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{{IGEM:/Harvard/2006/Cyanobacteria}}
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<li id="current">[[IGEM:Harvard/2006/Cyanobacteria|1. Main Page]]</li>
<li>[[IGEM:Harvard/2006/Cyanobacteria/Notebook|2. Lab Notebook]]</li>
<li>[[IGEM:Harvard/2006/Cyanobacteria/Literature|3. Literature]]</li>
<li>[[IGEM:Harvard/2006/Cyanobacteria/Incubator|4. Incubator]]</li>
<li>[[IGEM:Harvard/2006/Cyanobacteria/Care|5. Care]]</li>
<li>[[IGEM:Harvard/2006/Cyanobacteria/Contacts|6. Contacts]]</li>
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==Agenda==
__TOC__
''See image at right for our long-term project outline.''
==Introduction==
[[Image:Cyanobacteria_Flowchart.png|thumb|Long-term project outline]]


For Monday 6/26
Welcome to the lab notebook for the Cyanobacteria oscillator project! The goal of our team, composed of four members, is to reconstruct the cyanobacterial circadian oscillator system into E. coli. Three proteins, KaiA, B, and C, have been shown to have an in-vitro phosphorylation state oscillation (Nakajima et al. 2005) by transcriptional-translational independent methods. If this system can be reconstituted in ''E. coli'', there are two important applications:


*Figure out optimal growing conditions (complete)
#'''Synthetic Biology''': Creating a functional, oscillating set of proteins is the next logical step from the synthetic "repressilator" system engineered by Elowitz et al. (2000). Although a good proof of concept, the "repressilator" lacks the stability needed from a robust oscillator such as the naturally evolved cyanobacterial oscillator. This robust oscillator could prove useful in an eventual biocircuit.
*Regrow cyanobacteria colonies (complete)
#'''Circadian Biology''': Cyanobacteria are the simplest model organisms for the study of circadian oscillation. Although circadian oscillation has been fairly well characterized, less is understood at the molecular level. By porting the oscillation system into ''E. coli'', one can begin to understand more precisely the pathways involved in the genomic oscillation of cyanobacteria.
*Draft email questions for Professor Golden (complete)


For Tuesday 6/27
For more background information on the ciracadian system, please check out our "Literature" section. Otherwise, day-to-day work can be found under the "Lab Notebook" tab; we will post major results of our work and links to the days as they become available. If you have questions or comments, feel free to contact us: information is located at the main Harvard iGEM 2006 page. Thanks!


*PCR crash course (complete)
*Picnic! (complete)
*Check first batch of colonies again (complete)
*Complete more research in preparation for Professor Golden (complete)
*Order primers (complete)


For Wednesday 6/28
Sincerely,<br>
Zhipeng, Hetmann, Dave, and Jeff


*Research transformation protocols (mostly complete)
*Start creating presentation for Friday
*Talk to Professor Golden (complete)
*Grow additional liquid cyanobacteria cultures (new order of PCC 7942 is not here yet)
*Finalize goals (work in cyanobacteria or in ''e. coli'')/ plan out the rest of summer (in progress)


For Thursday 6/29
'''Update 10/27/06:''' We believe we can express the three proteins into e. coli, and that there is interaction between A+C and possible interaction between B+C. See the Lab Notebook for more information.


*Research Sigma factors (on hold)
[[Image:102706_cyanoresult.jpg]]
*Design and order our first set of primers (for entire ''KaiABC'' sequence)  (complete)
*Make presentation for Friday (complete)


