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− | + | background: url(https://static.igem.org/mediawiki/2018/2/20/T--Jilin_China--Common--Icons--InterLab.svg) no-repeat left; | |
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<p>INTERLAB</p> | <p>INTERLAB</p> | ||
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<div class="title_nav"><h2>Interlab</h2></div> | <div class="title_nav"><h2>Interlab</h2></div> | ||
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<!--<section class="s0"></section>--> | <!--<section class="s0"></section>--> | ||
<ul class="sidenav"> | <ul class="sidenav"> | ||
− | <li><a href="# | + | <li><a href="#paragraph_1">Device We Received</a></li> |
− | <li><a href="# | + | <li><a href="#paragraph_2">Protocol</a></li> |
+ | <li><a href="#paragraph_3">Raw Data</a></li> | ||
+ | <li><a href="#paragraph_4">Analysis</a></li> | ||
+ | <li><a href="#paragraph_5">Conclusion</a></li> | ||
</ul> | </ul> | ||
<section class="s2"> | <section class="s2"> | ||
<ul> | <ul> | ||
− | <li class="" id=" | + | <li class="paragraph_0 full-width" id="paragraph_0"> |
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
<div> | <div> | ||
<h2>Introduction</h2> | <h2>Introduction</h2> | ||
− | <p>Reliable and repeatable measurement remains one of the tough challenges in synthetic biology. In order to overcome this problem, the Measurement Committee, through the InterLab study, has been developing a measurement procedure for green fluorescent protein (GFP) for the last four years. The CFU count is a new feature of interlab study this year. The goal of the 2018 Interlab study is to determine how reliably known parts can conform to expectations and previous results and to calibrate | + | <p>Reliable and repeatable measurement remains one of the tough challenges in synthetic biology. In order to overcome this problem, the Measurement Committee, through the InterLab study, has been developing a measurement procedure for green fluorescent protein (GFP) for the last four years. The CFU count is a new feature of interlab study this year. The goal of the 2018 Interlab study is to determine how reliably known parts can conform to expectations and previous results and to calibrate OD600 to colony forming unit (CFU) counts, which are directly relatable to the cell concentration of the culture, i.e. viable cell counts per mL. The CFU protocol assumes that 1 bacterial cell will give rise to 1 colony.</p> |
− | <p>For a more detailed description visit the homepage of the iGEM's measurement committee.</p> | + | <p>For a more detailed description, please visit <a href="https://2018.igem.org/Measurement/InterLab">the homepage of the iGEM's measurement committee.</a></p> |
</div> | </div> | ||
</li> | </li> | ||
− | <li class="" id=""> | + | <li class="paragraph_1 start" id="paragraph_1"> |
<div> | <div> | ||
<h2>Device We Received</h2> | <h2>Device We Received</h2> | ||
− | <table | + | <table> |
<tbody> | <tbody> | ||
<tr> | <tr> | ||
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</div> | </div> | ||
</li> | </li> | ||
− | <li class="" id=""> | + | <li class="paragraph_2" id="paragraph_2"> |
<div> | <div> | ||
<h2>Protocol</h2> | <h2>Protocol</h2> | ||
− | <p>We strictly followed the protocol provided by iGEM. We measured the experiment of OD600 reference point and fitted the fluorescence standard curve first and then detected GFP expression in | + | <p>We strictly followed the protocol provided by iGEM. We measured the experiment of OD600 reference point and fitted the fluorescence standard curve first and then detected GFP expression in <i>E.coli</i> with the plate reader Synergy HT from BioTek. |
