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Sandra Beatriz Gabelli, Ph.D.

Sandra Beatriz Gabelli, Ph.D.

Headshot of Sandra Beatriz Gabelli
  • Associate Professor of Medicine

Research Interests

Structural basis of Inmunotherapies for intracellular targets; Mechanism of activation and inhibition of Oncogenes (PI3Ka, PTEN, AKT1); Regulation of Voltage gated Sodium Channels; Versatility of the Nudix Enzyme Superfamily more


Dr. Sandra Gabelli is an Associate Professor of Medicine in the Biophysics and Biophysical Chemistry and Oncology departments. She studies the molecular mechanisms of signal transduction and oncogenic activation in the PI3K/mTOR pathways. She is also studying the isoprenoid pathway as a target of protozoan parasitic diseases.

Dr. Gabelli holds a Ph.D. from Johns Hopkins University and completed postdoctoral research at Johns Hopkins before joining the faculty. She is a member of the Johns Hopkins Kimmel Cancer Center. more


  • Associate Professor of Medicine
  • Associate Professor of Art as Applied to Medicine
  • Associate Professor of Biophysics and Biophysical Chemistry
  • Associate Professor of Oncology

Departments / Divisions

Centers & Institutes



  • Ph.D.; Johns Hopkins University School of Medicine (Maryland) (2000)
  • Licenciatura; Universidad Nacional Del Sur (Argentina) (1988)

Research & Publications

Research Summary

Dr. Gabelli's research is focused on understanding the molecular mechanisms of signal transduction and oncogenic activation in the PI3K/mTOR pathways. She is also studying the isoprenoid pathway as a target of protozoan parasitic diseases.

Technology Expertise Keywords

structural biology, drug discovery, X-ray crystallography, SAXS, protein expression and purification

Selected Publications

View all on PubMed

Boto AN, Xu W, Jakoncic J, Pannuri A, Romeo T, Bessman MJ, Gabelli SB, Amzel LM. Structural studies of the Nudix GDP-mannose hydrolase from E. coli reveals a new motif for mannose recognition. Proteins. 2011 Aug;79(8):2455-66.

Duong-Ly KC, Gabelli SB, Xu W, Dunn CA, Schoeffield AJ, Bessman MJ, Amzel LM. The Nudix hydrolase CDP-Chase, a CDP-choline pyrophosphatase, is an asymmetric dimer with two distinct enzymatic activities. J Bacteriol. 2011 Jul;193(13):3175-85.

Gabelli SB, Duong-Ly K, Brower ET, Amzel LM . Capitalizing on tumor genotyping: Towards the design of mutation specific inhibitors of phosphoinsitide-3-kinase. Adv Enzyme Regul. 2011;51(1):273-9.

Messing SAJ, Gabelli SB, Echeverria I, Vogel JT, Guan JC, Tan BC, Klee HJ, McCarty DR, Amzel LM. Structural Insights into Maize Viviparous14, a Key Enzyme in the Biosynthesis of the Phytohormone Abscisic Acid. Plant Cell. Sep;22(9):2970-80.

Schmidt-Kittler O, Zhu JX, Yang J, Liu G, Hendricks W, Lengauer C, Gabelli SB, Kinzler KW, Vogelstein B, Huso DL, Zhou S. PI3Kα Inhibitors That Inhibit Metastasis. Oncotarget. 2010 Sep;1(5):339-48.

Mohan S, Tse CM, Gabelli SB, Sarker R, Cha B, Fahie K, Nadella M, Zachos NC, Tu-Sekine B, Raben D, Amzel LM, Donowitz M. NHE3 activity is dependent on direct phosphoinositide binding at the N-terminus of its intracellular cytosolic region. J Biol Chem. 2010 Nov 5;285(45):34566-78.

Gabelli SB, Huang CH, Mandelker D, Schmidt-Kittler O, Vogelstein B, Amzel LM Structural Effects of Oncogenic PI3Kalpha Mutations. Curr Top Microbiol Immunol. 2010;347:43-53

Barrila J, Gabelli SB, Bacha U, Amzel LM, Freire E. Mutation of Asn28 disrupts the dimerization and enzymatic activity of SARS 3CL(pro). Biochemistry. 2010 May 25;49(20):4308-17.

Gabelli SB, Mandelker D, Schmidt-Kittler O, Vogelstein B, Amzel LM. Somatic mutations in PI3Kalpha: Structural basis for enzyme activation and drug design. Biochim Biophys Acta. 2010 Mar;1804(3):533-40.

Huang CH, Gabelli SB, Oldfield E, Amzel LM. Binding of nitrogen-containing bisphosphonates (N-BPs) to the Trypanosoma cruzi farnesyl diphosphate synthase homodimer Proteins. Proteins. 2010 Mar;78(4):888-99.

Contact for Research Inquiries

Phone: 410-614-4145

Videos & Media

Recent News Articles and Media Coverage

Sandra Gabelli on Protein Structures and Pasta (Fundamentals)

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