Abstract:
The invention relates to a method of making a polypeptide comprising an orthogonal functional group, said orthogonal functional group being comprised by an aliphatic amino acid or amino acid derivative, said method comprising providing a host cell; providing a nucleic acid encoding the polypeptide of interest; providing a tRNA-tRNA synthetase pair orthogonal to said host cell; adding an amino acid or amino acid derivative comprising the orthogonal functional group of interest, wherein said amino acid or amino acid derivative is a substrate for said orthogonal tRNA synthetase, wherein said amino acid or amino acid derivative has an aliphatic carbon backbone; and incubating to allow incorporation of said amino acid or amino acid derivative into the polypeptide of interest via the orthogonal tRNA-tRNA synthetase pair. The invention also relates to certain amino acids, and to polypeptides comprising same.
Abstract:
A method for exterminating existing infestations of ants, termites, insects or other living organisms in structures, soils and other materials using a capsicum-containtg killing solution in either a liquid or vapor form, including the steps of delivering the killing solution to the infested portions of the structure, and contacting the termites, insects or other living organisms forming the infestation. The method obviates the need for toxic or environmentally unsafe chemical compounds, and capsicum is readily available and economical. More importantly, the novel pesticide and method of use of the present invention is highly effective against termites in dry areas, wet areas, inaccessible and exposed areas, including around and under foundations, in ceiling and in wall portions of structures. Boring small holes into the structure, from either the inside or the outside and penetrating into the interior wall, ceiling and foundation spaces will allow the capsicum based killing solution to be pumped directly therein. Additionally, the killing solution can be applied underneath vapor barriers into the soil to eliminate nematodes in soil prior to other agricultural activities.
Abstract:
A support carrier of electrically conductive material is secured to the shaft of the machine. A plurality of slip rings are secured to the support carrier, one of the slip rings being fixed thereto directly so that the support carrier will form one terminal of the electrical connection for the slip rings, and an insulating layer is placed over the support carrier over which the other slip ring is located. Preferably, the support carrier is formed with a flange which is notched, one of the notches serving to form an electrical connection for the wire of the field of the machine for connection to the slip ring which is directly secured to the support carrier, the other notch in the flange being wider and gripping around the insulation of the other wire of the field, the wire of the field then being connected to the slip ring which is carried on the insulation. That slip ring, preferably, is also formed with an external flange to which its connecting wire can be secured, for example by soldering. The support carrier may be a solid stub shaft for attachment to the shaft of the alternator, or a tube to be slipped thereover.
Abstract:
The invention relates to a tRNA synthetase capable of binding Nε-acetyl lysine, wherein said synthetase comprises a polypeptide having at least 90% sequence identity to the amino acid sequence of MbPyIRS, and wherein said synthetase comprises a L266M mutation.
Abstract:
The invention relates to an electrolysis cell for preparing liquid alkali metal from a liquid alkali metal-heavy metal alloy, which comprises a tube (1) which is arranged essentially horizontally and has a closure device (4) at each of the two ends of the tube (1), at least one solid electrolyte tube (12) arranged in the tube (1), which conducts alkali metal ions and is closed at one end and has an opening (11) at the other end, with the solid electrolyte tube (12) being arranged concentrically in the tube (1) and having the opening (11) facing one end of the tube (1) so that a first annular gap (13) for conducting the liquid alkali metal-heavy metal alloy which forms one anode is present between the inside of the tube (1) and the outside of the solid electrolyte tube (12), an interior space (14) in the solid electrolyte tube (12) for accommodating the liquid alkali metal which can be utilized as cathode, where the closure device (4) comprises an alkali metal-heavy metal alloy inlet (8) or outlet (9) opening into the first annular gap (13), a holder for the solid electrolyte tube (12), an alkali metal outlet (15) connected to the interior space (14) of the solid electrolyte tube (12) and a sealing system for sealing the interior space (14) of the solid electrolyte tube (12) and the alkali metal outlet (15) off from the first annular gap (13), the alkali metal-heavy metal alloy inlet (8) or outlet (9) and from the surroundings of the electrolysis cell.
Abstract:
To effect a quasi-isothermal catalytic reaction of SO.sub.2 to SO.sub.3, a plurality of consecutive rows of banks of cooling tubes, are provided in the bed of shaped catalyst bodies in a contact reactor in such a manner that the banks of succeeding rows are staggered from the banks of the preceding rows. The distance between the cooling tubes in the banks is so selected that a penetration of entire catalyst bodies into the banks will virtually be prevented. The banks are so designed that the pressure drop of the gas in the banks is approximately the same as the pressure drop in the layer of catalyst between the bank. The distance between the banks is larger than the width of the banks.
Abstract:
Cleaned flue gases normally accumulate as steam-saturated gases with temperatures of from 40.degree. to 55.degree. C. after wet cleaning processes for the removal of sulfur and/or nitrogen compounds. Before being let off through a stack, however, these gases have to be heated to at least 72.degree. C.This invention relates to a process for reheating flue gases after wet cleaning.
Abstract:
The invention relates to a tRNA synthetase capable of binding N⊂-acetyl lysine, in particular, the invention relates to a tRNA synthetase capable of binding N∈-acetyl lysine wherein said synthetase comprises a polypeptide having at least 90% sequence identity to the amino acid sequence of MbPy1RS. The invention also relates to a method of making a polypeptide comprising N∈-acetyl lysine comprising arranging for the translation of a RNA encoding said polypeptide, wherein said RNA comprises an amber codon, wherein said translation is carried out in the presence of a polypeptide according to any of claims 1 to 11 and in the presence of tRNA capable of being charged with N∈-acetyl lysine, and in the presence of N∈-acetyl lysine.
Abstract:
There is provided a method for evolving an orthogonal rRNA molecule, comprising the steps of: providing one or more libraries of mutant orthogonal rRNA molecules and introducing the libraries into cells such that the orthogonal rRNA is incorporated into ribosomes to provide orthogonal ribosomes; providing one or more orthogonal mRNA molecules which (i) are not translated by natural ribosomes, and (ii) comprise one or more orthogonal mRNA codons; assaying the translation of the of the orthogonal mRNA and selecting the orthogonal rRNA molecules which translate the orthogonal mRNA, wherein the assay in step (c) requires translation of one or more orthogonal mRNA codons in the orthogonal mRNA; and orthogonal ribosomes incorporating such rRNA molecules.
Abstract:
The present invention relates to the preparation of nitrobenzoic acids by oxidizing particular nitrotoluenes, nitrobenzyl alcohols, esters and/or ethers in the presence of nitric acid at elevated temperature and elevated pressure. It has been found that the particular nitrotoluenes, nitrobenzyl alcohols, esters and/or ethers may be oxidized particularly reliably and in high yields using nitric acid to the benzoic acid derivatives when they are metered into the nitric acid.