For Friday 6/30
==Outline of Findings and Signifigant Dates==
*07/05/06: The incubator for growing up our cyanobacteria is complete; we have cultures growing! [[IGEM:Harvard/2006/Cyanobacteria/Notebook/2006-7-5 | Link]]
*07/10/06: Some computer modeling has been done to see the effect of multiple unsyncronized clocks on phosphorylation state output. [[IGEM:Harvard/2006/Cyanobacteria/Notebook/2006-7-10 | Link]]
*07/21/06: Upon having trouble with site-specific mutagenesis on the KaiA and KaiBC operons from the cyanobacterial genome, we have decided to pursue synthesis of the constructs in parallel with continued extraction attempts. [[IGEM:Harvard/2006/Cyanobacteria/Notebook/2006-7-21 | Link]]
*08/01/06: Preliminary success with site-specific mutagenesis. [[IGEM:Harvard/2006/Cyanobacteria/Notebook/2006-8-1 | Link]]
*08/05/06: Promoter leakness tests come out negative. May have to use low-copy plasmids if we want good control of protein expression in Top10F. [[IGEM:Harvard/2006/Cyanobacteria/Notebook/2006-8-5 | Link]]
*08/11/06: We are moving to the synthetic KaiA, KaiB, and KaiC for future work. [[IGEM:Harvard/2006/Cyanobacteria/Notebook/2006-8-11 | Link]]
*08/30/06: We successfully made the first construct, Lac+RBS+KaiC. [[IGEM:Harvard/2006/Cyanobacteria/Notebook/2006-8-30 | Link]]
*09/01/06: Using the newly developed ligation protocol, we have successfully repeated Lac+RBS+KaiC from 08/30/06 and made Lac+RBS+KaiA. [[IGEM:Harvard/2006/Nicholas_Stroustrup%27s_Notebook#Results_Summary |
Link]]
*10/21/06: Successfully made Lac+RBS+KaiB and Lac+RBS+KaiA+Lac+RBS+KaiC. [[IGEM:Harvard/2006/Cyanobacteria/Notebook/2006-10-21 | Link]]
*10/24/06: Successfully made Lac+RBS+KaiB+Lac+RBS+KaiC. [[IGEM:Harvard/2006/Cyanobacteria/Notebook/2006-10-24 | Link]]
*10/25/06: Constructs for Stage I have been completed; ready to move to Stage I of Western Blotting, to verify expression of KaiC and interaction of KaiA and KaiB with KaiC. [[IGEM:Harvard/2006/Cyanobacteria/Notebook/2006-10-24 | Link]]
*'''10/27/06: Preliminary data indicates that the Kai proteins are being expressed in e. coli and that there is interaction between the three proteins! [[IGEM:Harvard/2006/Cyanobacteria/Notebook/2006-10-27 | Link]]'''


*Present before Fourth of July weekend (cancelled)
==Construct Planning==


For Wednesday 7/5
[[Image:construct_plans.png|thumb|left|330px|Constructs we plan to create.]]


*Research plasmids to ask Prof. Golden (moved from Thursday)
<br style="clear:both">
**Also, don't forget to ask her about CO2 and aerating our cultures
*Find out what equipment we would need for measuring bioluminescence


For Thursday 7/6
=== Lengths ===
From VF2 to VR (BioBrick primers):
* KaiA + J04500: 1406 bp
* KaiB + J04500: 859 bp
* KaiC + J04500: 2110 bp


*Make a model of the cyanobacteria
**We missed ice cream at Maxwell-Dworkin


For Friday 7/7


*Make a model of the cyanobacteria
==Agenda==
*We should be receiving the shipment of PCC 7942, otherwise we will call ATCC for the tracking information
''See image at right for our long-term project outline.''
**PCR PCC7942
[[Image:Cyanobacteria_Flowchart.png|thumb|Long-term project outline]]
**Plate PCC7942
**Grow PCC7942 in liquid culture, both with thiosulfate and without
*TGIF in Bauer Center


== Protocols ==
==BioBricks Used==
''Main article: [[IGEM:Harvard/2006/Protocols/Cyanobacteria]]
 
