Mary Hongying Cheng

Mary Cheng, Ph.D.
Research Assistant Professor

Ph.D. Chemical Engineering, Rensselaer Polytechnic Institute
Contact

3501 Fifth Avenue
Pittsburgh, PA 15260

Phone: 412-648-9614
E-mail: hoc2@pitt.edu
Website:

Research Summary

I have modeling experience in a wide range of ion channels/transporters, including several types of sodium coupled neurotransmitter transporters, neurotransmitter-gated ion channels, CLC channels/transporters, and gap junction Claudin-2. My research interest and expertise lie in protein modeling and medicinal chemistry, focusing on molecular mechanisms of i) transporter functions, i.e., transporter cycle; ii) ion transport through membrane protein channels, i.e. channel conductance and charge selectivity; iii) drug modulation of protein receptors, i.e. ligand binding sites and binding affinity; and iv) protein-lipid and lipid-lipid interactions. I am particularly interested in development/implement of multi-scale modeling technology to investigate biological systems at both molecular and cellular levels. I developed a hybrid molecular dynamics/Brownian dynamics methodology that can be applied to investigate ion permeation through membrane protein channels.

Recent Publications

Cheng MH, Torres-Salazar D, Gonzalez-Suarez AD, Amara SG, Bahar I (2017) Substrate transport and anion permeation proceed through distinct pathways in glutamate transporters. eLife [Epub ahead of print].

Kaya C, Cheng MH, Block ER, Sorkin A, Faeder JR, Bahar I (2017) Effect of Spatial Complexity on Dopaminergic Signaling Revealed from Multiscale Simulations Biophysical Journal 112 (3), 135a.

Cheng MH, Garcia-Olivares J, Wasserman S, DiPietro J, Bahar I (2017) Allosteric Modulation of Human Dopamine Transporter Activity under Conditions Promoting its Dimerization J Biol Chem [Epub ahead of print].