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Jeff Young, Botanist youngbiol'wwu'edu x3638 Office: BI412

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Enjoy the enormous amount of creativity and genius that is being expended, right ... the study of DNA sequence, chromatin structure, and DNA physical interactions in ... – PowerPoint PPT presentation

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Title: Jeff Young, Botanist youngbiol'wwu'edu x3638 Office: BI412


1
Jeff Young, Botanistyoung_at_biol.wwu.edux3638Offi
ce BI412
Office Hours M, W and R 2- 3 pm by
appointment.
Arabidopsis thaliana Genome-based, molecular
study of plant physiology and environmental
responses.
2
Course Goals
  • Introduce Genome Scale Research,
  • Develop skills in reading, understanding, and
    analyzing primary literature,
  • Enjoy the enormous amount of creativity and
    genius that is being expended, right now, in the
    biological sciences.

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  • Class participation general involvement in
    class,
  • Quizzes a figure from a recent paper will be
    presented,
  • Identify the paper,
  • Answer a basic question or two pertaining to the
    findings in the figure.

Quizzes drop one low score. - and - Present a
figure in class, replace a low quiz score.
5
Ill provide lots of potential papers, and help
in preparation.
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Genomics
  • Genomics is the study of the structure and
    function of the Genome of an Organism,
  • Structural Genomics the study of DNA sequence,
    chromatin structure, and DNA physical
    interactions in the cell,
  • where are the dynamic elements located on the
    Genome, and what are they?
  • Functional Genomics how does the structure of
    the genome
  • Give rise to particular cell types, tissues,
    organisms?
  • Respond to environmental and developmental
    requirements?
  • Become diseased?
  • Evolve?

7
Rough Outline
8
DNA Sequence Reagent for the 21st Century
Biology is in the midst of an intellectual and
experimental sea change.... ...essentially the
discipline is moving from being largely a
data-poor science to becoming a data-rich
science.
Vukmirovic and Tilghman, Nature 405, 820-822
(2000)
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Public Data Set
GBREL.TXT Genetic Sequence Data Bank
February 15 2001
NCBI-GenBank Flat File Release 122.0
Distribution Release Notes 10896781
loci, 11720120326 bases, from 10896781 reported
sequences
GBREL.TXT Genetic Sequence Data Bank
August 15 2002
NCBI-GenBank Flat File Release 131.0
Distribution Release Notes 18197119
loci, 22616937182 bases, from 18197119 reported
sequences
11
Complete Genomes(Draft or Polished)
  • 2001
  • 9 ARCHAEAL
  • 36 BACTERIAL
  • 6 EUKARYAL

2002 17 ARCHAEAL 106 BACTERIAL 8 (17)
EUKARYAL
2002 202 Organelles 968 Virus/Phage viroid
s, plasmids, etc
Schizosaccharomyces pombe (Feb., 2002) Fugu
rubripes (Aug., 2002) Yersinia pestis (Aug.,
2002)
12
Range?
  • 100s of genome projects in progress, both
    public
  • and private.

13
Why?
2 trillion /year 60,000 genes
0.5 trillion /year 35,000 genes
Animals
Plants
Bacteria
0.1 trillion /year 15,000 genes
14
Scientific Motivation?
Shared common set of highly homologous genes!
15
16 FEBRUARY 2001 VOL 291 SCIENCE, pp.
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Scientific Motivations?
Shared common set of highly homologous genes!
Relatively few parts!
17
http//www.bmm.icnet.uk/3dgenomics/
738 SCOP (Structural Classification of Proteins)
domains.
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Scientific Motivations?
Shared common set of highly homologous genes!
Relatively few parts!
Diversity is in the details!
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http//www.ebi.ac.uk/proteome/
Saccharomyces cerevisiae vs. Schizosaccharomyces
pombe (Feb. 21, 2002)
Nature 2002 Feb 21415(6874)
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Genome Project Goals
  • Establish an integrated WEB-based database and
    research interface,
  • Assemble physical and genetic maps,
  • Generate genomic and expressed (mRNA) gene
    sequences,
  • Identify and annotate the complete set of genes
    encoded within a genome,
  • Compile atlases of gene expression,
  • Accumulate functional data (functional genomics
    reverse genetics, proteomics, structural
    genomics, etc),
  • Characterize sequence diversity between and among
    organisms.
  • Establish an integrated WEB-based database and
    research interface,
  • Assemble physical and genetic maps,
  • Generate genomic and expressed (mRNA) gene
    sequences,
  • Identify and annotate the complete set of genes
    encoded within a genome,
  • Compile atlases of gene expression,
  • Accumulate functional data (functional genomics
    reverse genetics, proteomics, structural
    genomics, etc),
  • Characterize sequence diversity between and among
    organisms.

