Team:NYMU-Taipei/results/immunological-solution1

Contents 1 Constructs & Parts 1.1 (1) MinC Construct and Inv & LLO Constructs on AMB-1 1.2 (2) Related Parts 1.3 (3) Nested-PCR Primers for Various Strains 1.4 (4) Results of PCR from genomic DNA 1.5 (5) Expression of TetR Protein Enabled Regulation 2 Symbiosis within Human Glial Cells 2.1 (1) Magnetotactic bacteria were introduced into guanulocytes and monocytes by phagocytosis.(Tadashi Matsunaga et all. 1986) 2.2 (2) In our experiment, AMB-1 was introduced into primary mixed glial cells in vitro. Figures 1~4 show the photos captured under the microscope. 3 Measurements of Construct tetR+rbs+gfp under Fluorescence Microscope

Constructs & Parts

(1) MinC Construct and Inv & LLO Constructs on AMB-1

Fig. Design of minC construct on AMB-1 Backbone plasmid: pYMB	Fig. Design of Inv & LLO construct on AMB-1 Backbone plasmid: pRKm415

(2) Related Parts

We have created several parts on the basis of Biobrick. The expression will be shown on the partregistry webpage.

BBa_K624033	minC cell division inhibitor (revised)
BBa_K624034	revised minC primer (forward)
BBa_K624035	revised minC primer (reverse)
BBa_K624036	minC+mcherry
BBa_K624037	rbs+minC+mcherry
BBa_K624040	pT7-tetO+rbs+minC
BBa_K624045	Pmsp1(tetO) + rbs(Pmsp3) + minC + rbs(Pmsp3) + mcherry
BBa_K624056	pYMB essentials + rbs(Pmsp3) + minC
BBa_K624057	pYMB essentials + rbs(Pmsp3) + LLO
BBa_K624058	pYMB essentials + rbs(Pmsp3) + Inv

(3) Nested-PCR Primers for Various Strains

(i) nested-Inv

BBa_K624063	nested_Inv F (inter-strain nested primer)
BBa_K624064	nested_Inv R (inter-strain nested primer)

(ii) nested-LLO

BBa_K624065	nested_LLO F (inter-strain nested primer)
BBa_K624066	nested_LLO R (inter-strain nested primer)

(4) Results of PCR from genomic DNA

Fig. invasin PCR cloned from Yersinia enterocolitica	Fig. LLO PCR cloned from Listeria monocytogenes	Fig. minC PCR cloned from E.coli K12 MG1655

(5) Expression of TetR Protein Enabled Regulation

Fig. From the left to right, there are separately marker labelled at 72kDa and 26kDa, supernatant control, supernatant experiment, pellet control, pellet experiment.

Tetracyclin resistent protein and GFP were induced by IPTG to express in BL-21 E.coli strain for the confirmation of the construct.As SDS-PAGE shown above, there is no difference between supernatant control and experiment while tetracyclin resistent protein and GFP express in the pellet experiment.It is proved that the expression of tetracyclin resistent protein can enable the regulation.

Symbiosis within Human Glial Cells

(1) Magnetotactic bacteria were introduced into guanulocytes and monocytes by phagocytosis.(Tadashi Matsunaga et all. 1986)

Fig.The transmission electron micrograph(TEM) of a monocyte that had ingested magnetotactic bacteria. The bar represents 5 μm.

(2) In our experiment, AMB-1 was introduced into primary mixed glial cells in vitro. Figures 1~4 show the photos captured under the microscope.

Check out BBa_K624032 for detailed characterization

Fig.1 primary mixed glial cell introduced with AMB-1 1	Fig.2 primary mixed glial cell introduced with AMB-1 2
Fig.3 primary mixed glial cell control 1	Fig.4 primary mixed glial cell control 2

Measurements of Construct tetR+rbs+gfp under Fluorescence Microscope

These are the measurements of our construct tetR+rbs+GFP(BBa_K624001) under fluorescence microscope. The picture on the left is from the control group of E. coli strain DH5-alpha. The middle is tetR+rbs+gfp in plasmid pSB1C3 in E. coli, while the right is from a plate without any bacilli. All graphs are measured in fixed exposure time. Construct of tetR+rbs+gfp which emits light is thought to be a leak phenomenon of plasmid, while RE digest has proved that the sequence length is correct, and further sequencing work is under operation.

gfp measurements under different excitation wavelengths

The expression of gfp is measured precisely under excitation wavelength from 475nm to 501nm, given the absorption wavelength 511nm. In our measurement, wavelength over 493nm yields high background, resulting in values of control group surging far beyond normal condition. Thus, 493nm is suggested as the best excitation wavelength, as it presents the highest emission light and the lowest of the control group.