Chiba/Communication

From 2007.igem.org

(Difference between revisions)
(Experiments)
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===Sender===
===Sender===
*ptet-luxI( (use BBa_...)
*ptet-luxI( (use BBa_...)
 +
==Experiments==
==Experiments==
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*調べるwhether does it change or not when the AHL precursur, methionine, is added. Right we show the AHL synthesis pathway.
*調べるwhether does it change or not when the AHL precursur, methionine, is added. Right we show the AHL synthesis pathway.
====Procedure====
====Procedure====
 +
[[Image:Chiba_senderassay.jpg]]
====Result====
====Result====
 +
[[Image:AHL_test_photo.jpg]]

Revision as of 06:55, 26 October 2007

Chiba logo.png

Introduction | Project Design | Bacteria Linker | Communication | Size Controller | Making Marimos | Our Goal || Team Members | メンバ連絡簿


Communication: Our Aim

Fig1.

違う遺伝子回路を持つ2つの細胞(sender&receiver)に分ける.あらかじめお互い結合しているSenderが,周りのreceiverにシグナルを与えてstickey handsを生やす.そして合体.このシグナルにはQuorum sensingを利用する.

About Quorum Sensing

Fig2.

クオラムセンシングとは,バクテリアが細胞間で行う(細胞密度に依存する)シグナル伝達のシステムである(<この辺wikipediaから引用する).自然界ではバクテリア(限定したほうが良い?)は常にAHLを合成している.AHLの濃度がある値以上になる,すなわち細胞密度がある値を超えるとAHL依存性プロモータ(LuxP)のスイッチがオンになり,遺伝子が発現される. 詳しい遺伝子回路は図に示す通り.

Our Construct

Recievers

  • ver1.
    • ptet-luxr-plux-gfp-aiia
  • ver2.
    • ptet-luxr-plux-gfp-inv-aiia

Sender

  • ptet-luxI( (use BBa_...)


Experiments

Sender Assay

Purpose

  • 調べるthe absolute number of senders required to activate pLux.
  • 調べる the difference in synthesis ability among Strains.
  • 調べるwhether does it change or not when the AHL precursur, methionine, is added. Right we show the AHL synthesis pathway.

Procedure

Chiba senderassay.jpg

Result

AHL test photo.jpg