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USP – University of Sao Paulo
          LabPIB – Laboratório de Processamento de Informação Biológica
          http://labpib.fmrp.usp.br
          Prof. Dr. Vêncio
          rvencio@usp.br




Gene Expression: is it really complex or is it
just missing parts ?
Who are we ?
Who are we ?
Complex Systems
Complex Systems
Complex Systems
2+2>4
2+2>4
2+2=5


1) Do we know all parts to sum them up ?

2) What are the interactions among parts ?
Biological Motivation




                        Joyce & Palsson, Nat Rev Mol Cell Biol (2006)
Biological Motivation

                        ncRNA
                                RNA-protein interaction

                                 RNA-RNA interaction




                                    structuromics




                                            2012 update on Joyce & Palsson,
                                                Nat Rev Mol Cell Biol (2006)
Biological Motivation

                        ncRNA
                                RNA-protein interaction

                                 RNA-RNA interaction




                                    structuromics




                                            2012 update on Joyce & Palsson,
                                                Nat Rev Mol Cell Biol (2006)
Biological Motivation … today

                                ncRNA
                                        RNA-protein interaction

                                         RNA-RNA interaction




                                            structuromics




                                                    2012 update on Joyce & Palsson,
                                                        Nat Rev Mol Cell Biol (2006)
~ 5 μm




from wikipedia's “halobacterium” entry



                                  ~ 1 cm




                                                           Bonneau et al., Cell (2007)
from webmineral.com Mineralogy Database's “halite” entry
Bonneau et al., Cell (2007)
Bonneau et al., Cell (2007)
2+2=5


1) Do we know all parts to sum them up ?

2) What are the interactions among parts ?




                                  Bonneau et al., Cell (2007)
2+2=5


1) Do we know all parts to sum them up ?
       No, ncRNAs are still missing
2) What are the interactions among parts ?
       Some are known,
       but protein-RNA are missing




                                  Bonneau et al., Cell (2007)
ncRNA discovery by high-throughput sequencing RNA-seq




                                        Wang et al., Nat Rev Gen (2009)
ncRNA discovery by high-throughput sequencing RNA-seq




           Felipe ten Caten, Diego Martinez, Lívia Zaramela - PhD Candidates
ncRNA discovery by high-throughput sequencing RNA-seq




           Felipe ten Caten, Diego Martinez, Lívia Zaramela - PhD Candidates
ncRNA discovery by high-throughput sequencing RNA-seq




There is a transcript
but there is no protein
Protein-RNA interaction discovery by RIP-Seq




Very similar to known
Chip-seq but for RNA
interactions




                      from wikipedia's “ChIP-sequencing” entry

                      Lívia Zaramela - PhD Candidate
Protein-RNA interaction discovery by RIP-Seq




                                     Support Vectors




                      Marcos Abraão - PhD Candidate
So... back to the original question



  is it really complex or is it just missing parts?
So... back to the original question



  is it really complex or is it just missing parts?
  Probably both.




               http://www.systemsbiology.org.au/
USP – University of Sao Paulo
LabPIB – Laboratório de Processamento de Informação Biológica
http://labpib.fmrp.usp.br
Prof. Dr. Vêncio
rvencio@usp.br
USP – University of Sao Paulo
          LabPIB – Laboratório de Processamento de Informação Biológica
          http://labpib.fmrp.usp.br
          Prof. Dr. Vêncio
          rvencio@usp.br




Thank you for your attention!



      “ Simplicity is a great virtue but it requires hard work to
      achieve it and education to appreciate it. And to make
      matters worse: complexity sells better ”
                                              -- E. Dijkstra.

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IEA - Expressão gênica: é complexo mesmo ou só estão faltando partes?

  • 1. USP – University of Sao Paulo LabPIB – Laboratório de Processamento de Informação Biológica http://labpib.fmrp.usp.br Prof. Dr. Vêncio rvencio@usp.br Gene Expression: is it really complex or is it just missing parts ?
  • 9. 2+2=5 1) Do we know all parts to sum them up ? 2) What are the interactions among parts ?
  • 10. Biological Motivation Joyce & Palsson, Nat Rev Mol Cell Biol (2006)
  • 11. Biological Motivation ncRNA RNA-protein interaction RNA-RNA interaction structuromics 2012 update on Joyce & Palsson, Nat Rev Mol Cell Biol (2006)
  • 12. Biological Motivation ncRNA RNA-protein interaction RNA-RNA interaction structuromics 2012 update on Joyce & Palsson, Nat Rev Mol Cell Biol (2006)
  • 13. Biological Motivation … today ncRNA RNA-protein interaction RNA-RNA interaction structuromics 2012 update on Joyce & Palsson, Nat Rev Mol Cell Biol (2006)
  • 14. ~ 5 μm from wikipedia's “halobacterium” entry ~ 1 cm Bonneau et al., Cell (2007) from webmineral.com Mineralogy Database's “halite” entry
  • 15. Bonneau et al., Cell (2007)
  • 16. Bonneau et al., Cell (2007)
  • 17. 2+2=5 1) Do we know all parts to sum them up ? 2) What are the interactions among parts ? Bonneau et al., Cell (2007)
  • 18. 2+2=5 1) Do we know all parts to sum them up ? No, ncRNAs are still missing 2) What are the interactions among parts ? Some are known, but protein-RNA are missing Bonneau et al., Cell (2007)
  • 19. ncRNA discovery by high-throughput sequencing RNA-seq Wang et al., Nat Rev Gen (2009)
  • 20. ncRNA discovery by high-throughput sequencing RNA-seq Felipe ten Caten, Diego Martinez, Lívia Zaramela - PhD Candidates
  • 21. ncRNA discovery by high-throughput sequencing RNA-seq Felipe ten Caten, Diego Martinez, Lívia Zaramela - PhD Candidates
  • 22. ncRNA discovery by high-throughput sequencing RNA-seq There is a transcript but there is no protein
  • 23. Protein-RNA interaction discovery by RIP-Seq Very similar to known Chip-seq but for RNA interactions from wikipedia's “ChIP-sequencing” entry Lívia Zaramela - PhD Candidate
  • 24. Protein-RNA interaction discovery by RIP-Seq Support Vectors Marcos Abraão - PhD Candidate
  • 25. So... back to the original question is it really complex or is it just missing parts?
  • 26. So... back to the original question is it really complex or is it just missing parts? Probably both. http://www.systemsbiology.org.au/
  • 27. USP – University of Sao Paulo LabPIB – Laboratório de Processamento de Informação Biológica http://labpib.fmrp.usp.br Prof. Dr. Vêncio rvencio@usp.br
  • 28. USP – University of Sao Paulo LabPIB – Laboratório de Processamento de Informação Biológica http://labpib.fmrp.usp.br Prof. Dr. Vêncio rvencio@usp.br Thank you for your attention! “ Simplicity is a great virtue but it requires hard work to achieve it and education to appreciate it. And to make matters worse: complexity sells better ” -- E. Dijkstra.