Update wiki/pages/engineering.html

wiki/pages/engineering.html

@@ -53,13 +53,13 @@ an optional C-terminal His•Tag sequence.</p>
 
 <p>The protein was finally expressed through the pET expression system. </p>
 
-<div class='simg'><img src='https://static.igem.wiki/teams/4305/wiki/eng-f5.png'><br/>[Figure 5]  Principle of regulating gene expression using the pET-expression system.</div>
+<div class='simg'><img src='https://static.igem.wiki/teams/4305/wiki/eng-f5.png'><br/>[Figure 5]:  Principle of regulating gene expression using the pET-expression system.</div>
 
-<div class='simg'><img src='https://static.igem.wiki/teams/4305/wiki/eng-f6.png'><br/>[Figure 6> : The TFAM protein expression test was performed using four selected colonies with or without IPTG induction. </div> 
+<div class='simg'><img src='https://static.igem.wiki/teams/4305/wiki/eng-f6.png'><br/>[Figure 6]: The TFAM protein expression test was performed using four selected colonies with or without IPTG induction. </div> 
 
 <p>The expected TFAM protein size was 28 kDa, and the strong bands showed in colony # 2 and # 4 only in the IPTG-added sample. IPTG induces the inserted gene expression in pET28 containing E.coli (DE3) strain. </p>
 
-<div class='simg'><img src='https://static.igem.wiki/teams/4305/wiki/eng-f7.png'><br/>[Figure 7] : Protein purification using Ni-NTA magnetic silica resins.</div>
+<div class='simg'><img src='https://static.igem.wiki/teams/4305/wiki/eng-f7.png'><br/>[Figure 7]: Protein purification using Ni-NTA magnetic silica resins.</div>
 
 <p>The expression vectors contain an IPTG inducible promoter. The gene encoding a protein when cloned to an expression vector can be expressed by the induction using IPTG. The E. coli BL21 cells containing recombinant expression plasmid are grown to mid-exponential phase and then IPTG is added to the growing cells to induce the protein expression. The cell samples before and after the IPTG induction can then be analyzed for protein expression by SDS-PAGE analysis. </p>