− | <p>This is the transformation protocol.</p> | + | <p><a href="http://parts.igem.org/Help:Protocols/Transformation">This is the transformation protocol</a>.</p> |
− | <p>This is the interlab plate reader protocol.</p> | + | <p><a href="https://2018.igem.org/Measurement/InterLab/Plate_Reader">This is the interlab plate reader protocol</a>.</p> |
</div> | </div> | ||
</li> | </li> | ||
− | <li class="" id=""> | + | <li class="paragraph_3" id="paragraph_3"> |
<div> | <div> | ||
<h2>Raw Data</h2> | <h2>Raw Data</h2> | ||
− | < | + | <h5 class="tables">Table 1. The data of the OD600 reference point experiment</h5> |
− | <table | + | <table> |
<tbody> | <tbody> | ||
<tr> | <tr> | ||
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</tbody> | </tbody> | ||
</table> | </table> | ||
− | < | + | <h5 class="tables">Table 2. Particle standard curve experiment</h5> |
− | + | <div class="burst"> | |
+ | <table> | ||
<tbody> | <tbody> | ||
<tr> | <tr> | ||
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</tbody> | </tbody> | ||
</table> | </table> | ||
− | < | + | </div> |
− | + | <h5 class="tables">Table 3. The data of the Fluorescein standard curve experiment</h5> | |
+ | <div class="burst"> | ||
+ | <table> | ||
<tbody> | <tbody> | ||
<tr> | <tr> | ||
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</tbody> | </tbody> | ||
</table> | </table> | ||
− | < | + | </div> |
− | <table | + | <h5 class="tables">Table 4. The data of the plate reader measurement experiment</h5> |
+ | <table> | ||
<tbody> | <tbody> | ||
<tr> | <tr> | ||
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</tbody> | </tbody> | ||
</table> | </table> | ||
− | <table | + | <table> |
<tbody> | <tbody> | ||
<tr> | <tr> | ||
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</table> | </table> | ||
</div> | </div> | ||
+ | <h5 class="tables">Table 5. The data of CFU experiment</h5> | ||
+ | <table> | ||
+ | <tbody> | ||
+ | <tr> | ||
+ | <td> </td> | ||
+ | <td>Pos. Control 1-1</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>Pos. Control 1-2</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>Pos. Control 1-3</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Starting Sample's OD</td> | ||
+ | <td>0.096</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>0.064</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>0.11</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Dilution order</td> | ||
+ | <td>Dilution 3</td> | ||
+ | <td>Dilution 4</td> | ||
+ | <td>Dilution 5</td> | ||
+ | <td>Dilution 3</td> | ||
+ | <td>Dilution 4</td> | ||
+ | <td>Dilution 5</td> | ||
+ | <td>Dilution 3</td> | ||
+ | <td>Dilution 4</td> | ||
+ | <td>Dilution 5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Colony Count</td> | ||
+ | <td>273.0</td> | ||
+ | <td>24.0</td> | ||
+ | <td>4.0</td> | ||
+ | <td>130.0</td> | ||
+ | <td>9.0</td> | ||
+ | <td>2.0</td> | ||
+ | <td>161.0</td> | ||
+ | <td>21.0</td> | ||
+ | <td>1.0</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>CFU*10^8/ml</td> | ||
+ | <td>0.218</td> | ||
+ | <td>0.192</td> | ||
+ | <td>0.32</td> | ||
+ | <td>0.104</td> | ||
+ | <td>0.072</td> | ||
+ | <td>0.16</td> | ||
+ | <td>0.129</td> | ||
+ | <td>0.168</td> | ||
+ | <td>0.08</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td> </td> | ||
+ | <td>Pos. Control 2-1</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>Pos. Control 2-2</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>Pos. Control 2-3</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Starting Sample's OD</td> | ||
+ | <td>0.096</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>0.106</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>0.099</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Dilution order</td> | ||
+ | <td>Dilution 3</td> | ||
+ | <td>Dilution 4</td> | ||
