Comparative Analysis of Cleavable Azobenzene-Based Affinity Tags for Bioorthogonal Chemical Proteomics
摘要:
The advances in bioorthogonal ligation methods have provided new opportunities for proteomic analysis of newly synthesized proteins, posttranslational modifications, and specific enzyme families using azide/alkyne-functionalized chemical reporters and activity-based probes. Efficient enrichment and elution of azide/alkyne-labeled proteins with selectively cleavable affinity tags are essential for protein identification and quantification applications. Here, we report the synthesis and comparative analysis of Na2S2O4-cleavable azobenzene-based affinity tags for bioorthogonal chemical proteomics. We demonstrated that ortho-hydroxyl substituent is required for efficient azobenzene-bond cleavage and show that these cleavable affinity tags can be used to identify newly synthesized proteins in bacteria targeted by amino acid chemical reporters as well as their sites of modification on endogenously expressed proteins. The azobenzene-based affinity tags are compatible with in-gel, in-solution, and on-bead enrichment strategies and should afford useful tools for diverse bioorthogonal proteomic applications.
Synthesis and phase behaviors of side-chain liquid-crystalline polymers containing azobenzene mesogen with the different length alkyl tail
作者:Sheng Chen、Aihua Ling、Hai-Liang Zhang
DOI:10.1002/pola.26683
日期:2013.7.1
m = 1, 2, 3, 4, 5, and 6, the polymers exhibited a monosmectic A phase in which the smectic layer period was almost identical to the side‐chain length. In addition, for m = 2, 3, 4, and 5, they presented the monosmectic C phase in low temperature; moreover, the tilt angle increased from 23.3 to 40.5°. For m = 8, 10, 14, and 18, the polymers showed a bilayer smectic A phase in which the layer spacing was
Optically Reconfigurable Monolayer of Azobenzene Donor Molecules on Oxide Surfaces
作者:Kyle M. McElhinny、Peishen Huang、Yongho Joo、Catherine Kanimozhi、Arunee Lakkham、Kenji Sakurai、Paul G. Evans、Padma Gopalan
DOI:10.1021/acs.langmuir.6b04585
日期:2017.3.7
methods for materialsynthesis. It has been challenging to create complete molecular monolayers that exhibit external reversible control of the structure and electronic configuration. We report a monolayer/inorganic interface consisting of an organic monolayer assembled on an oxide surface, exhibiting structural and electronic reconfiguration under ultraviolet illumination. The molecular monolayer is
Identification of <i>ortho</i>-Substituted Benzoic Acid/Ester Derivatives via the Gas-Phase Neighboring Group Participation Effect in (+)-ESI High Resolution Mass Spectrometry
作者:William D. Blincoe、Agustina Rodriguez-Granillo、Josep Saurí、Nicholas A. Pierson、Leo A. Joyce、Ian Mangion、Huaming Sheng
DOI:10.1007/s13361-017-1884-8
日期:2018.4.1
(DFT), and ion mobility spectrometry-mass spectrometry (IMS-MS) studies. Significant water/alcohol loss was also observed for 1-substituted 1, 2, 3-triazoles but not for the isomeric 2-substituted 1, 2, 3-triazole analogs. IMS-MS, NMR, and DFT studies were conducted to show that the preferred orientation of the 2-substituted triazole rotamer was away from the electrophilic center of the reaction, whereas
Twin liquid crystals and segmented thermotropic polyesters containing azobenzene—effect of spacer length on LC properties
作者:Chinmay G. Nardele、S. K. Asha
DOI:10.1002/pola.26062
日期:2012.7.15
series of twinliquid crystalline (LC) molecules based on phenyl and naphthyl azobenzene (PnP and NpnNp) as well as segmented copolyesters based on them. The twin series had the structure azobenzene–oligooxyethylene–azobenzene, where the ethyleneoxy length was varied from 2 to 6 units. The LCproperties of the twin series depended on the chemical structure of the azochromophore and also the length of the
Transfer Material, and Process for Producing Liquid Crystal Cell Substrate and Liquid Crystal Display Device Using the Same
申请人:Amimori Ichiro
公开号:US20090174857A1
公开(公告)日:2009-07-09
A novel transfer material is disclosed. The transfer material comprises, at least, a support, and, thereon, an optically uniaxial or biaxial anisotropic layer and a photosensitive polymer layer. A novel process for producing a liquid crystal cell substrate is also disclosed. The process comprises, at least, [1] laminating a transfer material as set forth in any one of claims
1
to
11
on a substrate; [2] removing the support from the transfer material laminated on the substrate; and [3] exposing the photosensitive polymer layer disposed on the substrate to light.