Jonathon Ditlev

Jonathon Ditlev

Assistant Professor

Postdoc, UT Southwestern Medical Center, 2013-2019
PhD, University of Connecticut, 2012
BSc, Calvin College, 2003

Address Molecular Medicine
Hospital for Sick Children
Peter Gilgan Centre for Research and Learning (PGCRL)
Room 20-9710
686 Bay Street
Toronto, ON M5G 0A4
Lab Phone 416-813-7654, ext. 309427
Office Phone 416-813-7654, ext. 309150

Dr. Jonathon Ditlev is a Scientist in the Molecular Medicine Program at The Hospital for Sick Children (SickKids) Research Institute. Dr. Ditlev earned his B.S. in Biology from Calvin College in 2003. Following graduation, he worked as a research assistant in the laboratory of Dr. Bin Tean Teh at the Van Andel Research Institute in Grand Rapids, Michigan. In 2012, he earned his PhD at the University of Connecticut Health Center under the advisorship of Drs. Bruce Mayer and Les Loew. Dr. Ditlev was a Ruth L. Kirschstein post-doctoral fellow at UT Southwestern Medical Center under the mentorship of Dr. Michael Rosen. He joined the SickKids Research Institute and the University of Toronto Department of Biochemistry in 2019.

Social Media


Research Lab

Current Lab Members

Steve Chung, MSc, Laboratory Technician

Claire MacMurray, Graduate Student

Gaddy Rakhaminov, Graduate Student

Samuel Ben Sofia, Undergraduate Student


Awards & Distinctions

2014-2017 — NIH Ruth L. Kirschstein National Research Service Award


View all publications on PubMed

A composition-dependent molecular clutch between T cell signaling clusters and actin
Ditlev, J.A.*, Vega, A. R.*, Köster, D.V.*, Su, X., Lakoduk, A.M., Vale, R.D., Mayor, S., Jaqaman, K., Rosen, M.K.
ELife. 2019; 8:e42695  Read

Regulation of transmembrane signaling by phase separation
Case, L.B.§, Ditlev, J.A.§, Rosen, M.K.§
Annu Rev Biophys. 2019; 48: 465-494  Read

Stoichiometry controls activity of phase separated clusters of actin signaling proteins
Case, L.B., Zhang, X., Ditlev, J.A., Rosen, M.K.
Science. 2019 Mar 8; 363(6431): 1093-1097  Read

Who’s in and who’s out – Compositional control of biomolecular condensates
Ditlev, J.A.§, Case, L.B.§, Rosen, M.K.§
J. Mol. Biol. 2018 Nov 2; 430(23): 4666-4684  Read

Allosteric modulation of Grb2 recruitment to the intrinsically unstructured scaffold protein, LAT, by remote site phosphorylation
Huang, W.Y.C*, Ditlev, J.A.*, Chiang, H.-K., Rosen, M.K., Groves, J.T.
J Am Chem Soc. 2017 Nov 28; 139 (49): 18009-18015  Read

Reconstitution of TCR signaling using supported lipid bilayers
Su, X., Ditlev, J.A., Rosen, M.K., Vale, R.D.
Methods Mol Biol. 2017;1584:65-76  Read

Phase separation of signaling molecules promotes T cell receptor signal transduction
Su, X.*, Ditlev, J.A.*, Hui, E., Xing, W., Banjade, S., Okrut, J., King, D.S., Taunton, J., Rosen, M.K., Vale, R.D.
Science. 2016 Apr 29; 352(6285): 595-9  Read

There is more than one way to model and elephant. Experiment-driven modeling of the actin cytoskeleton
Ditlev J.A., Mayer B.J., Loew L.M.
Biophys J. 2013 Feb 5; 104(3): 520-32  Read

Stoichiometry of Nck-dependent actin polymerization in living cells
Ditlev J.A., Michalski P.J., Huber G., Rivera G.M., Mohler W.A., Loew L.M., Mayer B.J.
J. Cell Biol. 2012 May 21; 197(5): 643-658  Read

An open model of actin dendritic nucleation
Ditlev J.A., Vacanti N.M., Novak I.L., Loew L.M.
Biophys J. 2009 May 6; 96(6): 3529-3542  Read