Izabela Sabała and Alicja Wysocka participated in The Great Wall Symposium. The conference took place at The Institut Pasteur in Paris. They had the opportunity to discuss many aspects of peptidoglycan metabolism with academia and industry researchers. Alicja presented her best research at the poster – “Role of net charge in the activity of bacterial cell wall peptidases”. Even more outstanding results were shown by Izabela at the poster “Structural and functional studies of M23 peptidase from Enterococcus faecalis”. It was an excellent opportunity to exchange experiences and build network for the future collaboration.