:*<bbpart>BBa_J04450</bbpart>
:**RFP device
:**Insert size: 1069bp
:**[[http://parts.mit.edu/registry/index.php/Part:pSB1A2 pSB1A2]]
:***High-copy, Amp<sup>R</sup>
:***Size: 2079bp
:*<bbpart>BBa_J04500</bbpart>
:**Lac promoter + RBS
:**Insert size: 220bp
:**[[http://parts.mit.edu/registry/index.php/Part:pSB1AK3 pSB1AK3]]
:***High-copy, Amp<sup>R</sup>, Kan<sup>R</sup>
:***Insert size: 3189bp
:*[[http://parts.mit.edu/registry/index.php/Part:pSB4A3 pSB4A3]]
:**Low-copy, Amp<sup>R</sup>
:**Insert size: 3339 bp
:*<bbpart>BBa_R0010</bbpart> + <bbpart>BBa_E0241</bbpart>
:**GFP device
:**Insert size: 995 bp


==Presentations==
==Presentations==
*[[IGEM:Harvard/2006/Presentation_cyano_week2 | Project proposal (week 2)]]
*[[IGEM:Harvard/2006/Presentation_cyano_week2 | Project proposal (week 2)]]
*[[Image:Cyan week3.ppt|Week 3 progress update]]
*[[Media:Cyan_week3.ppt |Week 3 progress update]]
**Built incubator and obtained WH8102, PCC7942, and PCC6803 strains
**Built incubator and obtained WH8102, PCC7942, and PCC6803 strains
*[[Media:Cyano_week4.ppt |Week 4 progress update]]
*[[Media:Cyanobacteria_Presentation_Week_5.ppt |Week 5 progress update, upd. 10:10 7/17]]
*[[Media:Cyanobacteria_Presentation_Week_6.ppt |Week 6 progress update, upd. 10:02 7/24 HH]]
*[[Media:Cyanobacteria_Presentation_Week_7.ppt |Week 7 progress update]]
*[[Media:Cyanobacteria_presentation_Week_8.ppt |Week 8 progress update]]
*[[Media:Cyanobacteria_presentation_Week_9.ppt |Week 9 progress update]]
*[[Media:Cyanobacteria_presentation_Week_10.ppt |Week 10 progress update, 50% complete]]
*''[[Media:Cyanobacteria_final_presentation.ppt |Final Presentation (incomplete)]]'' --old
*''[[Media:final_presentation_draft2.ppt |Final Presentation (complete)]]'' --old
*[[:Image:Cyano presentation.ppt | Jamboree presentation]] (in progress)
**[[:Image:Cyano_presentation_script.doc|Script]] (in progress)
*[[:Image:Cyano poster.ppt | Cyano poster]] (in progress)


==Working Team Members==
==Team Members==
*[[User:Hetmann|Hetmann Hsieh]] ([[User_talk:Hetmann|talk]])
*[[User:Hetmann|Hetmann Hsieh]] ([[User_talk:Hetmann|talk]], [[Special:Contributions/Hetmann|edits]])
*[[User:JeffreyLau|Jeffrey Lau]] ([[User_talk:JeffreyLau|talk]])
*[[User:JeffreyLau|Jeffrey Lau]] ([[User_talk:JeffreyLau|talk]], [[Special:Contributions/JeffreyLau|edits]])
*[[User:Zhipeng Sun|Zhipeng Sun]] ([[User_talk:Zhipeng_Sun|talk]])
*[[User:Zhipeng Sun|Zhipeng Sun]] ([[User_talk:Zhipeng_Sun|talk]], [[Special:Contributions/Zhipeng_Sun|edits]])
*[[User:DavidRamos|David Ramos]] ([[User_talk:DavidRamos|talk]])
*[[User:DavidRamos|David Ramos]] ([[User_talk:DavidRamos|talk]], [[Special:Contributions/DavidRamos|edits]])
 


==Notebook==
==Recent Changes==
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name=/Notebook
date=2006/07/01
view=threemonths
format=%name/%year-%month-%day
weekstart=14
</calendar>
For each page, newer entries are at the top.

