Abstract: On a carrier surface, a layer of S-layer proteins is produced as a carrier of functional molecules. A solution containing S-layer proteins in the form of monomers or oligomers is brought into contact with the carrier surface. Electrochemical conditions are produced in the solution such that the S-layer proteins (SU) have an electrical net charge by establishing an electrochemical potential difference between the solution and the carrier surface such that the S-layer proteins accumulate on the carrier surface. A two-dimensional crystalline structure is formed in the layer, and this can occur at a time separate from the deposition of the S-layer proteins, and under different electrochemical conditions.

Abstract: A compound body can be constructed, using secondary cell wall polymers of prokaryotic microorganisms as bonding agent to anchor a monomolecular lattice to a support, with or without functional groups attached to the lattice. The lattice may be comprised of lipid or crystalline cell surface layer proteins. The support is illustrated by a micro-filtration membrane, a cell surface ultra-filtration membrane (SUM), and a micelle, respectively.

Abstract: The invention concerns a process for the recombinant production of S-layer proteins in gram-negative host cells. Furthermore the nucleotide sequence of a new S-layer gene and processes for the production of modified S-layer proteins are disclosed.

Abstract: The invention concerns a process for the recombinant production of S-layer proteins in gram-negative host cells. Furthermore the nucleotide sequence of a new S-layer gene and processes for the production of modified S-layer proteins are disclosed.

Abstract: On a carrier surface (CP), a layer of cell surface layer proteins (S-layer proteins) (SU, SM, SL) is produced as a carrier of functional molecules by virtue of a solution containing S-layer proteins in the form of monomers (SU) or oligomers (SM) being brought into contact with the carrier surface. To deposit the S-layer proteins, electrochemical conditions are set in the solution at which the S-layer proteins (SU) have an electrical net charge, and by setting the electrical potential of the carrier surface (CP) an electrochemical potential difference is produced between the solution and the carrier surface under whose effect the S-layer proteins from the solution accumulate on the carrier surface. In the layer formed in this way, a two-dimensional crystalline structure (SL) is then configured, wherein this can occur at a time separate from the deposition of the S-layer proteins and under different electrochemical conditions of the solution and/or the substrate.

Abstract: Use of secondary cell wall polymer for the directed monomolecular bonding of molecules, preferably molecular layers and/or attachment of molecules to molecules of a support, as well as a compound body completed according to this application.

Abstract: The invention concerns a process for the recombinant production of S-layer proteins in gram-negative host cells. Furthermore the nucleotide sequence of a new S-layer gene and processes for the production of modified S-layer proteins are disclosed.

Abstract: Use of novel membrane crystal lattice structures with continuous pores as ultrafiltration membranes, gas separating organs and separating organs for ion exchange processes, structure for immobilizing molecules, and films as enveloping material for substances.

Abstract: A method for producing a structure comprising at least one membrane with continuous pores having a diameter range of 1 to 8 nm extending along plane, curved, cylindrical or vesicular surfaces consisting essentially of at least one layer of contiguous identical protein containing molecules which molecules are arranged to form a crystal lattice defining continous pores free of said molecules, the membranes being connected to or embedded in a support layer or the membranes being connected together to form a stable unsupported film comprising removing the cell contents from intact cells of microorganisms or breaking the intact cells and separating the membranes or membrane containing cell envelope fragments, suspending the membranes or membrane containing cell envelope fragments in a liquid medium, combining the membranes or membrane containing cell envelope fragments into a layer with a crystal lattice with continuous pores free of the protein containing molecules by depositing the membranes or membrane containi

Abstract: Use of novel membrane crystal lattice structures with continuous pores as ultrafiltration membranes, gas separating organs and separating organs for ion exchange processes structure for immobilizing molecules, and films as enveloping material for substances.

Abstract: A structure usable as an ultrafiltration membrane has membranes (20) with continuous pores which are linked to or into an appropriately porous carrier (21). Each of these membranes (20) consist of protein molecules or protein containing molecules arranged according to a two-dimensional crystal lattice, between which continuous pores of equal size and form remain free, and they are advantageously formed from molecules, which were particularly separated from cell-membranes of procaryons, by means of a recrystallization process designated as self-organization, and which are preferably deposited on or into the carrier (21) and are cross-linked with the carrier (21) intra- or intermolecularly, respectively, through foreign molecules.The structure is suitable, furthermore, for use as a separating organ for a gas separation or for an ion exchange process, as well as for use as a carrier structure for other semi-permeable membranes, such as hyperfiltration membranes.