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index 77af2ff998c3f5729edb37ed417caa453dd5dcb4..2a522014920d3e5d4a2610b7d5f233591ad697cb 100644
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@@ -78,6 +78,15 @@
       <p class="engineering-content">
       <b>Design:</b> This part consists of a pH-inducible promoter, secretory signal peptide, laccase enzyme-coding sequence, a Tandem GS linker, and a reporter gene. The pH-inducible promoter, Asr (which stands for acid shock RNA), gets activated in the pH range of 3.5-5.5. With the help of the secretory signal peptide, the laccase enzyme is secreted extracellularly. In order to confirm the secretion of the laccase enzyme at the laboratory level, we added the reporter gene (CFP) in fusion with the laccase gene using a 13 Tandem GS linker.
     </p>
+    <p class="engineering-content">
+      <b>Build:</b> The gene circuit design has been constructed using SnapGene.
+    </p>
+    <p class="engineering-content">
+      <b>Test:</b>ABTS assay is a common method to characterize the activity of the enzyme laccase. In this assay, ABTS, which is a colorless substrate, is oxidized by laccase, leading to the formation of a yellow-green product that can be measured at 420 nm. The absorbance value of the product correlates to the activity of laccase. Laccase was added to ABTS, and at regular time intervals, the absorbance was measured, and thereby the activity of Laccase was characterized.</p>
+    <p class="engineering-content">
+      <b>Learn:</b> We initially faced issues with the design of the gene circuit, like the distance between RBS and the gene of interest, so that gene expression occurs properly. We had discussions with our alumni, experts, and figured out the issue, and modified the circuit.
+    
+    </p>
     </div>
     <div class="engineering-point">
       <h2 class="engineering-head">BEST EDUCATION AND COMMUNICATION</h2>
@@ -90,6 +99,9 @@
       <p class="engineering-content">
         The new basic part we submitted to the registry is a nitroreductase enzyme, which catalyzes the conversion of nitro to amino groups. A specific NO<sub>2</sub> group in an aromatic compound is reduced to NH<sub>2</sub> by a 2-electron transfer mechanism. This is type-1 nitroreductase, which is oxygen-insensitive. This can reduce nitro compounds in the presence of oxygen. This can be used for the environmental degradation of nitroaromatic compounds. This part has been characterized and uploaded to the Parts Registry for future iGEM teams to use. Take a look at our New Basic Part:<a href="https://parts.igem.org/wiki/index.php?title=Part:BBa_K4864000" target="_blank">BBa_K4864000</a>
       </p>
+      <p class="engineering-content">
+        The new basic part we submitted to the registry is a nitroreductase enzyme, which catalyzes the conversion of nitro to amino groups. A specific NO<sub>2</sub> group in an aromatic compound is reduced to NH<sub>2</sub> by a 2-electron transfer mechanism. This is type-1 nitroreductase, which is oxygen-insensitive. This can reduce nitro compounds in the presence of oxygen. This can be used for the environmental degradation of nitroaromatic compounds. This part has been characterized and uploaded to the Parts Registry for future iGEM teams to use. Take a look at our New Basic Part:<a href="https://parts.igem.org/wiki/index.php?title=Part:BBa_K4864000" target="_blank">BBa_K4864000</a>
+      </p>
     </div>
   </section>
 </div>