Difference between revisions of "Team:Lund"

(Undo revision 167756 by Adham (talk))
Line 1: Line 1:
−
{{Lund}}
+
<html>
 +
<script>
 +
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 +
$(document).ready(function() {
 +
$("#HQ_page").attr('id','');
  
 +
//highlight current page on the menu
 +
highlight_current_page_menu();
  
−
<html>
+
//accessing submenus
−
<header class="results-landing">
+
$(".menu_item").click(function(){
−
  <div class="container">
+
$(".submenu_control_icon", this).toggleClass("open");
−
    <h1 class="display">Home</h1>
+
$(this).next(".submenu").fadeToggle(400);
−
  </div>
+
});
−
</header>
+
  
 +
//mobile menu access
 +
$(".igem_2018_team_mobile_bar").click(function(){
 +
$(this).next().toggleClass("displaying_menu");
 +
});
  
−
<div class="container" >
+
});
−
<h1> Welcome to iGEM Lund 2018! </h1>
+
function highlight_current_page_menu() {
 +
var page_url="https://2018.igem.org/";
 +
page_url = page_url + wgPageName;
 +
$("a[href$='"+ page_url +"']").children().addClass("current_page");
  
−
<p>Microorganisms are used to produce many valuable products such as pharmaceuticals, food additives and enzymes. However, the production process can be expensive and achieving a high yield is sometimes difficult, with the oxygen supply being a common bottleneck. One approach in combating this problem is the co-expression of <i>Vitreoscilla</i> hemoglobin (VHb). The co-expression is often linked with increased cell densities and higher protein yields. However, few studies have to our knowledge investigated to what degree the protein should be expressed in order to provide beneficial effects. In addition, we have not found any standardized approach in implementing VHb into already existing systems. </p>
+
//if the page is in a submenu, open the submenu and make the appropiate changes
 +
if( $( ".current_page" ).hasClass( "submenu_item" )){
  
−
<font size="3">
+
$(".current_page").parent().parent().fadeToggle(400);
−
<i>Vitreoscilla</i> hemoglobin is a protein found in the aerobic bacterium <i>Vitreoscilla</i>. It has been proposed that its main role is to deliver oxygen to terminal respiratory oxidases and thereby increase respiration when the oxygen availability is low, and it may also function as a terminal oxidase itself<sup>1</sup>. Several studies have shown that expression of the gene coding for VHb, <i>vgb</i>, can improve cell growth<sup>2,3,4</sup>
+
$(".current_page").parent().parent().prev().addClass("current_page");
−
as well as increase the production of, among other things, enzymes<sup>5,6</sup>, antifungals<sup>7</sup> and ethanol<sup>8</sup>. </p>
+
$(".menu_item.current_page > .submenu_control_icon").toggleClass("open");
 +
}
 +
}
 +
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 +
</script>
  
−
We hypothesize that expressing only a small amount of <i>vgb</i> will lead to an insufficient oxygen utilization and consequently non-optimal cell productivity. On the other hand, overexpressing <i>vgb</i> will result in a depletion of cell resources as the relative amount of energy gained from the increased metabolism will be overtaken by the amount of protein expressed, The optimal conditions should therefore be approachable by an expression level which is somewhere in-between. </p>
 
  
−
To investigate the hypothesis, our aim is to co-express VHb under promoters of varying strength along with a target protein in <i>Escherichia coli</i>. This will be accomplished by using the library of Anderson promoters from the iGEM registry, which are characterized by their RNA polymerase binding strengths. Consequently, we want to measure various properties such as protein yields, cell densities and metabolite concentrations in order to study the effect of increased VHb expression. As such, we wish to first investigate the effect of increased VHb levels and then test our system in a real upscale setting. </p>
+
<!------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------->
 +
<!--- THIS IS WHERE THE HTML BEGINS --->
 +
<!------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------->
  
−
In our contribution to iGEM, our ambition is to provide a library of <i>vgb</i> expression systems with varying promoter strengths. With this available, the amount of increased oxygen uptake can be tailored specifically for the intended application. This gives a new degree of freedom in the experimental design when considering the use of oxygen carriers in synthetic biological systems. The parts could for example be used to increase protein yields under upscaling or increase cell survivability in low oxygen environments.</p>
+
<head>
−
</font>
+
  <!-- THIS IS A CDN - MAKE IT LOCAL!! -->
−
<hr>
+
  <link href="https://fonts.googleapis.com/css?family=Roboto:300,400,500|Varela+Round" rel="stylesheet">
−
<font size="1">
+
  <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" integrity="sha384-wvfXpqpZZVQGK6TAh5PVlGOfQNHSoD2xbE+QkPxCAFlNEevoEH3Sl0sibVcOQVnN" crossorigin="anonymous">
−
[1] Stark, B. C., Dikshit, K. L. and Pagilla, K. R. (2012). The Biochemistry of <i>Vitreoscilla</i> hemoglobin. <i>Computational and Structural Biotechnology Journal</i> 3, e201210002. http://doi.org/10.5936/csbj.201210002 <br>
+
  <!--  -->
−
[2] Khosla, C., and Bailey, J. (1988) Heterologous expression of a bacterial haemoglobin improves the growth properties of recombinant <i>Escherichia coli</i>. <i>Nature</i> 331, 633-635.<br>
+
 
