Abstract: The invention provides a chaperone/usher family polymer comprising at least one chaperone/usher family polypeptide monomer, wherein said at least one chaperone/usher family polypeptide monomer comprises an exogenous bioactive sequence.

Abstract: The invention provides a chaperone/usher family polymer comprising at least one chaperone/usher family polypeptide monomer, wherein said at least one chaperone/usher family polypeptide monomer comprises an exogenous bioactive sequence.

Abstract: The present invention relates to fusion proteins (fusion polypeptides), particularly for use in expression and/or purification systems. The present inventors have found that the TolAIII domain has remarkable properties which are of particular use as a fusion protein partner to achieve high levels of expression in a host cell. In one aspect of the invention, a TolAIII domain or a functional homologue, fragment, or derivative thereof is located towards the N-terminus of the fusion polypeptide and a non-TolA polypeptide is located towards the C-terminus of the fusion polypeptide.

Abstract: A method and system of implementing a multicast protocol in a data network capable of basic internet protocol data traffic which provides a medium for data transfer. By illustration the data network comprises a server system and a plurality of clients connected to the server by way of a common network. This method and system manages the assignment of multicast addresses for each client and places each client into specific multicast groups based upon their multicast addresses. This method and system is then able to transfer multicast packets to individual clients based upon their multicast addresses.