+ | <td>Dilution 5</td> | ||
+ | <td>Dilution 3</td> | ||
+ | <td>Dilution 4</td> | ||
+ | <td>Dilution 5</td> | ||
+ | <td>Dilution 3</td> | ||
+ | <td>Dilution 4</td> | ||
+ | <td>Dilution 5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Colony Count</td> | ||
+ | <td>174.0</td> | ||
+ | <td>15.0</td> | ||
+ | <td>4.0</td> | ||
+ | <td>150.0</td> | ||
+ | <td>21.0</td> | ||
+ | <td>1.0</td> | ||
+ | <td>133.0</td> | ||
+ | <td>22.0</td> | ||
+ | <td>5.0</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>CFU*10^8/ml</td> | ||
+ | <td>0.139</td> | ||
+ | <td>0.12</td> | ||
+ | <td>0.32</td> | ||
+ | <td>0.12</td> | ||
+ | <td>0.168</td> | ||
+ | <td>0.08</td> | ||
+ | <td>0.106</td> | ||
+ | <td>0.176</td> | ||
+ | <td>0.4</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td> </td> | ||
+ | <td>Neg. Control 1-1</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>Neg. Control 1-2</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>Neg. Control 1-3</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Starting Sample's OD</td> | ||
+ | <td>0.089</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>0.121</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>0.103</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Dilution order</td> | ||
+ | <td>Dilution 3</td> | ||
+ | <td>Dilution 4</td> | ||
+ | <td>Dilution 5</td> | ||
+ | <td>Dilution 3</td> | ||
+ | <td>Dilution 4</td> | ||
+ | <td>Dilution 5</td> | ||
+ | <td>Dilution 3</td> | ||
+ | <td>Dilution 4</td> | ||
+ | <td>Dilution 5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Colony Count</td> | ||
+ | <td>102.0</td> | ||
+ | <td>7.0</td> | ||
+ | <td>2.0</td> | ||
+ | <td>151.0</td> | ||
+ | <td>28.0</td> | ||
+ | <td>1.0</td> | ||
+ | <td>241.0</td> | ||
+ | <td>46.0</td> | ||
+ | <td>2.0</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>CFU*10^8/ml</td> | ||
+ | <td>0.082</td> | ||
+ | <td>0.056</td> | ||
+ | <td>0.16</td> | ||
+ | <td>0.121</td> | ||
+ | <td>0.224</td> | ||
+ | <td>0.08</td> | ||
+ | <td>0.193</td> | ||
+ | <td>0.368</td> | ||
+ | <td>0.16</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td> </td> | ||
+ | <td>Neg. Control 2-1</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>Neg. Control 2-2</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>Neg. Control 2-3</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Starting Sample's OD</td> | ||
+ | <td>0.11</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>0.103</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | <td>0.106</td> | ||
+ | <td> </td> | ||
+ | <td> </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Dilution order</td> | ||
+ | <td>Dilution 3</td> | ||
+ | <td>Dilution 4</td> | ||
+ | <td>Dilution 5</td> | ||
+ | <td>Dilution 3</td> | ||
+ | <td>Dilution 4</td> | ||
+ | <td>Dilution 5</td> | ||
+ | <td>Dilution 3</td> | ||
+ | <td>Dilution 4</td> | ||
+ | <td>Dilution 5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Colony Count</td> | ||
+ | <td>403.0</td> | ||
+ | <td>68.0</td> | ||
+ | <td>5.0</td> | ||
+ | <td>169.0</td> | ||
+ | <td>24.0</td> | ||
+ | <td>4.0</td> | ||
+ | <td>130.0</td> | ||
+ | <td>18.0</td> | ||
+ | <td>3.0</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>CFU*10^8/ml</td> | ||
+ | <td>0.322</td> | ||
+ | <td>0.544</td> | ||
+ | <td>0.4</td> | ||
+ | <td>0.135</td> | ||
+ | <td>0.192</td> | ||
+ | <td>0.32</td> | ||
+ | <td>0.104</td> | ||
+ | <td>0.144</td> | ||
+ | <td>0.24</td> | ||
+ | </tr> | ||
+ | </tbody> | ||
+ | |||
+ | </table> | ||
</li> | </li> | ||
− | <li class="" id=""> | + | <li class="paragraph_4" id="paragraph_4"> |
<div> | <div> | ||
<h2>Analysis</h2> | <h2>Analysis</h2> | ||
− | < | + | <h5 class="tables">1. Abs600</h5> |
+ | <div align="center"> | ||
