1 / 39

Protein Structure Initiative

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. Goals and Milestones SubCommittee.

elgin
Download Presentation

Protein Structure Initiative

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 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.

  2. Goals and MilestonesSubCommittee Helen Berman David Eisenberg Wayne Hendrickson Andrzej Joachimiak Gaetano Montelione George Phillips Janna Wehrle Stephen Burley Ian Wilson PSI Goals and Milestones Document

  3. 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

  4. Primary Goals of PSI2 Large-scale Protein Structure Determination 3,000 Experimental Structures in PSI2 In addition to ~ 1300 in PSI1 4,300 total Large (BIG) and Very-large (Mega) Domain Families 70% effort Biomedical Targets 15% effort Community-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

  5. PSI provides 2 new 3D structures to PDB per day

  6. Projected for Jul 1, 2010: 4646 structures

  7. Sequence family U Sequence family U’ Representative Structures from BIG, Mega, Meta Families - 70% effort “Network Activity” “Modeling Families”

  8. 630 NESG Protein Structures Mar 1 2009

  9. Draft 1: 3 small MEGA families March 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

  10. Novel Leverage Sep 1 2000 - Sept 15 2008 PSI-BLAST E-value < 1e-10 J. Liu, et al Nature Biotech 2007

  11. Novel Leverage Sep 1 2000 - Sept 15 2008 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 R. Nair et al J Struct Funct 2009

  12. Structural Coverage has advanced significantly in the past 10 Years PSI has made significant contributions … but there is still a lot left to do…

  13. 3D Structure Protein Sequences Biological Function Deducing Biological Function from 3D Structure not a primary goal of PSI2 project

  14. 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.

  15. 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 PSI Steering Committee and Advisory Committee

  16. 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 PSI Steering Committee and Advisory Committee

  17. PSI Directors White Paper

  18. 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

  19. Metagenomics

  20. Blue Nodes NESG Structures TLR apoptosis * * p53 * P53 * IL21(JAK)

  21. Bacterial FeS Cluster Assembly Operons

  22. Consurf Surface Electrostatic Surface Consurf Surface 180° Electrostatic Surface IscUs Structure B.subtilis IscU (NMR) Kornhaber, Montelione Cyan - less conserved S.pyogenes IscU (X-ray) Liu, Kim Red – negative charge H.influenzae IscU (NMR) Ramelot, Kennedy E.coli YgdK/SufE (NMR) Liu, Szyperski Magenta - strongly conserved Blue –positive charge E.coli SufE (X-ray) Kuzin, Hunt YgdK / SufE

  23. Evolution of Structure and Function

  24. 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 PSI Steering Committee and Advisory Committee

  25. 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

  26. 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…

  27. PSI3 - Biology HTPStructure Determination Center HTPStructure Determination Center HTPStructure Determination Center HTPStructure Determination Center Membrane Protein Center Membrane Protein Center Membrane Protein Center Membrane Protein Center Membrane Protein Center Membrane Protein Center Membrane Protein Center Membrane Protein Center HTP Enabled Structural Biology HTP Enabled Structural Biology HTP Enabled Structural Biology HTP Enabled Structural Biology HTP Enabled Structural Biology HTP Enabled Structural Biology HTP Enabled Structural Biology HTP Enabled Structural Biology

  28. 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

  29. Membrane Structure Production Centers Technology Development for Membrane Protein Targets Contribution in producing Network Targets

  30. 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??

  31. 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

  32. PSI3 - Biology Integrated Network Integration via PSI KB and Materials Repository HTPStructure Determination Center HTPStructure Determination Center HTPStructure Determination Center HTPStructure Determination Center Membrane Protein Center Membrane Protein Center Membrane Protein Center Membrane Protein Center Membrane Protein Center Membrane Protein Center Membrane Protein Center Membrane Protein Center HTP Enabled Structural Biology HTP Enabled Structural Biology HTP Enabled Structural Biology HTP Enabled Structural Biology HTP Enabled Structural Biology HTP Enabled Structural Biology HTP Enabled Structural Biology HTP Enabled Structural Biology

  33. PSI3 - Biology http://www.nigms.nih.gov/Initiatives/PSI Concept Clearance: High-Throughput Structural Biology

  34. PSI3 - Biology http://www.nigms.nih.gov/Initiatives/PSI Concept Clearance: High-Throughput Structural Biology

  35. PSI3 - Biology Concept Clearance: High-Throughput Structural Biology

More Related