Transformative High Resolution Cryo-Electron Microscopy Jon Lorsch, - - PowerPoint PPT Presentation
Transformative High Resolution Cryo-Electron Microscopy Jon Lorsch, - - PowerPoint PPT Presentation
Transformative High Resolution Cryo-Electron Microscopy Jon Lorsch, PhD Director National Institute of General Medical Sciences NIH Working Group: NEI, NIGMS, NCI, NHLBI, NIAID, NIDA, NIDDK, NINDS, ORIP, NIAAA, NIBIB Inter-agency Working
Working Group Members
Co-Chairs Jon Lorsch (NIGMS) Cathy Lewis and Susan Gregurick Paul Sieving (NEI) Belinda Seto Working Group Coordinators: Mary Ann Wu (NIGMS) Jim Deatherage (NIGMS) Houmam Araj (NEI) OSC Ravi Basavappa Becky Miller Ellie Murcia IC Members Dan Gallahan (NCI) John (Randy) Knowlton (NCI) Alison Yao (NIAID) Rao Rapaka (NIDA) Salvatore Sechi (NIDDK) Paula Flicker (NIGMS) Denis Buxton (NHLBI) Manjit Hanspal (NHLBI) Jue Chen (NHLBI) James Luo (NHLBI) Margaret Sutherland (NINDS) Malgorzata Klosek (ORIP)
Why Now? New Technological Breakthroughs in Cryo-EM
3 Old Methods 1) New electron microscopy technology dramatically improves our ability to see biological molecules New Methods
TRPV1 Ion Channel: Mediates burn sensation, Yifan Cheng UCSF
2) New motion correction methods resolve blurring of images due to movement of particles in electron beam
Rotavirus Particles Niko Grigorieff, Janelia Farms
The U.S. is Rapidly Falling Behind Europe and Asia in Cryo-EM Infrastructure
Initial Investment, 1-2 CryoEM microscopes, local facility Significant Investment, 3-4 CryoEM microscopes, regional facility Major Investment, 5+ CryoEM microscopes, HTP comprehensive facility Planned investment
# Request for Information (RFI): Transformative High-Resolution Cryo-Electron Microscopy
Notice Number: NOT-RM-16-022
Release Date: June 24, 2016 Response Date: August 8, 2016
Need and Capacity
- Overwhelming support
for National Centers for automated high- resolution cryoEM data collection for SPA
- US is falling behind
- CryoET expertise,
resources also needed
Training and Workforce
- Expertise in all stages
required for success
- 2 levels of trainees:
Structural biologists Neophyte biologists
- Hands-on training at
Centers essential
- Tutorials, online
materials at home Technology Development
- HTP pipeline for thin
sections of cells
- Optics and
instrumentation
- Segmentation and
subtomogram averaging
- Data management and
storage needs
, 46 responses
Ebola virus neutralization by protective human antibodies (9Å)
Two human monoclonal antibodies, mAb100 and mAb114 in combination, protect nonhuman primates against all signs of Ebola virus disease.
Misasi et al. (2016) Science 351: 1343
Zika Virus 3.8Å
7
Sirohi et al. (2016) Science 352: 467,
HSP90-Cdc37-Cdk4 Complex at 3.9Å
8
- HSP90 Interacts with
60% of human kinome.
- Cdk4 kinase is trapped
and stabilized in the complex.
- HSP90 inhibition leads
to degradation of kinases, including
- ncoproteins vSrc,
bRafV600E, Her2.
- HSP90 inhibitors are
undergoing clinical trials as cancer therapeutics.
Verba, K.A. et al. (2016) Science, 352:1542
Challenges and Strategies
Challenges ● Cost of instrumentation and upkeep
- Access to high performance data collection ●
Limited base of expert investigators Strategy ● Open access to state of the art instrumentation ● Build an expert workforce ● Improve and extend technology ● Create economies of scale Comprehensive Centers ● Three centers ● Research assistance and training 20-30 labs/year ● High-throughput data collection services ● Each center 4 microscopes, 7-8 FTEs, $4M TC/year ● R01/R21s to develop new technology & methods Long Term Plan ● High throughput data collection services at three centers, each $2M TC/year ● Interagency WG (NIH, NSF, DOE, Beckman)
Glutamate dehydrogenase (1.8A) Merk et al. Cell 165, 1698, 2016
Proposed Budget
10
Comprehensive Centers (3)
Year 1 Year 2 Year 3 Year 4 Year 5
Total Equipment (4 microscopes/center)
$22M $22M $22M
$66M Operations
$4M $6.4M $10.5M $10.5M $10.5M
$41.9M User Training & Service
(4 FTEs/center)
$0.6M $1.2M $2.5M $2.5M $2.5M
$9.3M
$26.6M $29.6M $35M $13M $13M
$117.2M
Research Grants (R21,R01)
TC Yearly
Total Cryoelectron Tomography R&D
$3M
$15M
Single Particle R&D
$2.4M
$12M
$5.4M
$27M All Activities
Year 1 Year 2 Year 3 Year 4 Year 5
Total
$32M $35M $40.4M $18.4M $18.4M
$144.2M