Test |
Host train |
MCB |
WCB |
Identity and purity | |||
Viability |
+ |
+ |
+ |
Bacterial strain characteristic |
+ |
+ |
- |
Genotyping/phenotyping |
+ |
+ |
- |
Plasmid presence: | |||
• plasmid DNA seąuencing |
- |
+ |
- |
• copynumber |
- |
+ |
+ |
• restriction map |
- |
+ |
+ |
• the percentage of cells maintaining the plasmid |
- |
+ |
+ |
Adventitious agents | |||
Purity by plating |
+ |
+ |
+ |
Presence of bacteriophages |
+ |
+ |
- |
“+” - means the necessity of performing the test for the bank - means the test is not reąuired for the bank
The tests reąuired on each stage of manufacturing in reference to host strain, master celi bank (MCB) and working celi bank (WCB) (acc. to Polish Pharmacopea, XI-th ed. (2017) [19]).