Difference between revisions of "Part:BBa K320007"

Latest revision as of 12:38, 27 October 2010

Constitutive expression of P25

This BioBricks allows the expression of the protein P25.

The ookinete (Plasmodium stage in mosquito's gut) has been intensively studied by scientists, looking for an ideal transmission-blocking vaccine target. IGEM EPFL team's was interested in the ookinete surface membrane proteins Pfs25 and Pfs28 (link to other biobrick). It has been shown that the binding of specific antibodies to these surface proteins was fatal to more than 99% of the ookinetes. Indeed, P25 and P28 seem to be essential for the ookinete to be able to cross the midgut epithelium and thereafter transform into an oocyst.

Our team decided to design Asaia to express a soluble form of these 2 P-proteins. It could seem contra-intuitive to provide more of these proteins (by expression in Asaia), which are very important for the parasite survival, migration, and development. But our hypothesis is that adding a lot of these proteins in a soluble form will compete with the parasite surface protein and prevent the interaction necessary to its transmission. Because the functions of P25 and P28 are redundant, both proteins need to be inhibited or outcompeted to efficiently block the malaria transmission. More information can be found on our [http://2010.igem.org/wiki/index.php?title=Team:EPF_Lausanne/Project/Background website].

Sequence and Features

Assembly Compatibility:

10
COMPATIBLE WITH RFC[10]
12
INCOMPATIBLE WITH RFC[12]
Illegal NheI site found at 62
21
COMPATIBLE WITH RFC[21]
23
COMPATIBLE WITH RFC[23]
25
COMPATIBLE WITH RFC[25]
1000
COMPATIBLE WITH RFC[1000]

@@ Line 2: / Line 2: @@
 <partinfo>BBa_K320007 short</partinfo>
-This BioBricks permit the expression of the protein P25.
+This BioBricks allows the expression of the protein P25.
-The ookinete (plasmodium state in mosquito's gut) has been intensively studied by scientists, looking for an ideal transmission-blocking vaccine target. IGEM EPFL team's interest goes toward the ookinete surface membrane proteins Pfs25 and Pfs28. In fact, it has been shown that the binding of specific antibodies to these surface proteins was fatal to more than 99% of the parasites [http://www.nature.com/emboj/journal/v20/n15/full/7593895a.html reference]. Indeed, P25 and P28 seem to be essential to the ookinete survival, the crossing of the midgut epithelium and its transformation into an oocyst.
+The ookinete (Plasmodium stage in mosquito's gut) has been intensively studied by scientists, looking for an ideal transmission-blocking vaccine target. IGEM EPFL team's was interested in the ookinete surface membrane proteins Pfs25 and Pfs28 (link to other biobrick). It has been shown that the binding of specific antibodies to these surface proteins was fatal to more than 99% of the ookinetes. Indeed, P25 and P28 seem to be essential for the ookinete to be able to cross the midgut epithelium and thereafter transform into an oocyst.
+Our team decided to design Asaia to express a soluble form of these 2 P-proteins. It could seem contra-intuitive to provide more of these proteins (by expression in Asaia), which are very important for the parasite survival, migration, and development. But our hypothesis is that adding a lot of these proteins in a soluble form will compete with the parasite surface protein and prevent the interaction necessary to its transmission. Because the functions of P25 and P28 are redundant, both proteins need to be inhibited or outcompeted to efficiently block the malaria transmission. More information can be found on our [http://2010.igem.org/wiki/index.php?title=Team:EPF_Lausanne/Project/Background website].
-The team decided to design Asaia to express a soluble form of these 2 P-proteins. It could seems contra-intuitive to provide more of these proteins (by expression in Asaia) that are very important for the parasite survival, migration, and development. But our hypothesis is that adding a lot of these proteins in a soluble form will compete with the parasite surface protein and prevent the interaction necessary to its transmission. Because the functions of P25 and P28 are redundant, both proteins need to be inhibited or outcompeted to efficiently block the malaria transmission.
 <!-- Add more about the biology of this part here