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Publications

List of publications that acknowledged the NIGMS MMBioS award P41GM103712.

Google Scholar Publication List

2021    2020    2019    2018    2017      2016      2015     2014    2013


2021

2020

2019

2018

2017

  • Ambler RRuan XMurphy RFWulfing C(2017) Systems Imaging of the immune synapseMethods Mol BiolTRD3 in press

  • Bahar IJernigan RDill K(2017) Protein Actions: Principles & Modeling. New York, NY: Garland Science, Taylor & Francis Group ISBN: 9780815341772

  • Beaven AHMaer AMSodt AJRui HPastor RWAndersen OSIm W(2017) Gramicidin A Channel Formation Induces Local Lipid Redistribution I: Experiment and SimulationBiophysical Journal112:1185-1197. doi: 10.1016/J.BPJ.2017.01.028.

  • Cheng MHKaya CBahar I(2017)A Quantitative Assessment of the Energetics of Dopamine Translocation by Human Dopamine TransporterJ Phys Chem B DOI: 10.1021/acs.jpcb.7b10340 PMID: 29232131
  • Cheng MHGarcia-Olivares JWasserman SDiPietro JBahar I(2017) Allosteric modulation of human dopamine transporter activity under conditions promoting its dimerizationThe Journal of biological chemistry292:12471-12482. doi: 10.1074/jbc.M116.763565. PMID:28584050

  • Cheng MHTorres-Salazar DGonzalez-Suarez ADAmara SGBahar I(2017) Substrate transport and anion permeation proceed through distinct pathways in glutamate transporterseLife6:. doi: 10.7554/eLife.25850. PMID:28569666

  • Chong LTSaglam ASZuckerman DM(2017) Path-sampling strategies for simulating rare events in biomolecular systemsCurrent Opinion in Structural Biology43:88-94. doi: 10.1016/j.sbi.2016.11.019. PMID:27984811 TRD1

  • Gaieb ZMorikis D(2017) Conformational heterogeneity in CCR7 undergoes transitions to specific states upon ligand bindingJournal of Molecular Graphics and Modelling74:352-358. doi: 10.1016/J.JMGM.2017.04.012.

  • Gaieb ZMorikis D(2017) Detection of Side Chain Rearrangements Mediating the Motions of Transmembrane Helices in Molecular Dynamics Simulations of G Protein-Coupled ReceptorsComputational and Structural Biotechnology Journal15:131-137. doi: 10.1016/J.CSBJ.2017.01.001.

  • Gretzmeier CEiselein SJohnson GREngelke RNowag HZarei MKűttner VBecker ACRigbolt KTGHøyer-Hansen MAndersen JSMűnz CMurphy RFDengjel J(2017) Degradation of protein translation machinery by amino acid starvation-induced macroautophagyAutophagyTRD3 in press

  • Gur MCheng MHZomot EBahar I(2017) Effect of Dimerization on the Dynamics of Neurotransmitter: Sodium SymportersThe Journal of Physical Chemistry Bacs.jpcb.6b09876. doi: 10.1021/acs.jpcb.6b09876. DBP1 TRD1

  • Huang YMRaymundo MAVChen WChang CA(2017) Mechanism of the Association Pathways for a Pair of Fast and Slow Binding Ligands of HIV-1 ProteaseBiochemistry56:1311-1323. doi: 10.1021/acs.biochem.6b01112.

  • Johnson GRKangas JDDovzhekno ATrojok RVoigt KMajarian TDPalme KMurphy RF(2017) A Method for Characterizing Phenotypic Changes in Highly Variable Cell Populations and its Application to High Content Screening of Arabidopsis thaliana ProtoplastsCytometry Part ACSP12 TRD3 in press

  • Kagan VEMao GQu FAngeli JPDoll SCroix CSDar HHLiu BTyurin VARitov VBKapralov AAAmoscato AAJiang JAnthonymuthu TMohammadyani DYang QProneth BKlein-Seetharaman JWatkins SBahar IGreenberger JMallampalli RKStockwell BRTyurina YYConrad MBayir H(2017)Oxidized Arachidonic and Adrenic Phosphatidylethanolamines Navigate Cells to Ferroptosis NatureChem Biol13:81-90 PMID: 27842066

  • Li HSharma NGeneral IJSchreiber GBahar I(2017)Dynamic Modulation of Binding Affinity as a Mechanism for Regulating Interferon SignalingJ Mol Biol429:2571-2589 PMID: 28648616

  • Li HChang YYLee JYBahar IYang LW(2017)DynOmics: dynamics of structural proteome and beyondNucleic Acids Res45:W374–W380 PMID: 28472330

  • Liao CZhao XBrewer MMay VLi J(2017) Conformational Transitions of the Pituitary Adenylate Cyclase-Activating Polypeptide Receptor, a Human Class B GPCRScientific Reports7:5427. doi: 10.1038/s41598-017-05815-x.

