IGEM:Cambridge/2008/PresentationOutline: Difference between revisions
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*The agr-peptide signalling system. | *The agr-peptide signalling system. | ||
**Assumptions. | **Assumptions. | ||
**Results: Step-like behaviour, system highly sensitive to basal rates of expression. | **Results: Step-like behaviour, system highly sensitive to basal rates of expression. | ||
*Pattern formation. | *Pattern formation. | ||
**Some simple models. | **Some simple models. | ||
**Patterns with agr-quorum sensing systems: competing populations. | **Patterns with agr-quorum sensing systems: competing populations. | ||
*Further questions: Discrete models, spatial pattern generation with a single signalling molecule. | *Further questions: Discrete models, spatial pattern generation with a single signalling molecule. |
Revision as of 08:05, 26 October 2008
Voltage
- KDP
- K+ ATPase, import pump
- PCRed from genome
- OsmY
- Flame Photometry
- Data and graphs
- GluR0
- Glutamate gated K+ channel
- From Synechosystis
- Constitutive Promoter
- Voltage Output
- Pictures
Peptide Signaling
- AGR System
- Sender & Reciever
- Compared to Lux
- More robust, specific
- Controlled secretion, not membrane diffusion
- Multichannel signaling (no crosstalk)
- Requires expression of membrane channels
Bacillus
- About Bacillus
- Pretty Pictures
- Best-characterized Gram Positive
- Very safe
- Genome Sequenced
- Protein Secretion
- Not compatible with Gram-neg promoters/RBS
Techniques/Tools:
- Chromosomal Integration
- Single Copy
- Cool diagram: single vs. double x-over
- Detection: amylase assay & PCR
- InFusion
- New Vectors
- Bacillus RBS & Promoters
- Two Constituitive, Two Inducible
- Culled from existing vectors
- Picture of Bacillus expressing GFP with pUpp
- New GFP
Modeling
- The agr-peptide signalling system.
- Assumptions.
- Results: Step-like behaviour, system highly sensitive to basal rates of expression.
- Pattern formation.
- Some simple models.
- Patterns with agr-quorum sensing systems: competing populations.
- Further questions: Discrete models, spatial pattern generation with a single signalling molecule.