Revision as of 15:54, 30 October 2017

T7 Promoter+RBS+B-1E

Figure 1. P_T7+RBS+B-1E+terminator

Introduction

      It has been known as an antibacterial peptide that has activity against representative Gram-negative and Gram-positive bacterial species. Its grade given by scoring card ,which was created by NCTU_Formosa, shows it may also have an anti-fungal function.

Experiment

1. Fungal Test

(1) Inhibition Zone

      We put some mycelium on a Potato dextrose agar plate, PDA plate, and cultivated it at the point of 20℃ for culturing Botrytis cinerea, the fungi we used, for 2 days. Ensuring the mycelial colony has developed, we put the sterile blank paper which the different concentrations of B-1E and HEPES, as a negative control, were added respectively. The place where peptide been but will appear a hole after 12 ~ 18 hours if the peptide will affect the growth of mycelium. The result shows that the place we put B-1E will have a hole. It means the peptide will affect the growth of mycelium.

Figure 2. The result shows that B-1E will affect the growth of mycelium.

(2) Spore Germination

(3) Botany Experiment

2. Cloning

      We put T7 promoter, RBS, and B-1E together with pSB1C3 as a backbone. Then we conducted Taq PCR to check the size of the DNA sequence was right. The length of T7 promoter+RBS+Sa-AFP2 is around 100 ~ 200 b.p.. Its PCR product is around 250 ~ 500 b.p..

Sequence and Features