grant

Modeling and Interacting with the Visible Molecular Cell

Organization SCRIPPS RESEARCH INSTITUTE, THELocation LA JOLLA, UNITED STATESPosted 15 Sept 2016Deadline 31 Jul 2026
NIHUS FederalResearch GrantFY20253-D3-D modeling3-Dimensional3D3D modelingActinsAddressArticulationAutomobile DrivingBacterial GenomeBacterial ModelBiologicalCell BodyCell modelCellsCellular modelCollaborationsCommunitiesComplexComputational BiologyComputer softwareDataData BasesData SetDatabasesDendritic SpinesDevelopmentEducation and OutreachElectronsEperythrozoonGenerationsGenomeGlassGoalsHaemobartonellaHeterogeneityImageInstruction and OutreachIntuitionInvestigatorsKnowledgeLaboratoriesMacromolecular StructureMethodsMitochondriaModelingMolecularMolecular StructureMycoplasmaNegative Beta ParticleNegatronsOrganellesOrganismPancreatic beta CellPancreatic β-CellPropertyProteinsProteomicsResearch PersonnelResearchersResolutionRoentgen RaysSoftwareStructural ModelsStructureStructure of beta Cell of isletSystemTOMOTechnologyTestingTimeTomogramTraining and OutreachTutoring and OutreachValidationVisualizationWorkX-RadiationX-Ray RadiationX-rayXraybiologicbiological systemscomputational infrastructurecomputer biologycomputer infrastructuredata basedata integrationdendrite spinedevelopmentaldrivingexperienceimagingin silicointerestintuitiveliving systemmethod developmentmitochondrialmitochondrial genomemodel buildingmodel-based simulationmodels and simulationnovelpancreas beta cellpancreas β cellpancreatic b-cellprototyperesolutionssimulationstructural biologythree dimensionalthree-dimensional modelingtomographytoolusabilityuser-friendlyvalidations
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Full Description

PROJECT SUMMARY 
Integrative structural modeling of entire cells is a grand challenge actively being addressed by the structural 

biology  community.  The  complexity  and  heterogeneity  of  structural  models  of  entire  cells  poses  several 

distinct  challenges  that  are  testing  the  current  limits  of  technology  and  understanding.  To  tackle  these 

challenges, we are developing the CellPACK Suite, a functional prototype of an entire integrative structural 

modeling  pipeline.  This  pipeline  allows  users  to  gather  and  curate  data  from  proteomics  and  structural 

databases,  and  to  integrate this data  into  representative  structural  models  that  can be used  for  hypothesis 

generation and in-­silico testing. Our goal is to continue to develop, enhance, and harden this software, and 

to continue the application and validation of mesoscale modeling methods to biomedically relevant problems. 

The development will be driven by multiple collaborations with experimental and computational biologists with 

a focus on using mesoscale models to interpret and validate tomographic data, and on functional modeling 

of nucleoid  structure  in  the  context of  entire  bacterial  cells  and  mitochondria.  Throughout  this  work,  we  will 

work  in  the  classic  integrative  structural  biology  mode,  building  models  to  interpret  and  reconcile  3D 

experimental tomographic data, and using models to infer the detailed molecular structure within tomographic 

data sets of limited resolution. We plan to expand and harden our growing toolbox for structural integrative 

modeling by developing new methods to incorporate specific interactions between molecules and working to 

increase  the  range  of  systems  that  are  achievable.  We  are  also  committed  to  creating  user-­friendly  and 

targeted  tools  for  the  wider  biological  community and  have  created  prototypes  of  software  that  allow  facile 

model creation and hypothesis-­testing by non-­expert users. My laboratory brings 30 years of experience in 

gathering and integrating diverse biological data to depict the cellular mesoscale, and in the past 10 years, 

development of quantitative approaches to modeling the cellular mesoscale as computational infrastructure 

has  progressed  to  the  level  where  this  is  possible.  Throughout  this  work,  we  have  taken  a  practical,  but 

exploratory,  approach  to  methods  development,  building  novel  tools  to  address  the  underlying  questions 

posed by our experimental collaborators, and then hardening the most effective tools to make them accessible 

to  the  larger  computational biology  community.  We  intend  to  create  an accessible  and  effective  toolbox for 

integrative modeling at the cellular mesoscale, driven by collaborative applications that span from atoms to 

cells.

Grant Number: 5R01GM120604-09
NIH Institute/Center: NIH

Principal Investigator: Ludovic Autin

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