+ | <img src="https://static.igem.org/mediawiki/2018/0/0b/T--Jilin_China--interlab--_abs.png" width="60%" /> | ||
+ | </div> | ||
+ | <h5 class="tables">2. Fluorescence</h5> | ||
+ | <div align="center"> | ||
+ | <img src="https://static.igem.org/mediawiki/2018/d/d1/T--Jilin_China--interlab--fluo.png" width="60%" /> | ||
+ | </div> | ||
+ | <h5 class="tables">3. Comparison between different promoters and RBS</h5> | ||
+ | <div align="center"> | ||
+ | <img src="https://static.igem.org/mediawiki/2018/f/f2/T--Jilin_China--interlab--normal.png" width="70%" /> | ||
+ | </div> | ||
+ | <h5 class="tables">4. CFU per OD600</h5> | ||
+ | <div align="center"> | ||
+ | <img src="https://static.igem.org/mediawiki/2018/c/c6/T--Jilin_China--interlab--pcnc.png" width="70%" /> | ||
+ | </div> | ||
</div> | </div> | ||
</li> | </li> | ||
− | <li class="" id=""> | + | <li class="paragraph_5" id="paragraph_5"> |
<div> | <div> | ||
<h2>Conclusion</h2> | <h2>Conclusion</h2> | ||
− | <p> | + | <p>As the results show, each of test devices grows well, and can express reporter protein GFP normally (Figure 1, 2). Compared with different promoters (BBa_J23101, BBa_J23106 and BBa_J23117) and RBSs (BBa_B0034 and BBa_J364100). As for the promoters comparison, the strength of BBa_J23101 is the highest, and BBa_J23117 is the lowest. As for the RBSs comparison, the activity of BBa_J364100 is stronger than BBa_B0034. The activity of Device 4 is the highest, and Device 3 is the lowest.</p> |
+ | <p>As the results show, each of test devices grows well, and can express reporter protein GFP normally (Figure 1, 2). Compared with different promoters (BBa_J23101, BBa_J23106 and BBa_J23117) and RBSs (BBa_B0034 and BBa_J364100). As for the promoters comparison, the strength of BBa_J23101 is the highest, and BBa_J23117 is the lowest. As for the RBSs comparison, the activity of BBa_J364100 is stronger than BBa_B0034. The activity of Device 4 is the highest, and Device 3 is the lowest.</p> | ||
+ | <p>Besides, as for the CFU counts experiment, the colony counts increase with the elevated concentration of bacterium. However, theoretically speaking, the value of CFU/mL of each device should be equivalent, our result show that it is affected by error. </p> | ||
+ | <p>We are looking forward to the results from the iGEM labs all over the world!</p> | ||
</div> | </div> | ||
</li> | </li> |
Latest revision as of 21:42, 17 October 2018
INTERLAB
Interlab
-
Introduction
Reliable and repeatable measurement remains one of the tough challenges in synthetic biology. In order to overcome this problem, the Measurement Committee, through the InterLab study, has been developing a measurement procedure for green fluorescent protein (GFP) for the last four years. The CFU count is a new feature of interlab study this year. The goal of the 2018 Interlab study is to determine how reliably known parts can conform to expectations and previous results and to calibrate OD600 to colony forming unit (CFU) counts, which are directly relatable to the cell concentration of the culture, i.e. viable cell counts per mL. The CFU protocol assumes that 1 bacterial cell will give rise to 1 colony.
For a more detailed description, please visit the homepage of the iGEM's measurement committee.
-
Device We Received
Negative Control BBa_R0040 Positive Control BBa_I20270 Test Device 1 BBa_J364000 Test Device 2 BBa_J364001 Test Device 3 BBa_J364002 Test Device 4 BBa_J364003 Test Device 5 BBa_J364004 Test Device 6 BBa_J364005 -
Protocol
We strictly followed the protocol provided by iGEM. We measured the experiment of OD600 reference point and fitted the fluorescence standard curve first and then detected GFP expression in E.coli with the plate reader Synergy HT from BioTek.
