Mining heterogeneous data: Understanding systems at the level of complexes and networks
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Transcript of Mining heterogeneous data: Understanding systems at the level of complexes and networks
Mining heterogeneous dataUnderstanding systems at the level of complexes and networks
Lars Juhl Jensen
the cell cycle
grow and divide
one cell
two cells
four phases
G1 phase
growth
S phase
DNA replication
G2 phase
growth
M phase
cell division
regulation
gene expression
protein complexes
phosphorylation
targeted degradation
gene expression
cell cultures
S. cerevisiae
synchronization
microarrays
time courses
Gauthier et al., Nucleic Acids Research, 2007
cycling genes
scoring scheme
shape
magnitude
benchmarking
Gauthier et al., Nucleic Acids Research, 2007
protein complexes
interaction data
S. cerevisiae
Jensen & Bork, Science, 2008
high error rate
scoring scheme
von Mering et al., Nucleic Acids Research, 2005
calibrate against KEGG
quality threshold
temporal network
time of peak mRNA level
time of protein synthesis
de Lichtenberg, Jensen et al., Science, 2005
de Lichtenberg, Jensen et al., Science, 2005
hypothesis
just-in-time assembly
de Lichtenberg, Jensen et al., Cell Cycle, 2007
how can we test it?
evolution
microarray time courses
S. pombe
H. sapiens
A. thaliana
reanalysis
cycling genes
same algorithm
cross-species comparison
orthologous genes
sequence similarity
Jensen, Jensen, de Lichtenberg et al., Nature, 2006
protein complexes
DNA polymerases
Jensen, Jensen, de Lichtenberg et al., Nature, 2006
all cell-cycle complexes
Jensen, Jensen, de Lichtenberg et al., Nature, 2006
time of peak mRNA level
time of action
just-in-time assembly
generalize to metabolism
linear pathways
deoxynucleotide synthesis
just-in-time flux
cell-cycle phenotypes
H. sapiens
siRNA screen
comparison with expression
phosphorylation
CDK substrate
low-throughput data
high-throughput data
NetPhosK
correlation
Jensen, Jensen, de Lichtenberg et al., Nature, 2006
Jensen, Jensen, de Lichtenberg et al., Nature, 2006
bias
correlated changes
Jensen, Jensen, de Lichtenberg et al., Nature, 2006
Jensen, Jensen, de Lichtenberg et al., Nature, 2006
co-evolution
layers of regulation
summary
reanalysis
integration
high-throughput data
biological insights
Acknowledgments
Thomas Skøt JensenUlrik de Lichtenberg
Søren BrunakPeer Bork
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