# Presentation: 223691

## Committee membership

**Chris Somerville (Chair) **
**Michelle S. Broido (BERAC Chair)**
**John Pierce**
**Margaret Riley**
**Mel Simon**** **

## Charge to Committee

_**Task 1**_ – Assess BER’s progress toward its current long term Life Sciences PART measure.
_**Task 2**_ – Assess the appropriateness of BER’s current Life Sciences PART Measure.
_**Task 3**_ – Assess how well BER is positioned to make progress toward the proposed new long term Life Sciences PART measure.

## Current Life Sciences PART Measure

- By 2015, characterize the multi protein complexes (or the lack thereof) involving a scientifically significant fraction of a microbe’s proteins. Develop computational models to direct the use and design of microbial communities to clean up waste, sequester carbon, or produce hydrogen.

## BERAC Assessment

- In February 2006, the National Research Council (NRC) of the National Academies issued its “Review of the Department of Energy’s Genomics: GT: Program.” The NRC Committee was asked and responded to the following question:
***Question 1: ****Is the Genomics: GTL program, as currently designed, scientifically and technically well tailored to the challenges faced by the DOE in energy technology development and environmental remediation?*
***Answer****: yes*

## NRC recommendations

*The committee endorses DOE’s use of a systems approach to achieve its mission goals through Genomics: GTL and supports its plan to enlarge funding of the program to $200 million per year for basic research.*
*The committee suggests that plant biology research be included in the Genomics: GTL program*

## NRC endorsed a continued focus on the following areas for plants and microbes

*Description and then development of predictive models for how complex microbial consortia respond to natural and imposed selection.*
*Identification of the genomic diversity best suited to manipulation of Genomics: GTL target processes.*
*Characterization of genotypes and the genes and proteins that most strongly influence system function.dentification and functional characterization of the proteins and the complexes that underlie Genomics: GTL target processes.*
*Formulation of models that predict the function of these key cellular or organismal components in situ.*
*Development of strategies to improve the efficiency of these “molecular machines.”*
*Improving methods for analysis and interpretation of gene and protein function in heterologous systems, including both computational and experimental approaches.*

## Additional goals endorsed by NRC

*Improved technologies for surveying taxonomic and genetic diversity in target environments, including the development of tools for both culture-dependent and culture-independent methods and strategies to deal with ultrarare genomes.*
*Development of experimental tools, concepts, and mathematical methods that can model transient and stable states and identify the control points for particular system parameters.*
*Establishment of predictive models of microbial behavior during discrete phases of development and in response to external biotic and abiotic stimuli.*
*Development of new methods and instrumentation to measure key biological parameters that may be relevant to system function, including metabolite flow and protein function in vivo and in situ.*
*Establishment of methods to reproduce native ecologies in the laboratory or to analyze them in situ.*
*Understanding of the consequences and frequency of events that may alter population function, such as horizontal gene transfer, alterations of physical-chemical environments, and introduction of nonnative species.*

## BERAC conclusion

- Genomic: GTL’s investments in metagenomic research are laying a sound foundation for future modeling of microbial communities. BERAC believes that the program is on target to achieve a long-term grade of Excellent for this measure.
- If the program had continued with its plans to develop a high throughput user facility for the isolation and characterization of multiprotein complexes, it would likely have received a long term grade of Excellent for this original measure.

## Task 2 – Assess the appropriateness of BER’s current Life Sciences PART Measure.

- BER’s current Life Sciences PART Measure s include: Develop computational models to direct the use and design of microbial communities to clean up waste, sequester carbon, or produce hydrogen.
- BERAC finds that this goal is still highly relevant and critical to the long term success of the program.

## However

- Measure 2- Characterize the multiprotein complexes of significant fraction of a microbe’s proteins and
- When this PART Measure was developed, the Administration had made hydrogen a priority but had not yet added a focus on liquid transportation fuels such as cellulosic ethanol.
- BERAC recommends that the Life Science PART measure be modified to include work on plants and biofuels such as cellulosic ethanol that will be components of the programs in the new bioenergy centers.

## Proposed new PART measure

*By 2015, provide sufficient scientific understanding of plants and microbes to develop robust new strategies to produce biofuels, clean up waste, or sequester carbon. This includes the development of computational models to direct the use and design of improved organisms carrying out these processes.*

## Expected outcomes

- introduction of engineered traits in existing plant feedstocks
- development of new plant feedstocks for biofuel production or carbon sequestration
- improvements in feedstock deconstruction and decomposition
- introduction of engineered traits in organisms carrying out bioconversion, carbon capture, or bioremediation
- development of improved fermentation, bioconversion, or bioremediation organisms
- consolidation of biological processes for improved efficiency of biomass conversion, carbon capture, or bioremediation.

## Proposed grading system

- _Excellent_: Systems biology understanding and computational models that accurately describe the capabilities and potential of key microbes, microbial communities or plants for production of biofuels, to clean up waste, or to sequester carbon are developed and validated experimentally by the use or reengineering of those microbes, microbial communities or plants community based on model predictions.
- _Good:_ xxx are developed and validated by their consistency with available data.
- _Fair:_ xxx are developed but are not yet validated.
- _Poor:_ xxx is developed but robust computational models describing these systems are not developed.

## How will performance be measured?

- Expert Review every three years will rate progress towards achieving the long term measure, using the excellent – poor rating scale.
- Metrics next page

## Metrics will include

- Answers to scientific questions relevant to DOE mission areas answered by funded research.
- New molecular components identified in genetic and biochemical pathways relevant to DOE mission.
- New engineered plant traits and microbial capabilities developed.
- Development of fundamental knowledge that results in strategies and methodologies that impact enhanced feedstock production and facilitation of conversion of biomass to biofuel.
- Improvements in potential yield from a particular feedstock.
- Potential improvements in the efficiency of conversion, as determined by identification and modification of key steps in the conversion.
- Decrease in energy costs required to process feedstock to fermentation substrates.
- Papers published on research supported by this program.
- Patents filed for research supported by this program.

## Task 3 – 	Assess how well BER is positioned to make progress toward the proposed new long term Life Sciences PART measure.

- Although it is too early to measure the success of BER’s new Genomics: GTL initiatives, including the Bioenergy Research Centers and investments in plant feedstock genomics research, BERAC is confident that the Genomics: GTL Program is well poised to allow the program to earn a long term rating of excellent on the Life Sciences PART Measure.

## Rationale

- The scientific contributions that will derive from the research conducted by the two new Bioenergy Research Centers will, by definition, contribute directly to the PART measure.
- The Genomics: GTL program has already made a good start by developing a robust research portfolio and appropriate combination of experimentation, modeling, and tool development for modeling.
- The fundamental systems biology research of the entire Genomics: GTL program, from the genomic sequencing of individual microbes, microbial communities and the poplar tree to the development of imaging tools to new strategies for studying biological systems provide a solid underpinning for all Genomics: GTL research, including progress toward the Life Science PART measure.
- BER has already begun to invest in the type of plant research that is critical to the long term success of the Life Sciences PART Measure.