22
Web-based Database and Research Interfaces
http//www.ncbi.nlm.nih.gov/About/tools/index.html
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Literature (PubMed)
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Literature (OMIM)
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Literature (PROW)
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Genome Project Goals
  • Establish an integrated WEB-based database and
    research interface,
  • Assemble physical and genetic maps,
  • Generate genomic and expressed (mRNA) gene
    sequences,
  • Identify and annotate the complete set of genes
    encoded within a genome,
  • Compile atlases of gene expression,
  • Accumulate functional data (functional genomics
    reverse genetics, proteomics, etc),
  • Characterize sequence diversity between and among
    organisms.

27
Functional Genomics
Hieter P and Boguski M. Science 278, 601-02.
  • ...Functional genomics...is characterized by
    high throughput or large-scale experimental
    methodologies combined with statistical and
    computational analysis of the results.
  • ...the fundamental strategy in a functional
    genomics approach is to expand the scope of
    biological investigation from studying single
    genes or proteins to studying all genes or
    proteins at once in a systematic fashion.

28
Functional Genomics
Hieter P and Boguski M. Science 278, 601-02.
  • ...Computational biology...will perform a
    critical and expanding role in this area whereas
    structural genomics has been characterized by
    data management, functional genomics will be
    characterized by mining the data sets for
    particularly valuable information.
  • ...functional genomics promises to rapidly
    narrow the gap between sequence and function and
    to yield new insights into the behavior of
    biological systems."

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http//www.nsf.gov/pubs/2001/nsf01162/nsf01162.htm
l
30
10 Year Schedule
1- to 3-Year Goals
Develop essential genetic tools, including the
following
- comprehensive sets of sequence-indexed mutants,
accessible via database search, - whole-genome
mapping and gene expression DNA chips, - facile
conditional gene expression systems.
- Produce antibodies against, or epitope tags on,
all deduced proteins. - Describe global protein
profiles at organ, cellular, and subcellular
levels under various environmental conditions.
31
10 Year Schedule
3- to 6-Year Goals
- Create a complete library of full-length
cDNAs. - Construct defined deletions of linked,
duplicated genes. - Develop methods for directed
mutations and site-specific recombination. -
Describe global mRNA expression profiles at
organ, cellular, and subcellular levels under
various environmental conditions. - Develop
global understanding of post-translational
modification. - Undertake global metabolic
profiling at organ, cellular, and sub-cellular
levels under various environmental conditions.
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10 Year Schedule
10-Year Goals
- Artificial chromosomes. - Identify cis
regulatory sequences of all genes. - Identify
regulatory circuits controlled by each
transcription factor. - Determine biochemical
function for every protein. - Describe
three-dimensional structures of members of every
plant-specific protein family. - Undertake
systems analysis of the uptake, transport, and
storage of ions and metabolites. - Describe
globally protein-protein, protein-nucleic acid,
and protein-other interactions at organ,
cellular, and subcellular levels under various
environmental conditions. - Survey genomic
sequencing, and deep EST sampling from
phylogenetic node species. - Define a predictive
basis for conservation versus diversification of
gene function. - Compare genomic sequences within
species.
33
Post/Pre...Genomics
  • Pre Essentially the enormous complexity of a
    living organism overwhelmed existing analytical
    tools, and real progress came from approaches
    that ignored the complexity and focused on the
    component parts.
  • Post In the short term, the goal is to assign
    some element of function to each of the genes in
    an organism, and to do this with high-throughput,
    systematic approaches.

34
For Friday
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