protein structure initiative mission statement. the long- range goal of the protein structure...
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Protein Structure Initiative
Mission Statement. The long-range goal of the Protein Structure Initiative is to make the three-dimensional atomic-level structures of most proteins easily obtainable from knowledge of their corresponding DNA sequences.
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Goals and Milestones
SubCommittee
Helen BermanDavid Eisenberg
Wayne Hendrickson Andrzej JoachimiakGaetano Montelione
George Phillips Janna Wehrle
Stephen Burley Ian Wilson
PSI Goals and Milestones Document
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Integration of PSI activitiesand organization of metrics of progress
towards these goals is being done by the PSI Knowledge Base
Using Goals and Milestones Document as a guide, with input from other PSI Steering Committee sub-committees
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Primary Goals of PSI2
Large-scale Protein Structure Determination3,000 Experimental Structures in PSI2
In addition to ~ 1300 in PSI1 4,300 totalLarge (BIG) and Very-large (Mega) Domain Families 70% effortBiomedical Targets 15% effortCommunity-nominated Targets 15% effort
Broad structural coverage of protein sequences leveraged by homology modeling
New Technologies and Infrastructure that accelerate the process and impact of 3D protein structure analysis
Proactive Community Outreach
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PSI provides 2 new 3D structures to PDB per day
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Projected for Jul 1, 2010: 4646 structures
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Representative Structures from
BIG, Mega, Meta Families - 70% effort
Sequence family U’
Sequence family U“Network Activity”
“ModelingFamilies”
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630 NESG Protein Structures
Mar 1 2009
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Draft 1: 3 small MEGA familiesMarch 2007
OB - fold ( 2.40.50.140 )
selected, cloned, soluble, purified, screened, in PDB ( PSI-1 / PSI-2 )
401 147 96 33 93 13 ( 3 / 10 )20 / 259 modeling families closed by NESG
Tol - B ( 2.120.10.30 )
selected, cloned, soluble, purified, screened, in PDB ( PSI-1 / PSI-2 )
541 107 26 13 13 4 ( 0 / 4 )14 / 355 modeling families closed by NESG
FAD/NAD(P) – binding domain ( 3.50.50.60 )
selected, cloned, soluble, purified, screened, in PDB ( PSI-1 / PSI-2 )
632 449 132 53 40 6 ( 1 / 5 )25 / 742 modeling families closed by NESG
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Novel Leverage Sep 1 2000 - Sept 15 2008
J. Liu, et al Nature Biotech 2007
PSI-BLAST
E-value < 1e-10
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Novel Leverage Sep 1 2000 - Sept 15 2008
R. Nair et al J Struct Funct 2009
In PSI2 Yr 3, PSI provided 20% of Structures and ~60% of Novel Leverage of all US Structures Submitted to the PDB
In recent years, PSI Structures have ~ 6.5 - fold higher leverage/structure than nonSG Structures (i.e. ~ 100 models / structure)
Incremental coverage of UniProt since Jan 1, 2000 is 24%
PSI has provided 25% (6% / 24%) of the new coverage of UniProt since Jan 1, 2000
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Structural Coverage has advanced significantly in the past 10 Years
PSI has made significant contributions
… but there is still a lot left to do…
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Protein
Sequences
Biological Function
3D Structure
Deducing Biological Function from 3D Structure not a primary goal of
PSI2 project
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SG Can Enable Biology
SG can target networks / biological processes while still addressing the PSI goals of structural coverage.
SG technologies can be applied to prokaryotic, eukaryotic, human, and viral proteins.
Structural similarity can provide clues to distant evolutionary relationships, and hypotheses regarding potential biochemical functions.
Nature and locations of bound ligands can provide clues to biochemical function and mechanisms.
PSI Knowledge Base and PSI Materials Repository provide information, protocols, and reagents which will provide the basis for traditional hypothesis-driven research projects.
