Team:Hong Kong HKU/team/people

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Revision as of 04:32, 25 September 2013

Talk delivered to Sec School Students

June 28th, Friday Long Amp PCR + Cloning Cargo Team: (Only KO genome available) Native Ko_ppk Amplified > Gel Purified (49ng/ul) > TA vector Ligation+Transformation > Spread Plate 1st step Signal Ko_ppk Am Surface Team: plified > Gel Purified (weak) > 2nd PCR Native EutS Amplified > Gel Purified (25ug/ul) > TA vector Ligation+Transformation > Spread Plate His_EutS Amplified > Gel Purified > 2nd PCR Flag_EutS Amplified > Gel Purifed > 2nd PCR Ko native ppk and Ko sigppk 1st PCR product. June 29th, Saturday Long Amp PCR + Cloning, continuous PCR and TA vector transformation. June 30th, Sunday His Euts TA colonies for culture. Redo transformation of native EutS and Flag EutS. Continuous PCR of Tf_ppk1 and Ko_ppk1. July 1st, Monday Miniprep of HisEutS and Ko_ppk1 TA clone culture and Digestion test. Overnight ligation of Native Ko_ppk1, Native Tf_ppk1, pLacHisEutS, Sig_Koppk1(Weak), Flag_EutS July 2nd, Tuesday Mass Digestion of His_EutS. Continuous PCR and gel purification. Miniprep for EutS Topo conlonies. 4 Transfromation (Topo Clone) : Native Ko_ppk1, Native Tf_ppk1, pLacHisEutS, Sig_Koppk1(Weak), Flag_EutS July 3rd, Wednesday Continuous PCR of Ko_sigppk, His_EutSMNLK and Flag_EutSMNLK. Mass Digestion of native EutS. Transformation: His_Eut into K525998 (Cm Plate); TF_sigppk into Topo (Amp+Xgal Plate); Flag_EutS into Topo (1),(2) July 4th, Thursday MiniPrep and Digestion Test: Native Ko_ppk1, Native Tf_ppk1, Sig_Koppk1 Transformation: NativeEutS into 525 (1,2) Cm Plate; Native Tfppk, Koppk, sig_koppk Prepare DH10B Competent Cells. July 5th, Friday Miniprep and Digestion Test: HisEutS 525, FlagEutS topo, Tf_sigppk topo. 2nd Round PCR for His,Flag EutSMNLK July 6th, Saturday; July 7th, Sunday; July 8th, Monday A very Tough Weekend (6-8/7) PCR Native Ko, Native Tf, Sig Tf and Sig Ko was ligated in to Topo Vector. Many White Colonies were observed. (Also with a few Blue Colonies) Very HAPPY about the result and picked colonies for culture. Culture Two Times and Found out the growth rate was abnormally Slow and the Culture was not cloudy and contain fillament like clusters. Maybe the ppk gene might be toxic to cell?<< Wrong Maybe the shaker speed and temperature not correct? << Wrong WE have Fungus/other bacteria Comtamination!!! Hints: Colonies morphology>>very white and not transparent and moist compared to Ecoli colonies Culture grow well (withou filament clusture) in 32C. Can grow in Wrong Antibiotics. (Topo vector is Kana resistant, I use Cm to test>Still grow) Tried to miniprep on tube with less clusters. No Plasmid. Right Now We don't Know the source of contamination. Overview: What we have: We have EutS, His EutS, Flag EutS in Topo Vector. Positive Digestion Pattern. Send for sequencing on 9/7. To avoid comtaminantion. Will Redo Transformation to create a new stock. But Right now, we have: HisEutS 1,2 glycerol stock and streak plates. FlagEutS 1,2 glycerol stock and streak plates. (picked colonies from plates and tested postive, but cannot tell whether there is comtamination) EutS Retransformed plates and glycerol stock. Previous EutS, His_EutS, Flag_EutS in to 525 vector failed. Will try again. But we still don't have any ppk in vector!! But have succeed in PCR (But result random) Cannot Amplify EutSMNLK from K311004. Will send K311004 for sequencing. July 