-
Raw Data
Table 1. The data of the OD600 reference point experiment
LUDOX CL-X H2O Replicate 1 0.057 0.038 Replicate 2 0.057 0.039 Replicate 3 0.057 0.039 Replicate 4 0.057 0.041 Arith. Mean 0.057 0.039 Corrected Abs600 0.018 Reference OD600 0.063 OD600/Abs600 3.549 Table 2. Particle standard curve experiment
Number of Particles 235294117.647 117647058.824 58823529.412 29411764.706 14705882.353 7352941.176 3676470.588 1838235.294 919117.647 459558.824 229779.412 0.0 Replicate 1 0.703 0.369 0.199 0.141 0.1 0.066 0.051 0.044 0.043 0.041 0.041 0.039 Replicate 2 0.644 0.375 0.219 0.12 0.084 0.064 0.053 0.044 0.041 0.038 0.04 0.039 Replicate 3 0.638 0.359 0.209 0.122 0.08 0.059 0.048 0.044 0.042 0.041 0.043 0.04 Replicate 4 0.651 0.365 0.204 0.123 0.08 0.058 0.047 0.044 0.042 0.042 0.04 0.039 Arith. Mean 0.659 0.367 0.208 0.127 0.086 0.062 0.05 0.044 0.042 0.041 0.041 0.039 Arith. Std.Dev. 0.03 0.007 0.009 0.01 0.01 0.004 0.003 0.0 0.001 0.002 0.001 0.001 Arith. Net Mean 0.62 0.328 0.168 0.087 0.047 0.022 0.011 0.005 0.003 0.001 0.002 Particles / OD Number of Particles 235294117.647 117647058.824 58823529.412 29411764.706 14705882.353 7352941.176 3676470.588 1838235.294 919117.647 459558.824 229779.412 Mean particles / Abs600 379659729.967 358953650.11 349101064.758 337097589.752 314564328.405 326797385.621 350140056.022 386996904.025 334224598.93 367647058.824 131302521.008 Mean of med-high levels: 337302803.729 Table 3. The data of the Fluorescein standard curve experiment
Fluorescein uM 10.0 5.0 2.5 1.25 0.625 0.312 0.156 0.078 0.039 0.02 0.01 0.0 Replicate 1 77669.0 38692.0 20601.0 10396.0 5058.0 1898.0 1532.0 760.0 382.0 192.0 100.0 10.0 Replicate 2 80872.0 37847.0 20419.0 10215.0 5014.0 2484.0 1212.0 618.0 329.0 155.0 81.0 11.0 Replicate 3 80348.0 39774.0 19819.0 10018.0 4892.0 2221.0 1059.0 522.0 256.0 127.0 65.0 11.0 Replicate 4 78408.0 39810.0 19893.0 10190.0 4987.0 2525.0 1201.0 608.0 309.0 159.0 97.0 12.0 Arith. Mean 79324.25 39030.75 20183.0 10204.75 4987.75 2282.0 1251.0 627.0 319.0 158.25 85.75 11.0 Arith. Std.Dev. 1530.028 944.399 386.012 154.677 70.22 289.269 199.872 98.583 52.083 26.625 16.153 0.816 Arith. Net Mean 79313.25 39019.75 20172.0 10193.75 4976.75 2271.0 1240.0 616.0 308.0 147.25 74.75 Fluorescein/a.u. Fluorescein uM 10.0 5.0 2.5 1.25 0.625 0.312 0.156 0.078 0.039 0.02 0.01 uM Fluorescein/a.u. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Mean uM fluorescein / a.u.: 0.0 MEFL / a.u.: 768289204.589 Table 4. The data of the plate reader measurement experiment