Latest revision as of 04:28, 3 November 2006

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Introduction

Welcome to the lab notebook for the Cyanobacteria oscillator project! The goal of our team, composed of four members, is to reconstruct the cyanobacterial circadian oscillator system into E. coli. Three proteins, KaiA, B, and C, have been shown to have an in-vitro phosphorylation state oscillation (Nakajima et al. 2005) by transcriptional-translational independent methods. If this system can be reconstituted in E. coli, there are two important applications:

  1. Synthetic Biology: Creating a functional, oscillating set of proteins is the next logical step from the synthetic "repressilator" system engineered by Elowitz et al. (2000). Although a good proof of concept, the "repressilator" lacks the stability needed from a robust oscillator such as the naturally evolved cyanobacterial oscillator. This robust oscillator could prove useful in an eventual biocircuit.
  2. Circadian Biology: Cyanobacteria are the simplest model organisms for the study of circadian oscillation. Although circadian oscillation has been fairly well characterized, less is understood at the molecular level. By porting the oscillation system into E. coli, one can begin to understand more precisely the pathways involved in the genomic oscillation of cyanobacteria.

For more background information on the ciracadian system, please check out our "Literature" section. Otherwise, day-to-day work can be found under the "Lab Notebook" tab; we will post major results of our work and links to the days as they become available. If you have questions or comments, feel free to contact us: information is located at the main Harvard iGEM 2006 page. Thanks!


Sincerely,
Zhipeng, Hetmann, Dave, and Jeff


Update 10/27/06: We believe we can express the three proteins into e. coli, and that there is interaction between A+C and possible interaction between B+C. See the Lab Notebook for more information.

Outline of Findings and Signifigant Dates

  • 07/05/06: The incubator for growing up our cyanobacteria is complete; we have cultures growing! Link
  • 07/10/06: Some computer modeling has been done to see the effect of multiple unsyncronized clocks on phosphorylation state output. Link
  • 07/21/06: Upon having trouble with site-specific mutagenesis on the KaiA and KaiBC operons from the cyanobacterial genome, we have decided to pursue synthesis of the constructs in parallel with continued extraction attempts. Link
  • 08/01/06: Preliminary success with site-specific mutagenesis. Link
  • 08/05/06: Promoter leakness tests come out negative. May have to use low-copy plasmids if we want good control of protein expression in Top10F. Link
  • 08/11/06: We are moving to the synthetic KaiA, KaiB, and KaiC for future work. Link
  • 08/30/06: We successfully made the first construct, Lac+RBS+KaiC. Link
  • 09/01/06: Using the newly developed ligation protocol, we have successfully repeated Lac+RBS+KaiC from 08/30/06 and made Lac+RBS+KaiA. Link
  • 10/21/06: Successfully made Lac+RBS+KaiB and Lac+RBS+KaiA+Lac+RBS+KaiC. Link
  • 10/24/06: Successfully made Lac+RBS+KaiB+Lac+RBS+KaiC. Link
  • 10/25/06: Constructs for Stage I have been completed; ready to move to Stage I of Western Blotting, to verify expression of KaiC and interaction of KaiA and KaiB with KaiC. Link
  • 10/27/06: Preliminary data indicates that the Kai proteins are being expressed in e. coli and that there is interaction between the three proteins! Link

Construct Planning

Constructs we plan to create.


Lengths

From VF2 to VR (BioBrick primers):

  • KaiA + J04500: 1406 bp
  • KaiB + J04500: 859 bp
  • KaiC + J04500: 2110 bp


Agenda

See image at right for our long-term project outline.

Long-term project outline

BioBricks Used

  • <bbpart>BBa_J04450</bbpart>
    • RFP device
    • Insert size: 1069bp
    • [pSB1A2]
      • High-copy, AmpR
      • Size: 2079bp
  • <bbpart>BBa_J04500</bbpart>
    • Lac promoter + RBS
    • Insert size: 220bp
    • [pSB1AK3]
      • High-copy, AmpR, KanR
      • Insert size: 3189bp
  • [pSB4A3]
    • Low-copy, AmpR
    • Insert size: 3339 bp
  • <bbpart>BBa_R0010</bbpart> + <bbpart>BBa_E0241</bbpart>
    • GFP device
    • Insert size: 995 bp

Presentations

Team Members

Recent Changes

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