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Development of PSI - Biology
Sep 2007 PSI External Assessment
Jul 2008 Workshop on Homology Models for Biology
Jul 2008 PSI Directors Meeting
Sep 2008 PSI Directors White Paper
Oct 2008 Workshop on Visions for PSI3
Dec 2008 Recommendations of PSISteering Committee andAdvisory Committee
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Development of PSI - Biology
Sep 2007 PSI External Assessment
Jul 2008 Workshop on Homology Models for Biology
Jul 2008 PSI Directors Meeting: Visions for PSI3
Sep 2008 PSI Directors White Paper
Oct 2008 Halloween Workshop: Visions for PSI3
Dec 2008 Recommendations of PSISteering Committee andAdvisory Committee
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PSI Directors White Paper
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Opportunities for Structural Genomics
Large Domain Families - BIG, MEGA
Metagenomics: Structural Genomics of Ecological Niches
Organisms or Organelles
Systems Biology and Networks
Pathways and Large Multiprotein Complexes
Detailed structure / function / dynamic analysis across protein families
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Metagenomics
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Blue Nodes NESG Structures
P53
p53
**
*
*
apoptosisTLR
IL21(JAK)
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Bacterial FeS Cluster Assembly Operons
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StructureElectrostatic
SurfaceConsurfSurface
ElectrostaticSurface
ConsurfSurface
B.subtilis IscU(NMR)
Kornhaber, Montelione
H.influenzae IscU(NMR)
Ramelot, Kennedy
S.pyogenes IscU(X-ray)Liu, Kim
E.coli SufE(X-ray)
Kuzin, Hunt
E.coli YgdK/SufE(NMR)
Liu, Szyperski
180°
Magenta - strongly conserved
Cyan - less conserved
Blue –positive charge
Red – negative charge
IscUs
YgdK / SufE
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Evolution of Structure and Function
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Development of PSI - Biology
Sep 2007 PSI External Assessment
Jul 2008 Workshop on Homology Models for Biology
Jul 2008 PSI Directors Meeting
Sep 2008 PSI Directors White Paper
Oct 2008 Holloween Workshop on Visions for PSI3
Dec 2008 Recommendations of PSISteering Committee andAdvisory Committee
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Connecting with HTP Biology
The Network organization of PSI2 (OMG) is a model of how to organize large-scale biology project
Technology development, particularly for membrane proteins, should continue as a major component of PSI.
Can Structural Genomics Synergize with other HTP Omics Programs?
Our most abundant product is PROTEIN SAMPLES
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Connecting with HTP Biology
Large-scale Protein Interaction Networks
HTP Biochemical Function Discovery
HTP Gene Knock-out and Knock-in Experiments
Large-scale Expression Array; Proteomics; Metabonomics Studies
Large-scale RNA interference Studies
Etc…
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HTPStructure
DeterminationCenter
HTPStructure
DeterminationCenter
HTPStructure
DeterminationCenter
HTPStructure
DeterminationCenter
PSI3 - Biology
Membrane ProteinCenter
Membrane ProteinCenter
Membrane ProteinCenter
Membrane ProteinCenter
Membrane ProteinCenter
Membrane ProteinCenter
Membrane ProteinCenter
Membrane ProteinCenter
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
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Centers for HTP Structure Determination
• Determination of Protein Structures using HTP Pipeline Cababilities
• Development of technology to improve the pipeline and to attack increasingly difficult proteins and complexes
• Bioinformatics analysis of potential targets, solved structures, and homology models
• Dissemination of Information and Materials via the Materials Repository and Knowledge Base
• Collaborative research with other members of the PSI Network to be established through PSI RFAs and PARs
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Membrane Structure Production Centers
Technology Development for Membrane Protein Targets
Contribution in producing Network Targets
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HTP Enabled Biology
Close collaborations with HTP Structure Production Centers
Rolling Application Process 3 - 4 per year
Subcontracts to Large-scale / Membrane Protein Centers for Structure Production
Challenge - who will write these proposals??
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Technology Development
Central Task of Large-scale Centers
Membrane Protein Centers are Technology-Development Centers
PSI Program Announcements for Targeted Technology Development and Modeling Research Programs Enabling SG
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HTPStructure
DeterminationCenter
HTPStructure
DeterminationCenter
HTPStructure
DeterminationCenter
HTPStructure
DeterminationCenter
PSI3 - Biology
Integrated Network
Integration via PSI KB and Materials Repository
Membrane ProteinCenter
Membrane ProteinCenter
Membrane ProteinCenter
Membrane ProteinCenter
Membrane ProteinCenter
Membrane ProteinCenter
Membrane ProteinCenter
Membrane ProteinCenter
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
HTP Enabled StructuralBiology
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PSI3 - Biology
http://www.nigms.nih.gov/Initiatives/PSI
Concept Clearance: High-Throughput Structural Biology
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PSI3 - Biology
http://www.nigms.nih.gov/Initiatives/PSI
Concept Clearance: High-Throughput Structural Biology
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PSI3 - Biology
Concept Clearance: High-Throughput Structural Biology