Checking for presence of A on the cell membrane
Piotr

1. Pouring bacteria by drops onto nitrocellulose
2. Drying
3. Blocking
4. Anti-A antibody binding
5. Washing
6. Anti-rabbit antibody binding
7. Developing with BCIP and NBT

Checking whether degradation of the fusions with OmpA is caused by Lon and OmpT proteases (present in TOP10)

Piotr

Test was conducted in E.coli Rosetta strain expressing omp_omega_A_alfa (with and without induction) and omp_A_alfa.

1. Spinnign
2. Suspending
3. Adding of lysis buffer
4. Boiling
5. Putting into poliacrylamide gel
6. Transfer onto nitrocellulose
7. Blocking
8. Anti-A antibody binding
9. Washing
10. Anti-rabbit antibody binding
11. Developing with BCIP and NBT

We didn't observe differences in espression and degradation in Rosettas nor in TOP10. Therefore we suppose that degradation of the fusions is caused by other factor than Lon and OmpT proteases.