  • Liu BOltvai ZBayir HSilverman GPak SPerlmutter DBahar I(2017) Quantitative Assessment Of Cell Fate Decision Between Autophagy And ApoptosisbioRxiv129767. doi: 10.1101/129767.

  • Ma SCheng MHGuthrie DANewman AHBahar ISorkin A(2017)Targeting of dopamine transporter to filopodia requires an outward-facing conformation of the transporterSci Rep7:5399 PMID: 28710426

  • Mikulska-Ruminska KKulik AJBenadiba CBahar IDietler GNowak W(2017)Nanomechanics of multidomain neuronal cell adhesion protein contactin revealed by single molecule AFM and SMDSci Rep7:8852 PMID: 28821864

  • Ramezani HAkan OB(2017) Importance of vesicle release stochasticity in neuro-spike communicationThe Journal of Physical Chemistry B121:3343-3347. doi: 10.1109/EMBC.2017.8037572.

  • Rouviere EArnarez CYang LLyman E(2017) Identification of Two New Cholesterol Interaction Sites on the A 2A Adenosine ReceptorBiophysical Journal113:2415-2424. doi: 10.1016/j.bpj.2017.09.027.

  • Sauerwald NZhang SKingsford CBahar I(2017)Chromosomal dynamics predicted by an elastic network model explains genome-wide accessibility and long-range couplingsNucleic Acids Res45:3663-3673 PMID: 28334818

  • Sekar JAPTapia JJFaeder JR(2017) Automated visualization of rule-based modelsPLOS Computational Biology13:e1005857. doi: 10.1371/journal.pcbi.1005857.

  • Simakov NLeonard DASmith JCWymore TSzarecka A(2017) A Distal Disulfide Bridge in OXA-1 $\beta$-Lactamase Stabilizes the Catalytic Center and Alters the Dynamics of the Specificity Determining $\Omega$ LoopThe Journal of Physical Chemistry B121:3285-3296. doi: 10.1021/acs.jpcb.6b07884.

  • Steinman JEpperly MHou WWillis JWang HFisher RLiu BBahar IMcCaw TKagan VBayir HYu JWipf PLi SHuq MSGreenberger JS(2017)Improved Total-Body Irradiation Survival by Delivery of Two Radiation Mitigators that Target Distinct Cell Death PathwaysRadiat Res DOI: 10.1667/RR14787.1 PMID: 29140165

  • Tyurina YYShrivastava ITyurin VAMao GDar HHWatkins SEpperly MBahar IShvedova AAPitt BWenzel SEMallampalli RKSadovsky YGabrilovich DGreenberger JSBayir HKagan VE(2017)"Only a life lived for others is worth living:" Redox Signaling by Oxygenated Phospholipids in Cell Fate DecisionsAntioxid Redox Signal DOI:10.1089/ars.2017.7124 PMID: 28835115

  • Wenzel SETyurina YYZhao JSt Croix CMDar HHMao GTyurin VAAnthonymuthu TSKapralov AAAmoscato AAMikulska-Ruminska KShrivastava IHKenny EMYang QRosenbaum JCSparvero LJEmlet DRWen XMinami YQu FWatkins SCHolman TRVanDemark APKellum JABahar IBayir HKagan VE(2017)PEBP1 Wardens Ferroptosis by Enabling Lipoxygenase Generation of Lipid Death SignalsCell 171:628-641 PMID: 29053969

  • Zhou ZLuo AShrivastava IHe MHuang YBahar ILiu ZWan Y(2017)Regulation of XIAP Turnover Reveals a Role for USP11 in Promotion of TumorigenesisEBioMedicine15:48-61 PMID: 28040451

  • Zuckerman DMChong LT(2017) Weighted Ensemble Simulation: Review of Methodology, Applications, and SoftwareAnnual Review of Biophysics46:43-57. doi: 10.1146/annurev-biophys-070816-033834.