−
[3] Wu, JM. and Fu, WC. (2012) Intracellular co-expression of <i>Vitreoscilla</i> hemoglobin enhances cell performance and β-galactosidase production in <i>Pichia pastoris. J Biosci Bioeng</i> 113(3), 332–337.<br>
+
 
 +
  <link rel="stylesheet" type="text/css" href="/Team:Lund/styles/wrapper?action=raw&ctype=text/css&cache=37">
 +
  <script type="text/javascript" src="/Team:Lund/scripts/bootstrap?action=raw&ctype=text/javascript"></script>
 +
  <script type="text/javascript" src="/Team:Lund/scripts/ScrollTrigger?action=raw&ctype=text/javascript"></script>
 +
  <script type="text/javascript" src="/Team:Lund/scripts/jquery-scrollTo?action=raw&ctype=text/javascript"></script>
 +
  <script type="text/javascript" src="/Team:Lund/scripts/featherlight?action=raw&ctype=text/javascript"></script>
 +
 
 +
  <script>
 +
    $(document).ready(function() {
 +
      var pages = {
 +
        'Team:Lund':                                    '#li_home',
 +
        'Team:Lund/Team':                              '#li_team',
 +
        'Team:Lund/Collaborations':                    '#li_team',
 +
        'Team:Lund/Attributions':                      '#li_team',
 +
        'Team:Lund/Description':                        '#li_team',
 +
        'Team:Lund/Design':        i                    '#li_team',
 +
        'Team:Lund/Description':                        '#li_team',
 +
        'Team:Lund/Attributions':                      '#li_team',
 +
        'Team:Lund/Attributions/LundUniversity':        '#li_team',
 +
        'Team:Lund/Attributions/Team':                  '#li_team',
 +
        'Team:Lund/Attributions/Sponsors':              '#li_team',
 +
        'Team:Lund/Attributions/Inspiration':          '#li_team',
 +
        'Team:Lund/Attributions/ProjectDesign':        '#li_team',
 +
        'Team:Lund/Description':                        '#li_project',
 +
        'Team:Lund/Design':                            '#li_project',
 +
        'Team:Lund/Design/Animation':                  '#li_project',
 +
        'Team:Lund/Design/Theory':                      '#li_project',
 +
        'Team:Lund/Design/Design':                      '#li_project',
 +
        'Team:Lund/Design/Circuit':                    '#li_project',
 +
        'Team:Lund/Design/Experiments':                '#li_project',
 +
        'Team:Lund/Design/References':                  '#li_project',
 +
        'Team:Lund/Results':                            '#li_project',
 +
        'Team:Lund/InterLab':                          '#li_project',
 +
        'Team:Lund/Parts':                              '#li_project',
 +
        'Team:Lund/Experiments':                        '#li_project',
 +
        'Team:Lund/Notebook':                          '#li_project',
 +
        'Team:Lund/Model':                              '#li_model',
 +
        'Team:Lund/Modeling/ModelDerivation':          '#li_model',
 +
        'Team:Lund/Modeling/ParameterEstimation':      '#li_model',
 +
        'Team:Lund/Modeling/Implementation':            '#li_model',
 +
        'Team:Lund/Safety':                            '#li_safety',
 +
        'Team:Lund/HP/Silver':                          '#li_hp',
 +
        'Team:Lund/HP/Gold_Integrated':                '#li_hp',
 +
        'Team:Lund/Engagement':                        '#li_hp',
 +
        'Team:Lund/HP/Media':                          '#li_hp',
 +
        'Team:Lund/Communication':                      '#li_hp',
 +
      };
 +
 
 +
      var listItem = $(pages[wgPageName]);
 +
      listItem.addClass('active');
 +
    });
 +
  </script>
 +
 +
<style type="text/css">
 +
  /***************************************************** DEFAULT WIKI SETTINGS  ****************************************************/
 +
 
 +
  /* Clear the default wiki settings */
 +
 
 +
  #home_logo, #sideMenu { display:none; }
 +
  #sideMenu, #top_title, .patrollink  {display:none;}
 +
  #content { width:100%; padding:0px;  margin-top:-7px; margin-left:0px;}
 +
  body {background-color:white; }
 +
  #bodyContent h1, #bodyContent h2, #bodyContent h3, #bodyContent h4, #bodyContent h5 { margin-bottom: 0px; }
 +
</style>
 +
 
 +
<!-- This tells the browser that your page is responsive -->
 +
<meta name="viewport" content="width=device-width, initial-scale=1">
 +
</head>
 +
 
