1069-29-0Relevant articles and documents
Cysteine-based silver nanoparticles as dual colorimetric sensors for cations and anions
Praveen Kumar,Kathuria, Lakshay,Haridas
, p. 8382 - 8389 (2016)
We report herein the synthesis of silver nanoparticles (Ag NPs), their characterization, and anion and cation sensing properties. Freshly prepared amide-triazole Ag NPs (3a-Ag NPs and 3b-Ag NPs) could detect fluoride and cations such as Hg2+ and Cd2+ in aqueous media with a color change from pink to brown. The cysteine-based Ag NPs 5b-Ag NPs showed a colorimetric response towards H2PO4-, whereas 6-Ag NPs showed a colorimetric response towards H2PO4- and HSO4- in aqueous media.
The trans opening of ethylene diamine tetra acetic acid bis anhydride (EDTAA) with cystine-di-OMe: One-step synthesis of bihelical systems Respectfully dedicated to Professor M.V. George on the occasion of his 85th birthday
Naini, Santhosh Reddy,Ranganathan, Subramania,Yadav, Jhillu Singh,Sarma,Ramakrishna,Nagaraj, Ramakrishnan,Premkumar, J. Richard,Sastry, G. Narahari
, p. 1132 - 1135 (2014)
The generation of a bihelical (figure of 8) motif has been illustrated by trans opening of EDTAA with l-cystine-di-OMe and d-penicillamine disulfide-di-OMe. In the former case the open cyclic system, arising by cis addition, was secured as a minor product.
Kinetics and thermodynamics of oxidation mediated reaction in L-cysteine and its methyl and ethyl esters in dimethyl sulfoxide-d6 by NMR spectroscopy
Dougherty, Ryan J.,Singh, Jaideep,Krishnan
, p. 196 - 200 (2017)
L-Cysteine (L-Cys), L-Cysteine methyl ester (L-CysME) or L-Cysteine ethyl ester (L-CysEE), when dissolved in dimethyl sulfoxide, undergoes an oxidation process. This process is slow enough and leads to nuclear magnetic resonance (NMR) spectral changes that could be monitored in real time. The oxidation mediated transition is modeled as a pseudo-first order kinetics and the thermodynamic parameters are estimated using the Eyring's formulation. L-Cysteine and their esters are often used as biological models due to the remarkable thiol group that can be found in different oxidation states. This oxidation mediated transition is due to the combination of thiol oxidation to a disulfide followed by solvent-induced effects may be relevant in designing cysteine-based molecular models.
Expressed Protein Ligation without Intein
Kratch, Kaci C.,Leeuwon, Sunshine Z.,Liu, Wenshe Ray,Morse, Jared S.,Qiao, Yuchen,Wang, Wesley Wei,Wang, Xiaoyan Aria,Xu, Shiqing,Yu, Ge
supporting information, p. 7047 - 7054 (2020/05/14)
Proteins with a functionalized C-terminus such as a C-terminal thioester are key to the synthesis of larger proteins via expressed protein ligation. They are usually made by recombinant fusion to intein. Although powerful, the intein fusion approach suffe