Atwood W, Mierke DF. Reigning in Polyoma Virus associated nephropathy: design and characterization of a template mimicking BK Viral Coat Protein cellular binding. Biochemistry, 2012 51 (41): 8092-8099. NIHMS412129
Cushing PR, Vouilleme L, Pellegrini M, Boisguerin P, Madden DR. A stabilizing influence: CAL PDZ inhibition extends the half-life of F508-CFTR. Angew Chem Int Ed Engl. 2010 Dec 17;49(51):9907-11. PMCID: PMC3033200.
Lowden, MJ, Skorupski, K, Pellegrini, M, Chiorazzo, MG, Taylor, RK., and Kull, FJ. Structure of Vibrio cholerae ToxT reveals a mechanism for fatty acid regulation of virulence genes. PNAS 2010, 107:2860-65 PMCID: PMC284031.
Ahn KH, Pellegrini M, Tsomaia N, Yatawara AK, Kendall DA, Mierke DF Structural analysis of the human cannabinoid receptor one carboxyl-terminus identifies two amphipathic helices. Biopolymers. 2009 91(7):565-73. PMCID:PMC2698224
Rushe M, Silvian L , Bixler S, Chen LL, Cheung A, Bowes S, Cuervo H, Berkowitz S, Zheng T, Guckian K, Pellegrini M, Lugovskoy A. "Structure of a NEMO/IKK-associating domain reveals architecture of the interaction site." Structure 2008 16:798-808
Baker DP, Lin EY, Lin K, Pellegrini M, Petter RC, Chen LL, Arduini RM, Brickelmaier M, Wen D, Hess DM, Chen L, Grant D, Whitty A, Gill A, Lindner DJ, Pepinsky RB. "N-terminally PEGylated human interferon-beta-1a with improved pharmacokinetic properties and in vivo efficacy in a melanoma angiogenesis model." Bioconjug. Chem. 2006 17:179-88.
Seck T, Pellegrini M, Florea AM, Grignoux V, Baron R, Mierke DF, Horne WC. "The delta e13 isoform of the calcitonin receptor forms a six-transmembrane domain receptor with dominant-negative effects on receptor surface expression and signaling." Mol. Endocrinol. 2005 19:2132-44.
Cusack KP, Arnold LD, Barberis CE, Chen H, Ericsson AM, Gaza-Bulseco GS, Gordon TD, Grinnell CM, Harsch A, Pellegrini M, Tarcsa E. "A 13C NMR approach to categorizing potential limitations of alpha,beta-unsaturated carbonyl systems in drug-like molecules." Bioorg. Med. Chem. Lett. 2004 14:5503-7.
Pellegrini M, Bremer AA, Ulfers AL, Boyd ND, Mierke DF. "Molecular characterization of the substance P/neurokinin-1 receptor complex: development of an experimentally based model." J. Biol. Chem. 2001 276:22862-7 .
Pellegrini M, Liehr S, Fisher AL, Laub PB, Cooperman BS, Mierke DF. "Structure-based optimization of peptide inhibitors of mammalian ribonucleotide reductase." Biochemistry 2000 39:12210-5.
Pellegrini M, Mierke DF. "Molecular complex of cholecystokinin-8 and N-terminus of the cholecystokinin A receptor by NMR spectroscopy." Biochemistry 1999 38:14775-83.
Pellegrini M, Bisello A, Rosenblatt M, Chorev M, Mierke DF. "Binding domain of human parathyroid hormone receptor: from conformation to function." Biochemistry 1998 37:12737-43.
NESS - North Eastern Structure Symposium 2014: Structural Biology of Inflammation
"Fishin' for Inhibitors of NEMO"