 +
<!------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------->
 +
<!--- Menu --->
 +
<!------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------->
 +
 
 +
<nav id="navbar" class="navbar navbar-inverse navbar-static-top">
 +
  <div class="container">
 +
    <div class="navbar-header">
 +
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar-collapse" aria-expanded="false">
 +
        <span class="sr-only">Toggle navigation</span>
 +
        <span class="icon-bar"></span>
 +
        <span class="icon-bar"></span>
 +
        <span class="icon-bar"></span>
 +
      </button>
 +
      <a class="navbar-brand" href="/Team:Lund">
 +
        <img alt="iGEM Lund" src="https://static.igem.org/mediawiki/2018/3/3e/T--Lund--igem_lund_logo_animation_white.gif" style="height:400%">
 +
      </a>
 +
    </div>
  
−
[4] Pablos, T. E., Mora, E. M., Le Borgne, S., Ramírez, O. T., Gosset, G. and Lara, A. R. (2011), <i>Vitreoscilla</i> hemoglobin expression in engineered <i>Escherichia coli</i>: Improved performance in high cell‐density batch cultivations. <i>Biotechnology Journal</i>, 6: 993-1002. doi:10.1002/biot.201000405 <br>
+
    <div class="collapse navbar-collapse" id="navbar-collapse">
 +
      <ul class="nav navbar-nav navbar-right">
  
−
[5] Khosravi, M., Webster D. A. and Stark, B.C. (1990). Presence of the bacterial hemoglobin gene improves α-amylase production of a recombinant <i>Escherichia coli</i> strain. <i>Plasmid</i> 24(3), 190-194. <br>
+
        <li id="li_home"><a href="/Team:Lund">Home</a></li>
  
−
[6] Wu, JM., Wang, SY., Fu, WC. (2012). Lower Temperature Cultures Enlarge the Effects of <i>Vitreoscilla</i> Hemoglobin Expression on Recombinant <i>Pichia pastoris. Int. J. Mol. Sci.</i> 13(10), 13212-13226; doi:10.3390/ijms131013212 <br>
+
        <li id="li_team" class="dropdown">
 +
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Team <span class="caret"></span></a>
 +
          <ul class="dropdown-menu">
 +
            <li><a href="/Team:Lund/Team">Team</a></li>
 +
            <li><a href="/Team:Lund/Collaborations">Collaborations</a></li>
 +
            <li><a href="/Team:Lund/Attributions">Attributions</a></li>
 +
          </ul>
 +
        </li>
  
−
[7] Wang S, Liu F, Hou Z, Zong G, Zhu X, Ling P. Enhancement of natamycin production on <i>Streptomyces gilvosporeus</i> by chromosomal integration of the <i>Vitreoscilla</i> hemoglobin gene (<i>vgb</i>) <i>World J Microb Biot</i>. 2014;30:1369–1376. doi: 10.1007/s11274-013-1561-4 <br>
+
        <li id="li_project" class="dropdown">
 +
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Project <span class="caret"></span></a>
 +
          <ul class="dropdown-menu">
 +
            <li><a href="/Team:Lund/Description">Description</a></li>
 +
            <li><a href="/Team:Lund/Design">Design</a></li>
 +
            <li><a href="/Team:Lund/Results">Results</a></li>
 +
            <li><a href="/Team:Lund/InterLab">InterLab</a></li>
 +
            <li><a href="/Team:Lund/Parts">Parts</a></li>
 +
            <li><a href="/Team:Lund/Experiments">Protocols</a></li>
 +
            <li><a href="/Team:Lund/Notebook">Notebook</a></li>
 +
          </ul>
 +
        </li>
  
−
[8] Sanny, T., Arnaldos, M., Kunkel, S.A. et al (2010). Engineering of ethanolic <i>E. coli</i> with the <i>Vitreoscilla</i> hemoglobin gene enhances ethanol production from both glucose and xylose. <i>Appl Microbiol Biotechnol</i> 88, 1103-1112. https://doi.org/10.1007/s00253-010-2817-7
+
        <li id="li_model"><a href="/Team:Lund/Model">Model</a></li>
−
</p>
+
        <li id="li_safety"><a href="/Team:Lund/Safety">Safety</a></li>
−
</font>
+
        <li id="li_hp"><a href="/Team:Lund/HP/Silver">Practices</a></li>
  
−
<i> Contact: igemlund@gmail.com </i>
+
      </ul>
 +
    </div><!-- /.navbar-collapse -->
 +
  </div><!-- /.container-fluid -->
 +
</nav>
  
−
</div>
+
<!------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------->
 +
<!--- Content of the page  --->
 +
<!------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------->
  
 +
<!-- <div class="igem_2018_team_content">
 +
<div class="igem_2018_team_column_wrapper">
 +
<div class="clear extra_space"></div>
 +
<div class="clear extra_space"></div> -->
 
</html>
 
</html>

Revision as of 17:25, 25 September 2018