Fluorescence Raw Readings: Hour 0: Neg. Control Pos. Control Device 1 Device 2 Device 3 Device 4 Device 5 Device 6 LB + Chlor (blank) Colony 1, Replicate 1 148.0 293.0 262.0 323.0 149.0 621.0 315.0 199.0 148.0 Colony 1, Replicate 2 149.0 293.0 261.0 318.0 146.0 615.0 307.0 195.0 146.0 Colony 1, Replicate 3 150.0 283.0 258.0 315.0 150.0 611.0 305.0 224.0 145.0 Colony 1, Replicate 4 152.0 290.0 254.0 316.0 149.0 619.0 335.0 223.0 140.0 Colony 2, Replicate 1 153.0 296.0 271.0 298.0 154.0 594.0 310.0 206.0 153.0 Colony 2, Replicate 2 155.0 293.0 259.0 310.0 151.0 580.0 301.0 199.0 147.0 Colony 2, Replicate 3 155.0 290.0 258.0 315.0 148.0 589.0 298.0 208.0 146.0 Colony 2, Replicate 4 154.0 290.0 258.0 310.0 154.0 615.0 313.0 202.0 145.0 Hour 6: Neg. Control Pos. Control Device 1 Device 2 Device 3 Device 4 Device 5 Device 6 LB + Chlor (blank) Colony 1, Replicate 1 174.0 1097.0 766.0 1409.0 192.0 3976.0 794.0 591.0 143.0 Colony 1, Replicate 2 187.0 1161.0 801.0 1486.0 204.0 4135.0 835.0 619.0 144.0 Colony 1, Replicate 3 188.0 1170.0 799.0 1548.0 206.0 4242.0 830.0 624.0 149.0 Colony 1, Replicate 4 195.0 1196.0 850.0 1504.0 201.0 4279.0 836.0 624.0 143.0 Colony 2, Replicate 1 179.0 1115.0 1732.0 2000.0 190.0 4127.0 793.0 603.0 147.0 Colony 2, Replicate 2 187.0 1152.0 1675.0 2071.0 207.0 4478.0 821.0 616.0 149.0 Colony 2, Replicate 3 190.0 1105.0 1734.0 2090.0 203.0 4370.0 823.0 617.0 151.0 Colony 2, Replicate 4 185.0 1157.0 1705.0 2105.0 204.0 4386.0 838.0 624.0 143.0 Abs600 Raw Readings: Hour 0: Neg. Control Pos. Control Device 1 Device 2 Device 3 Device 4 Device 5 Device 6 LB + Chlor (blank) Colony 1, Replicate 1 0.072 0.068 0.059 0.071 0.067 0.06 0.056 0.063 0.045 Colony 1, Replicate 2 0.07 0.069 0.055 0.07 0.067 0.062 0.059 0.067 0.044 Colony 1, Replicate 3 0.071 0.068 0.057 0.07 0.066 0.059 0.056 0.074 0.047 Colony 1, Replicate 4 0.071 0.071 0.057 0.07 0.068 0.06 0.059 0.075 0.048 Colony 2, Replicate 1 0.069 0.068 0.057 0.066 0.067 0.062 0.056 0.065 0.047 Colony 2, Replicate 2 0.07 0.069 0.057 0.067 0.066 0.061 0.056 0.063 0.05 Colony 2, Replicate 3 0.072 0.068 0.055 0.065 0.064 0.061 0.057 0.065 0.043 Colony 2, Replicate 4 0.071 0.071 0.058 0.068 0.064 0.065 0.057 0.063 0.045 Hour 6: Neg. Control Pos. Control Device 1 Device 2 Device 3 Device 4 Device 5 Device 6 LB + Chlor (blank) Colony 1, Replicate 1 0.329 0.288 0.126 0.291 0.301 0.251 0.239 0.267 0.045 Colony 1, Replicate 2 0.332 0.293 0.125 0.298 0.313 0.254 0.25 0.28 0.044 Colony 1, Replicate 3 0.331 0.292 0.125 0.302 0.31 0.256 0.244 0.276 0.047 Colony 1, Replicate 4 0.339 0.296 0.13 0.3 0.309 0.257 0.246 0.278 0.047 Colony 2, Replicate 1 0.308 0.294 0.184 0.313 0.294 0.25 0.248 0.264 0.046 Colony 2, Replicate 2 0.32 0.298 0.186 0.321 0.305 0.266 0.259 0.267 0.045 Colony 2, Replicate 3 0.321 0.289 0.182 0.318 0.299 0.259 0.258 0.268 0.043 Colony 2, Replicate 4 0.314 0.301 0.186 0.323 0.304 0.262 0.26 0.27 0.045 Table 5. The data of CFU experiment