9th, Tuesday Miniprep and Digestion Test of Tf native ppk, Tf sigppk and Ko sigppk. Redo ligation and transformation of Ko native ppk, Ko sigppk and Tf sigppk. July 10th, Wednesday PCR of Ko native ppk, Tf sigppk, Ko sigppk Tranformation of 4 kind of ppk1. Mass Digestion of Tf native ppk plasmid 1,2 Overnight culture of Tf native ppk1. July 11th, Thursday Colony PCR. MiniPrep of three Tf native ppk Making competent cells. Ligation of Tf native DNA (XbaI/ PstI) with 525 vector. Transformation of Tf sigppk. July 12th, Friday 1st round PCR of KO sigppk1 Miniprep of 12 tubes; Digestion test July 13th, Saturday Digestion test. Picked EutS 4, HisEutS 1, FlagEutS 1, Tfppk 2 plasmid transformed into BL21 Colony PCR of sigppk. July 14th, Sunday Check plates (Ko native ppk and Ko sigppk 1st PCR product) → pick 34 colonies for colonies PCR → Run gel, two from ko native ppk showed 2100bp. → Culture these two colonies in 5ml LB overnight. Digestion of Tf sigppk plasmid (XbaI and PstI) and purify 2100bp tf sigpkk DNA → Overnight ligation with 525 vector. Ligation of Ko sigppk PCR product into topo vector → Trasformation July 15th, Monday Miniprep and Digestion Test: Ko native ppk. Transformation of Tf sigppk 525 vector (into Cm plate), Ko sigppk topo vector (into Kan plate) Pick two colonies from Tf sigppk stock plate and culture overnight. July 16th, Tuesday Check plates (Tf sigppk 525, Ko sigppk topo) and colonies PCR, culture 6 colonies. Digestion Ko native ppk overnight. July 17th, Wednesday Miniprep and digestion test of Topo Ko sig 1,2,3 and Tf sigppk 525 1,2,3. Digestion overnight (Ko sigppk 3, Tf sigppk1 and K525998 plasmids) Gel Purification of digestion product. July 18th, Thursday Run gel and purification of Digestion Product. Ligation of Ko native ppk and Tf sigppk to new 525 vector, transformation. Transformation of Ko native ppk/525 into DH10B, spread plate. Pick two colonies from Ko native ppk and one colony from Ko sigppk stock plates and culture overnight. July 19th, Friday Colonies PCR of Ko native ppk 525, Tf sigppk 525. MiniPrep of yesterday's culture. ( Ko native ppk topo and Ko sigppk topo) Pick 2 colonies from Euts native525, 2 from Flag Euts525, 2 from His Euts525, 1 from Tf native ppk525 and culture overnight. July 20th, Saturday Antibiotics Mistake, all culture failed. Redo culture again. July 21st, Sunday MiniPrep and digestion test of Ko native ppk 525, Tf sigppk525. Transformation of Ko native ppk 525 vector into Bl21 and spread plates. Culture Tf native ppk 525 BL21 overnight. Culture 4 tubes of K311004 DH10B overnight. July 22nd, Monday Check plates: No colonies. Thus redo transformation of Ko native ppk 525 vector into Bl21. Miniprep of K311004 DH10B, concentrate into one plasmid purification kit. Get a high conc. plasmid sample (110.4ng/ul) IPTF induction of Tf native ppk Bl21, culture overnight. July 23rd, Tuesday Run PAGE of induced Tf native ppk Bl21 cell lysate and control, coomassie blue staining. July 24th, Wednesday As yesterday's result was not ideal, redo PAGE and coomassie blue staining. July 25th, Thursday Check the coomassie blue staining result: A 500kDa band (referring to the sequencing result, it might be a premature stop codon. normal ppk: 78kDa) PCR and Purification: Ko native ppk(Template: Ko genomic DNA); Tf sigppk1 2nd PCR(template: WY's Tf sigppk1 1st PCR product); Ko sigppk 1st PCR (template: new making Ko native ppk) PCR test: plasmid Sigppk1 topo 1, Plasmid sigppk1 topo 2 Culture Ko sigppk