General Lab Information

Qun Liu

Principal Investigator, Structural Biology and Bioimaging, Biology Department

Qun Liu

Brookhaven National Laboratory

Biology Department
Bldg. 463, Room B136
P.O. Box 5000
Upton, NY 11973-5000

(631) 344-3417
qunliu@bnl.gov

Qun Liu obtained his Ph.D. in biophysics from Cornell University and did his postdoc research at Cornell Synchrotron Light Source (CHESS). After his postdoc training, he became a scientist at the New York Structural Biology Center; there he worked at the New York Consortium on Membrane Protein Structure as well as the X4 beamlines at the National Synchrotron Light Source (NSLS), Brookhaven National Laboratory. In 2015 Qun Liu joined the Biology Department of the Brookhaven National Laboratory as a Principle Investigator with a joint appointment from NSLS-II. Qun Liu is an Adjunct Professor and a faculty member of the Biochemistry and Structural Biology Program at Stony Brook University.

Research | Publications | Highlights


Research Activities

Membrane Protein Structural Biology: Membrane proteins form specialized gates connecting intracellular compartments and external environment, and are central for understanding information flux (for example, metabolites, nutrients, ions, and electrons) across membranes. Structural studies of these transmembrane gates and their functional characterizations may provide insights into understanding their roles in physiology and pathology. Our structural biology research focuses on the structures and mechanisms of membrane proteins and their complexes important in metal homeostasis, protein quality control, and metabolism.

Technology research and development: We are also interested in developing technologies that will enable or facilitate the membrane protein research. Different from soluble proteins, membrane proteins have hydrophobic transmembrane segments within and hydrophilic heads out of the lipid bilayer, respectively. Stabilization of membrane proteins for structural and functional characterization remains challenging. Eukaryotic membrane proteins are even more challenging owing to prevalent post-modifications and their different cellular localizations. To overcome these barriers, we are developing technologies by leveraging BNL capabilities of x-ray photon sciences at NSLS-II, LBMS Cryo-EM facility, nanotechnology and light microscopy at Center for Functional Nanomaterials (CFN), and data-driving discovery at Computational Science Initiative (CSI).

Selected Publications

  • Chai J, Cai Y, Pang C, Wang L, McSweeney S, Shanklin J, Liu Q (2021) Structural basis for SARS-CoV-2 envelope protein recognition of human cell junction protein PALS1. Nature Communications. doi: 10.1038/s41467-021-23533-x
  • McSweeney DM, McSweeney SM, Liu Q (2020) A self-supervised workflow for particle picking in cryo-EM. IUCrJ 7:719–727. doi: 10.1107/s2052252520007241
  • Zhu P, Yu X-H, Wang C, Zhang Q, Liu W, McSweeney S, Shanklin J, Lam E, Liu Q (2020) Structural basis for Ca2+-dependent activation of a plant metacaspase. Nature Communications. doi: 10.1038/s41467-020-15830-8
  • Takemaru L, Guo G, Zhu P, Hendrickson WA, McSweeney S, Liu Q (2020) PyMDA: microcrystal data assembly using Python. Journal of Applied Crystallography 53:277–281. doi: 10.1107/s160057671901673x
  • Guo G, Zhu P, Fuchs MR, Shi W, Andi B, Gao Y, Hendrickson WA, McSweeney S, Liu Q (2019) Synchrotron microcrystal native-SAD phasing at a low energy. IUCrJ 6:532–542. doi: 10.1107/s2052252519004536
  • Guo G, Xu M, Chang Y, Luyten T, Seitaj B, Liu W, Zhu P, Bultynck G, Shi L, Quick M, Liu Q (2019) Ion and pH Sensitivity of a TMBIM Ca2+ Channel. Structure 27:1013–1021.e3. doi: 10.1016/j.str.2019.03.003
  • Gao Y, Xu W, Shi W, Soares A, Jakoncic J, Myers S, Martins B, Skinner J, Liu Q, Bernstein H, McSweeney S, Nazaretski E, Fuchs MR (2018) High-speed raster-scanning synchrotron serial microcrystallography with a high-precision piezo-scanner. Journal of Synchrotron Radiation 25:1362–1370. doi: 10.1107/s1600577518010354
  • Guo G, Fuchs MR, Shi W, Skinner J, Berman E, Ogata CM, Hendrickson WA, McSweeney S, Liu Q (2018) Sample manipulation and data assembly for robust microcrystal synchrotron crystallography. IUCrJ 5:238–246. doi: 10.1107/s2052252518005389
  • Assur Sanghai Z, Liu Q, Clarke OB, Belcher-Dufrisne M, Wiriyasermkul P, Giese MH, Leal-Pinto E, Kloss B, Tabuso S, Love J, Punta M, Banerjee S, Rajashankar KR, Rost B, Logothetis D, Quick M, Hendrickson WA, Mancia F (2018) Structure-based analysis of CysZ-mediated cellular uptake of sulfate. eLife. doi: 10.7554/elife.27829
  • Liu Q (2017) TMBIM-mediated Ca2+ homeostasis and cell death. Biochimica et Biophysica Acta (BBA) - Molecular Cell Research 1864:850–857. doi: 10.1016/j.bbamcr.2016.12.023
  • Liu Q, Hendrickson WA (2017) Contemporary Use of Anomalous Diffraction in Biomolecular Structure Analysis. Protein Crystallography 377–399. doi: 10.1007/978-1-4939-7000-1_16

Research Highlights

Qun Liu

Brookhaven National Laboratory

Biology Department
Bldg. 463, Room B136
P.O. Box 5000
Upton, NY 11973-5000

(631) 344-3417
qunliu@bnl.gov

Qun's Links