Difference between revisions of "Divide and Conquer Biological Challenges"

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(* We need to have an XOR logic gate produced.)
(* We need to have an XOR logic gate produced.)
Line 19: Line 19:
 
=== * We need to have an XOR logic gate produced. ===
 
=== * We need to have an XOR logic gate produced. ===
 
'''Existing Logic Gates'''
 
'''Existing Logic Gates'''
*NOT:<br>
+
*'''NOT''':<br>
 
# [http://partsregistry.org/Part:BBa_I732205 I732205 (NOT/ Dual-repressed NOR)]  
 
# [http://partsregistry.org/Part:BBa_I732205 I732205 (NOT/ Dual-repressed NOR)]  
*AND: <br>
+
<br>
'''Existing But Complex'''
+
*'''AND''': <br>
 +
[http://www.bio.davidson.edu/Courses/Synthetic/papers/ANDgate.pdf '''Existing But Complex''']
 
[[Image:AND_Gate.png]]<br>
 
[[Image:AND_Gate.png]]<br>
 
<br>
 
<br>
 
'''Simple But Hypothetical'''
 
'''Simple But Hypothetical'''
 
[[Image:Tet_AND_Lac.jpg]]
 
[[Image:Tet_AND_Lac.jpg]]
[[Image:AND_Table.jpg]]
+
[[Image:AND_Table.jpg]]<br>
 
+
We would need to have: <br>
*NAND:<br>
+
# [http://partsregistry.org/wiki/index.php?title=Part:BBa_R0040 Starts with pTetR]
 +
# over production of LacI<sup>Q</sup> repressor
 +
# over production of TetR repressor<br>
 +
<br>
 +
*'''NAND''':<br>
 
# [http://partsregistry.org/Part:BBa_I732914 I732914]
 
# [http://partsregistry.org/Part:BBa_I732914 I732914]
*NOR:<br>
+
<br>
 +
*'''NOR''':<br>
 
# [http://partsregistry.org/Part:BBa_I732916 I732916]<br>
 
# [http://partsregistry.org/Part:BBa_I732916 I732916]<br>
 
# [http://partsregistry.org/Part:BBa_I732917 I732917]\<br>
 
# [http://partsregistry.org/Part:BBa_I732917 I732917]\<br>
*Inverters:<br>
+
<br>
 +
*'''Inverters''':<br>
 
''Self-Contained Inverters''
 
''Self-Contained Inverters''
 
# [http://partsregistry.org/Part:BBa_J23040 J23040 (AHL-dependent inverter)]<br>
 
# [http://partsregistry.org/Part:BBa_J23040 J23040 (AHL-dependent inverter)]<br>

Revision as of 15:16, 29 May 2008

IGEM2008 design.jpg

* We need to get the Lux/AHL system working.

* We need to get the Lsr/AI-2 system working.

Our summary of the Lsr system: Davidson/Missouri_Western_iGEM2008#Lsr_.28AI-2.29_cell_signaling_system

  • There are NO Lsr parts in the registry:
  • We will need to make BB parts for:
  1. LsrR and LsrK which are adjacent to each other in the E. coli genome. We could amplify them together with a total size of over 2600bp.
  2. Lsr promoter
  3. LuxS that produces DPD that somehow is converted to R-THMF.
  4. How do we get cells to make AI-2?

* We do NOT need to use additional chemical input signals (e.g., aTc and IPTG). We will use only AHL and AI-2 added exogenously.

* We need to have an XOR logic gate produced.

Existing Logic Gates

  • NOT:
  1. I732205 (NOT/ Dual-repressed NOR)


  • AND:

Existing But Complex AND Gate.png

Simple But Hypothetical Tet AND Lac.jpg AND Table.jpg
We would need to have:

  1. Starts with pTetR
  2. over production of LacIQ repressor
  3. over production of TetR repressor


  • NAND:
  1. I732914


  • NOR:
  1. I732916
  2. I732917\


  • Inverters:

Self-Contained Inverters

  1. J23040 (AHL-dependent inverter)

PoPS Output Inverters

  1. Q04121 (lac inverter)
  2. Q04400 (tet inverter)

* We need to figure out how to get cells to communicate in a sequence and not stop growing too soon.

  • What if AmpR is secreted and cells are not AmpR? This would prevent cells down the chain from responding too soon.