Pos. Control 1-1 Pos. Control 1-2 Pos. Control 1-3 Starting Sample's OD 0.096 0.064 0.11 Dilution order Dilution 3 Dilution 4 Dilution 5 Dilution 3 Dilution 4 Dilution 5 Dilution 3 Dilution 4 Dilution 5 Colony Count 273.0 24.0 4.0 130.0 9.0 2.0 161.0 21.0 1.0 CFU*10^8/ml 0.218 0.192 0.32 0.104 0.072 0.16 0.129 0.168 0.08 Pos. Control 2-1 Pos. Control 2-2 Pos. Control 2-3 Starting Sample's OD 0.096 0.106 0.099 Dilution order Dilution 3 Dilution 4 Dilution 5 Dilution 3 Dilution 4 Dilution 5 Dilution 3 Dilution 4 Dilution 5 Colony Count 174.0 15.0 4.0 150.0 21.0 1.0 133.0 22.0 5.0 CFU*10^8/ml 0.139 0.12 0.32 0.12 0.168 0.08 0.106 0.176 0.4 Neg. Control 1-1 Neg. Control 1-2 Neg. Control 1-3 Starting Sample's OD 0.089 0.121 0.103 Dilution order Dilution 3 Dilution 4 Dilution 5 Dilution 3 Dilution 4 Dilution 5 Dilution 3 Dilution 4 Dilution 5 Colony Count 102.0 7.0 2.0 151.0 28.0 1.0 241.0 46.0 2.0 CFU*10^8/ml 0.082 0.056 0.16 0.121 0.224 0.08 0.193 0.368 0.16 Neg. Control 2-1 Neg. Control 2-2 Neg. Control 2-3 Starting Sample's OD 0.11 0.103 0.106 Dilution order Dilution 3 Dilution 4 Dilution 5 Dilution 3 Dilution 4 Dilution 5 Dilution 3 Dilution 4 Dilution 5 Colony Count 403.0 68.0 5.0 169.0 24.0 4.0 130.0 18.0 3.0 CFU*10^8/ml 0.322 0.544 0.4 0.135 0.192 0.32 0.104 0.144 0.24 -
Analysis
1. Abs600
2. Fluorescence
3. Comparison between different promoters and RBS
4. CFU per OD600
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Conclusion
As the results show, each of test devices grows well, and can express reporter protein GFP normally (Figure 1, 2). Compared with different promoters (BBa_J23101, BBa_J23106 and BBa_J23117) and RBSs (BBa_B0034 and BBa_J364100). As for the promoters comparison, the strength of BBa_J23101 is the highest, and BBa_J23117 is the lowest. As for the RBSs comparison, the activity of BBa_J364100 is stronger than BBa_B0034. The activity of Device 4 is the highest, and Device 3 is the lowest.
As the results show, each of test devices grows well, and can express reporter protein GFP normally (Figure 1, 2). Compared with different promoters (BBa_J23101, BBa_J23106 and BBa_J23117) and RBSs (BBa_B0034 and BBa_J364100). As for the promoters comparison, the strength of BBa_J23101 is the highest, and BBa_J23117 is the lowest. As for the RBSs comparison, the activity of BBa_J364100 is stronger than BBa_B0034. The activity of Device 4 is the highest, and Device 3 is the lowest.
Besides, as for the CFU counts experiment, the colony counts increase with the elevated concentration of bacterium. However, theoretically speaking, the value of CFU/mL of each device should be equivalent, our result show that it is affected by error.
We are looking forward to the results from the iGEM labs all over the world!