2016

2015

2014

2013

2012

 

 

Research Highlights

 

Direct coupling of oligomerization and oligomerization-driven endocytosis of the dopamine transporter to its conformational mechanics and activity

The Bahar (TR&D1) and Sorkin (DBP3) labs published an article in the Journal of Biological Chemistry, selected as one of JBC's "Editors' Picks. Our results demonstrate a direct coupling between conformational dynamics of DAT, functional activity of the transporter and its oligomerization leading to endocytosis. The high specificity of such coupling for DAT makes the TM4-9 hub a new target for pharmacological modulation of DAT activity and subcellular localization. (Read more)

 

 

Differences in the intrinsic spatial dynamics of the chromatin contribute to cell differentiation

Comparison with RNA-seq expression data reveals a strong overlap between highly expressed genes and those distinguished by high mobilities in the present study, in support of the role of the intrinsic spatial dynamics of chromatin as a determinant of cell differentiation. (Read more)

 

 

Nanoscale co-organization and coactivation of AMPAR, NMDAR, and mGluR at excitatory synapses

Work by TR&D2 Investigators and collaborators provide insights into the nanometer scale organization of postsynaptic glutamate receptors using a combination of dual-color superresolution imaging, electrophysiology, and computational modeling. (Read more)

 

 

Parallel Tempering with Lasso for model reduction in systems biology

TR&D3 Investigators and collaborators develop PTLasso, a Bayesian model reduction approach that combines Parallel Tempering with Lasso regularization, to automatically extract minimal subsets of detailed models that are sufficient to explain experimental data. On both synthetic and real biological data, PTLasso is an effective method to isolate distinct parts of a larger signaling model that are sufficient for specific data. (Read more)

 

Image-derived models of cell organization changes during differentiation and drug treatments

Our work on modeling PC12 cells undergoing differentiation into neuron-like morphologies (under C&SP11, completed) has been published in Molecular Biology of the Cell. We have also made the large dataset of 3D images collected in that study available through Dryad. (Read more)

 

Monoamine transporters: structure, intrinsic dynamics and allosteric regulation

T&RD1 investigators Mary Cheng and Ivet Bahar published an invited review article in Nature Structural & Molecular Biology, addressing recent progress in the elucidation of the structural dynamics of MATs and their conformational landscape and transitions, as well as allosteric regulation mechanisms. (Read more)

Trimerization of dopamine transporter triggered by AIM-100 binding

The Bahar (TR&D1) and Sorkin (DBP3) labs explored the trimerization of dopamine transporter (DAT) triggered by a furopyrimidine, AIM-100, using a combination of computational and biochemical methods, and single-molecule live-cell imaging assays. (Read more)

Pre-post synaptic alignment through neuroligin-1 tunes synaptic transmission efficiency

TR&D2 investigators and collaborators describe organizing role of neuroligin-1 to align post-synaptic AMPA Receptors with pre-synaptic release sites into trans-synaptic “nano-columns” to enhance signaling.(Read more)

Inferring the Assembly Network of Influenza Virus

In an article in PLoS Computational Biology, MMBioS TR&D4 members Xiongto Ruan and Bob Murphy collaborated with Seema Lakdawala to address this question of the assembly network of the Influenza virus.(Read more)

PINK1 Interacts with VCP/p97 and Activates PKA to Promote NSFL1C/p47 Phosphorylation and Dendritic Arborization in Neurons

Our findings highlight an important mechanism by which proteins genetically implicated in Parkinson’s disease (PD; PINK1) and frontotemporal dementia (FTD; VCP) interact to support the health and maintenance of neuronal arbors.(Read more)

Improved methods for modeling cell shape

In a recent paper in Bioinformatics, Xiongtao Ruan and Bob Murphy of TR&D4 addressed the question of how best to model cell and nuclear shape.(Read more)

New tool to predict pathogenicity of missense variants based on structural dynamics: RHAPSODY

We demonstrated that the analysis of a protein’s intrinsic dynamics can be successfully used to improve the prediction of the effect of point mutations on a protein functionality. This method employs ANM/GNM tools (Read more)

New method for investigating chromatin structural dynamics.

By adapting the Gaussian Network Model (GNM) protein-modeling framework, we were able to model chromatin dynamics using Hi-C data, which led to the identification of novel cross-correlated distal domains (CCDDs) that were found to also be associated with increased gene co-expression.  (Read more)

 

Structural elements coupling anion conductance and substrate transport identified

We identified an intermediate anion channeling state (iChS) during the global transition from the outward facing (OF) to inward facing state (IFS). Our prediction was tested and validated by experimental study conducted in the Amara lab (NIMH). Critical residues and interactions were analyzed by SCAM, electrophysiology and substrate uptake experiments (Read more)

Integrating MMBioS technologies for multiscale discovery

TR&D teams driven by individual DBPs are naturally joining forces, integrating their tools to respond to the needs of the DBP, and creating integrative frameworks for combining structural and kinetic data and computing technologies at multiple scales.  (Read more)

 

Large scale visualization of rule-based models.

