Difference between revisions of "Part:BBa K1864000"
 
(4 intermediate revisions by the same user not shown)
Line 31: Line 31:
 
<h3>We expected this part to express homologous double-stranded RNA of RdRp.  And the result of infectious experiment indicated that this part works as expected.</h3>
 
<h3>We expected this part to express homologous double-stranded RNA of RdRp.  And the result of infectious experiment indicated that this part works as expected.</h3>
 
<br>
 
<br>
−
[[File:File:FAFU-CHINA Parts information (1).png |200px|thumb|left|Figure.1 The effect of dsRdRp on the  number of sealed brood. After feeding with dsRdRp , the groups of medium concentration and high concentration are performing better.]]
+
[[File:FAFU-CHINA Parts information (1).png |200px|thumb|left|Figure.1 The effect of dsRdRp on the  number of sealed brood. After feeding with dsRdRp , the groups of medium concentration and high concentration are performing better.]]
−
[[File:File:FAFU-CHINA Parts information (2).png |200px|thumb|left|Figure.2 The effect of dsRdRp on the population of a colony. The group of high concentration has the most adult bees in a colony, after feeding bees on dsRdRp in three weeks.]]
+
 
−
[[File:File:FAFU-CHINA Parts information (3).png |200px|thumb|left|Figure.3 Detection the virus-infected rate of offsprings of by RT-PCR. The infection rate is sharply decreased after  feeding A.c.creana.]]
+
[[File:FAFU-CHINA Parts information (3).png |200px|thumb|left|Figure.2 Detection the virus-infected rate of offsprings of by RT-PCR. The infection rate is sharply decreased after  feeding A.c.creana.]]

Latest revision as of 23:04, 26 September 2015

CSBV-RdRP

Our part is the gene of CSBV's RNA dependent RNA polymerase(RdRp). We transferred the gene of RdRp into plasmid L4440 ,and transformed the recombinant plasmid into E.coli strain HT115 to express double stranded RNA of RdRp.

Sequence and Features


Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    INCOMPATIBLE WITH RFC[12]
    Illegal NheI site found at 837
  • 21
    INCOMPATIBLE WITH RFC[21]
    Illegal XhoI site found at 110
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    COMPATIBLE WITH RFC[25]
  • 1000
    COMPATIBLE WITH RFC[1000]


Application: To produce double stranded RNA of RNA dependent RNA polymerase which is able to initiate the process of RNA-interference

Group: FAFU-CHINA

Author: Ruicheng Dai & Changlong Lu


Summary: We used this part to produce dsRNA of RdRp, which is essential in our project to silence the RdRp gene of Sacbrood virus（CSBV）, preventing it from producing a protein.

Design

In our project,we have been aiming to control Chinese Sacbrood virus through silence of CSBV’s RdRp (RNA-dependent RNA polymerase) gene by using RNA-interference technology. We built recombinant L4440 plasmid containing dual T7 promoter and the gene of RNA Dependent RNA polymerase, and we transformed it to HT115 strain. After the enlarge cultivation of HT115, we added the engineered bacteria to the forage of honeybees. To test the effect of dsRdRp, we then did a infectious experiment by feeding infected hives with dsRdRp, and collected data to study the pupation rate of infected hives under different concentrations.



We expected this part to express homologous double-stranded RNA of RdRp. And the result of infectious experiment indicated that this part works as expected.


Figure.1 The effect of dsRdRp on the number of sealed brood. After feeding with dsRdRp , the groups of medium concentration and high concentration are performing better.
Figure.2 Detection the virus-infected rate of offsprings of by RT-PCR. The infection rate is sharply decreased after feeding A.c.creana.