摘要:
The invention relates to the use of co-expression of an antimicrobial agent and an enzyme, with a view to improving yield and/or overall production economy. Examples of antimicrobial agents are antimicrobial peptides such as lactoferricins and antimicrobial enzymes such as lysozyme and glucose oxidase, and examples of enzymes are endoglucanase, xylanase, phytase, protease, galactanase, mannanase, dextranase, alpha-galactosidase, pectate lyase, alpha-amylase and glucoamylase. A fusion product comprising the antimicrobial agent and the enzyme and a cleavable linker is novel, and can be used in animal feed and animal feed additives. The invention also describes the use of a protection domain wherein at least 50% of the amino acid residues comprised in the peptide protection domain are D (Asp) and/or E (Glu). The protection or quenching domain serves to temporarily and reversibly inactivate the antimicrobial peptide during the expression.
摘要:
The present invention relates to a method for constructing a host cell expressing a polypeptide of interest from at least two ORF's stably integrated onto the chromosome of the host cell comprising the steps of: a) providing the at least two ORF's encoding the same polypeptide, wherein the at least two DNA sequences of the ORF's differ in at least one position; b) integrating the at least two ORF's in the same orientation on the host cell chromosome.
摘要:
The invention concerns a hydraulic steering arrangement with a steering motor, a supply path between a pressure source and the steering motor, in which supply path a throttling device and a measuring motor are located, a return path between the steering motor and a pressure sink, in which return path a return throttle is located, and a bypass path, which connects the supply path and the return path on the pressure source end or the pressure sink end, respectively, and which has a bypass throttle. It is endeavoured to make such steering arrangements suitable for fast motorboats. For this purpose it is ensured that with a load on the steering motor the pressure drop over the bypass throttle is larger than the sum of the pressure drops between a point before the first throttle and a point after the last throttle of the throttling device.
摘要:
The invention refers to a telescoping frame assembly (1) for height adjustment adjacent a wall (23) comprising: bracket structure for structure load mounting; self-blocking telescoping columns for height adjustment; movement of telescoping columns synchronized by mechanical means and/or common control of individual actuators; one telescoping column part being wall-mounted with possible supporting foot; with: a separate main beam (42) of constant circumscribed profile for horizontal arrangement and having means (52, 53) along its length for positioning and fixation of both vertical telescoping columns and horizontal brackets, with freely selectable positions along the main beam (42); telescoping columns (43) as separate units with specific positioning and fixation means (49, 54) for mounting to the main beam (42) at the selected positions; and brackets (44) as separate units provided with specific positioning and fixation means (47, 48, 49, 50) for mounting to the main beam (42) at the selected positions. The invention also refers to the use of such an assembly for, e.g., the mounting of basins and tubs.