Signaling in living cells is mediated through a complex network of chemical interactions. Current predictive models of signal pathways have hundreds of reaction rules that specify chemical interactions, and a comprehensive model of a stem cell or cancer cell would be expected to have many more. Visualizations of rules and their interactions are needed to navigate, organize, communicate and analyze large signaling models.  (Read more)

Integration of MCellR into MCell/CellBlender

Using spatial biochemical models of SynGAP/PSD95, MMBioS investigators were able to merge the MCellR code-base with the MCell code-base and validate its utility and correctness of this sophisticated technology now easily accessible through the MCell/CellBlender GUI.  (Read more)

 

csp29

Causal relationships of spatial distributions of T cell signaling proteins

The idea is to identify a relationship in which a change in the concentration of one protein in one cell region consistently is associated with a change in the concentration of another protein in the same or a different region. We used the data from our Science Signaling paper reported last year to construct a model for T cells undergoing stimulation by both the T cell receptor and the costimulatory receptor. (Read more...)

T-Cell Receptor Signaling

BioNetGen modeling helps reveal immune system response decision

To attack or to let be is an important decision that our immune systems must make to protect our bodies from foreign invaders or protect bodily tissues from an immune attack. Using modeling and experiments, we have painted a sharper picture of how T cells make these critical decisions.  (Read more)

 

 

distancecell

Tools for determining the spatial relationships between different cell components

An important task for understanding how cells are organized is determining which components have spatial patterns that are related to each other.Read more

 

4d rtd

Pipeline for creation of spatiotemporal maps

Using a combination of diffeomorphic methods and improved cell segmentation, we developed a CellOrganizer pipeline for use in DPB4 to construct models of the 4D distributions of actin and 8 of its regulators during the response of T cells to antigen presentation. Read more

 

Multi-scale Hybrid Methodology

The hybrid methodology, coMD, that we have recently developed [1] has been recently extended to construct the energy landscape near the functional states of LeuT (Fig 1) [2]. This is the first energy landscape constructed for this NSS family member. Read more

 


Insights into the cooperative dynamics of AMPAR

Comparative analysis of AMPAR and NMDAR dynamics reveals striking similarities, opening the way to designing new modulators of allosteric interactions. Read more


Improved Sampling of Cell-Scale Models using the WE Strategy

The WE strategy for orchestrating a large set of parallel simulations has now been extended to spatially resolved cell-scale systems. The WESTPA implementation of WE has been used to control MCell simulations, including models built using a BioNetGen-CellOrganizer pipeline for situating complex biochemistry within spatially realistic cell models. Read more

Mouse visual cortex
Anatomy and Function of an Excitatory Network in the Visual Cortex

MMBioS researcher Greg Hood’s collaboration with Wei-Chung Allen Lee of Harvard University and R. Clay Reid of the Allen Institute for Brain Science concerning the reconstruction of an excitatory nerve-cell network in the mouse brain cortex at a subcellular level using the AlignTK software has been published in Nature. Read more

 

Molecular Mechanism of Dopamine Transport by hDAT

Dopamine transporters (DATs) control neurotransmitter dopamine (DA) homeostasis by reuptake of excess DA, assisted by sodium and chloride ions. The recent resolution of DAT structure (dDAT) from Drosophila permits us for the first time to directly view the sequence of events involved in DA reuptake in human DAT (hDAT). Read more

 

 

 

figure good 170Synaptic Facilitation Revealed

An investigation of several mechanisms of short-term facilitation at the frog neuromuscular junction concludes that the presence of a second class of calcium sensor proteins distinct from synaptotagmin can explain known properties of facilitation. Read more

 

langmead2 200Sparse Graphical Models of Protein:Protein Interactions

DgSpi is a new method for learning and using graphical models that explicitly represent the amino acid basis for interaction specificity and extend earlier classification-oriented approaches to predict ΔG of binding. Read more

 

Picture1 180Advancing Parallel Bio-simulations

A new non-Markovian analysis can eliminate bias in estimates of long-timescale behavior, such as the mean first-passage time for the dissociation of methane molecules in explicit solvent. Read more

 

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