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5629 results about "Cysteine" patented technology

Cysteine (symbol Cys or C; /ˈsɪstiiːn/) is a semiessential proteinogenic amino acid with the formula HO₂CCH(NH₂)CH₂SH. The thiol side chain in cysteine often participates in enzymatic reactions, as a nucleophile. The thiol is susceptible to oxidation to give the disulfide derivative cystine, which serves an important structural role in many proteins. When used as a food additive, it has the E number E920. It is encoded by the codons UGU and UGC.

Nucleic acid encoding poly-zinc finger proteins with improved linkers

Polynucleotides encoding chimeric proteins, and methods for their production and use are disclosed. The chimeric proteins comprise a flexible linker between two zinc finger DNA-binding domains, wherein the linker contains eight or more amino acids between the second conserved histidine residue of the carboxy-terminal zinc finger of the first domain and the first conserved cysteine residue of the amino-terminal zinc finger of the second domain.
Owner:MASSACHUSETTS INST OF TECH

Thiol selective water soluble polymer derivatives

The present invention provides water-soluble, polymer derivatives having a thiol-selective terminus suitable for selective coupling to thiol groups, such as those contained in the cysteine residues of proteins.
Owner:NEKTAR THERAPEUTICS INC

Molybdenum disulfide nano-sheet film material and its preparation methods

The invention discloses a molybdenum disulfide (MoS2) nano-sheet film material and its preparation methods. The film material is characterized in that MoS2 nano-sheets vertically and sequentially grow on a conductive substrate, and the diameters and the thicknesses of the MoS2 nano-sheets are 0.05-2mum and 2-30nm respectively. There are two preparation methods of the film material. One preparation method comprises the following steps: a substrate which can be a copper sheet, a silver sheet, a titanium sheet, a tungsten sheet, a molybdenum sheet or carbon is placed in a solution comprising a molybdate and sulfur-containing compounds (comprising thiourea, thioacetamide and L-cysteine); and the sulfur-containing compounds undergo a hydrothermal reaction to grow the compactly-grown and uniformly-sequential MoS2 nano-sheet films on the substrate. Another method comprises the following steps: the molybdenum sheet is directly placed in a solution of the sulfur-containing compounds (comprising thiourea, thioacetamide and L-cysteine); and the sulfur-containing compounds undergo a sulfuration reaction under a hydrothermal condition to form the compact and uniform MoS2 nano-sheet ordered films. The film has a low hydrogen evolution overpotential (-30mv), a small Tafel slope (52mV/dec) and a high electrochemical stability, and is a hydrogen evolution electrode material extremely having an application prospect.
Owner:深圳海氢科技有限公司
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