The Human Genome Project
Two DNA Sequences Seen in Gel Electrophoresis
March 2009
You put autoradiographic film on top of it and then you develop it. What you see here is the sequence of 2 strands of DNA. It takes 4 lanes to see a single sequence. The other thing that you can see here is you get very good separation between the bands in the lower molecular weight range but as one moves up the gel, the bands get closer and closer together and this is one of the limitations of this technology. This technology can be used to read in to sequence maybe 800 to 900 bases but above that, the bases are simply too close together to read so one simply does this on a lot of different strands to assemble a DNA sequence. Now, Sanger did a number of very important contributions, one of them being Sanger sequencing.
Two DNA Sequences |
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- Introduction
- How Do We Obtain Genetic Information?
- Cell Cross-Section
- Different Cell Types
- What Happens When You Sit Outside in the Sun?
- Melanoma
- DNA is the Altered Target in Cancer Cells
- DNA Structure
- How to Tackle a Problem as Difficult as Cancer?
- Sequencing DNA
- More on DNA Structure
- Replicating a Strand of DNA
- Developing the Deoxy Chain Terminiation Sequence
- Reading a DNA Sequence
- Gel Electrophoresis
- Two DNA Sequences Seen in Gel Electrophoresis
- Overlapping Pieces of DNA
- Requirements to Sequence the Human Genome?
- Advances in Sanger Sequencing
- Sequencing with Fluorescent Dye
- Advances in Fluorescent Sequencing
- Celera Genomics
- Capacity: 96 Capillary Sequencing
- Computers and the Human Genome Project
- Where are We Today?
- What Have We Learned From Genome Sequences?
- What Can We Do With Sequenced Genomes?
- Transcriptional Profiling (TP)
- Different Technologies to Produce Microarrays
- Utilizing Microarrays to Measure Gene Expression
- Hyrbidization to an Affymetrix Array
- Gene Expression Comparison Between Samples
- Gene Expression Map
- Proteomic-Based Strategies
- Example of a Single Gene
- Proteomics
- How Do We Quantify Proteins?
- Differentiate Between Control and Disease State
- Mass Spectrometry
- Electrospray Ionization FT-ICR Mass Spectrometer
- LC-ESI-TOF vs LC-FT-ICR Mass Spectrometry
- What's the Short-term Payoff?
- What's the Long-term Payoff?
- Diagram of Pathways Involved in Steroid Metabolism
- Questions?
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