topo 1,2,3 overnight. Culture Tf native ppk bl21 ovenight. July 26th, Friday IPTG inductionof Tf native ppk bl21(10, 20). Miniprep and Digestion test of Ko sigppk topo 1,2,3. Run gel of Ko sigppk 3 PCR product. Ligation of Tf sigppk and Ko native ppk into topo vector and transformation Culture Euts native, Flag, His Bl21 overnight. July 27th, Saturday Run PAGE of Tf native ppk bl21, coomassie blue staining. IPTG induction of Euts Native, Flag, His. Check plates. (White colonies, Contamination?) July 28th, Sunday Colony PCR of TF sigppk and Ko native ppk topo DH10B Run PAGE of Euts Native, Flag, His Bl21. Coomassie Blue staining. Transformation of Tf sigppk topo and spread plate. July 29th, Monday Check plate of Tf sigppk topo, colony PCR. Miniprep of Ko native ppk topo and Digestion test. IPTG induction of Tf native ppk. Transformation of Euts native, flag, his; Tf sigppk 1, 5 (all in 525 vector) into BL21 and spread plates. July 30th, Tuesday Run gel of digestion product, purification. Ligation into 525 vector. Run PAGE of Tf native ppk and coomassie blue staining. Miniprep of Tf sigppk topo. Culture Euts native, flag, his; Tf sigppk 1, 5 BL21 colonies overnight for IPTG induction. July 31st, Wednesday IPTG induction of Euts native, flag, his; Tf sigppk 1, 5 Digestion of Tf sigppk topo and digestion test. Ligation into 525 vector. Transformation of Ko native ppk 525 into DH10B and spread plates. August 1st, Thursday Run PAGE gel of Euts native, flag, his; Tf sigppk 1, 5 and Coomassie blue staining. Transformation of Tf sigppk 525 into DH10B and spread plate. Colony PCR of Ko native ppk 525 DH10B 1st Round PCR of Tf sigppk. August 2nd, Friday Miniprep and digestion test. Colony PCR. August 3rd, Saturday Miniprep of Tf sigppk, Ko native ppk in DH10B ,tf native ppk 5, native EutS, Flag EutS, His EutS in BL21. Digestion test. Try IPTG induction again using a new condition. Transformation of Tf sigppk 2,5, 7 in BL21. August 4th, Sunday PAGE of EutS native, Flag EutS and HisEutS. August 5th, Monday August 6th, Tuesday August 7th, Wednesday August 8th, Thursday August 9th, Friday August 10th, Saturday PCR ppk for commercial vector(adding tag for purification) PCR sig-RFP for detecting localization Transformation of KO525 (4, 19) into bl21 Transformation of ligation product (RFP into 525) 1st PCR of Sig Ko August 11th, Sunday Colony PCR of RFP-525 plates, culture positive colonies Gel Purify 1st PCR SigKo, 2nd PCR Transform Ko525(4), Ko525(19) into DH5a for DNA storage Overnight Culture BL21: KO525(4)(19),TFsig(2),TF(6)(7)(8) Transform Ko Topo 1, Ko Topo 2, Ko Topo 3, Tf Topo A, Tf topo B into BL21 and spread plates and grow overnight. Second PCR sig-RFP, Purified and digest using S+P overnight Digest 525948 Vector using S+P overnight Ligatation of sig 2nd PCR product and TOPO August 12th, Monday Miniprep RFP525 (2,4,5,6)>>Digestion test>>Transform (4) into BL21 Gel purify 2nd SigKo, SigRFP >> Ligate into T-vector>> Transform DH5a Transform Pet28a (kana R) into DH5a to get vector Transform K311004,HisSMNLK,FlagSMNLK into BL21 Streak HisSMNLK (1a),FlagSMNLK(4b) DH5a to get DNA Culture NativeEutS, HisS, FlagS 525 to get DNA IPTG induce all BL21 (Try 0.5mM iptg, 16C) Bacteria culture of Ko Topo 1,2,3, and Tf Topo A,B Ligation of SpeI and PstI cut K525998 and sig RFP Colony PCR of Ko 1 (11,12), Ko 3(6,7,8,9,10),Tf(1,2,3,4,5) August 13th, Tuesday Prepare Cm plates Run gel of colony PCR products from 12-Aug Miniprep of bacteria culture TfB (3,4,5) and KO (2,4,5), digestion test of miniprep products with NdeI and NotI Transformation of Sig RFP Topo and 525 into DH10B and Spread Plate Harvest All Induced BL21, Run SDS-PAGE August 14th, Wednesday Bacteria culture of RFP Topo and RFP 525. Redo transformation of RFP Topo into DH10B. August 15th, Thursday Miniprep of bacteria culture from 14/8. August 16th, Friday Send out 4 plasmids for DNA sequencing. Digestion of Ko topo 2,4 Tf and Pet(Commercial vector). August 17th, Saturday August 18th, Sunday August 19th, Monday August 20th, Tuesday August 21st, Wednesday Bacteria culture of Tf pET28a(t). Double digestion test of Ko pET28a(t). August 22nd, Thursday Miniprep of Tf pET28a(t) and digestion test. August 23rd, Friday Run gel of digestion product from 22/8. Spead plates of KO pET28a(t) 2, 4. August 24th, Saturday August 25th, Sunday August 26th, Monday Run gel of Digestion Product and purification. August 27th, Tuesday Preparing BL21 competent cells. Bacteria culture. August 28th, Wednesday Miniprep and digestion test. August 29th, Thursday Bacteria culture. Ligation and transformation into DH10B. August 30th, Friday Miniprep and Digestion Test. August 31st, Saturday Bacteria culture. September 1st, Sunday Miniprep and digestion test. Transformation. September 2nd, Monday September 3rd, Tuesday September 4th, Wednesday September 5th, Thursday September 6th, Friday Miniprep Kop ET 28a(t) DH10B and digestion product. Digestion and purification of pET28a(t) vector. Transformation. Bacteria culture. September 7th, Saturday September 8th, Sunday Miniprep and Digestion test. September 9th, Monday His-tagged protein purification. September 10th, Tuesday September 11th, Wednesday His-tagged protein purification. PAGE of the purified protein, coomassie blue staining. September 12th, Thursday September 13th, Friday September 14th, Saturday September 15th, Sunday September 16th, Monday September 17th, Tuesday September 18th, Wednesday September 19th, Thursday September 20th, Friday Polyphosphate Assay Phosphate Assay SigRFP localization of Eut MCP

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-<font face="Arial" size="2">Human practice in the iGEM competition is about introducing synthetic biology to people through various ways.  This year, the HKU iGEM team wanted to arouse people’s interest towards this new field of science by organizing some talks for both high school students and undergraduates.  We also made an animated video about our project which is broadcasted on YouTube for public viewing.  Through these activities, we presented the basic information about iGEM and synthetic biology to the youth and the public.</font>
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-On Aug 10th, we gave a talk to 85 secondary school students from 12 schools who were the participants of a science video competition.  The presentation consisted of an introduction about iGEM, synthetic biology and our project E. capsi.  Since some of the audiences were from junior form, we used many cartoons and analogical examples to illustrate the basic concept such as BioBricks and synthetic biology.  Most students showed their interests in this project and some of them asked questions after the presentation.  We believe that giving presentation about iGEM to high school students, we, University students can inspire them to think deeply about how synthetic biology can change our lives.
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