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関連する概念動画

Protein Modifications in the RER01:26

Protein Modifications in the RER

Modification of secretory and transmembrane proteins entering the rough ER begins in the ER lumen. These modifications aid in protein folding and stabilize the acquired tertiary structure. Protein modifications in the rough ER co-occur at different stages of protein folding.
Broadly, these modifications can be categorized into four main categories — glycosylation, formation of disulfide bonds, assembly of protein subunits, and specific proteolytic cleavages like removal of signal sequences.
Tagging and Fusion Proteins01:24

Tagging and Fusion Proteins

Proteins are involved in several cellular processes and biochemical reactions. Analyzing a specific protein of interest requires it to be isolated from the other proteins in the cell. This is achieved by overexpressing the specific gene in a suitable host to produce large quantities of the target protein. A tag or label is recombined with the gene to produce a fusion protein containing the target protein and the tag. The tags on these fusion proteins can then be used for easy detection and...
Covalently Linked Protein Regulators02:04

Covalently Linked Protein Regulators

Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein.
Acetals and Thioacetals as Protecting Groups for Aldehydes and Ketones01:24

Acetals and Thioacetals as Protecting Groups for Aldehydes and Ketones

Acetals are formed by reacting two equivalents of alcohol with carbonyl compounds like aldehydes or ketones. Acetals are unaffected by bases, nucleophiles, oxidizing agents, and reducing agents. They serve as protecting groups for aldehydes and ketones. Acetals can be easily formed and also easily removed via mild acid hydrolysis.
In the presence of multiple functional groups, when selective reduction of one group over the other is desired, groups like aldehydes and ketones that form acetals...

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関連する実験動画

Updated: May 9, 2026

Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation
11:09

Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation

Published on: August 1, 2018

調節可能なチオエステルは,痕跡のない可逆性タンパク質PEGylationに対する"減少"応答機能として機能します.

Jianwei Chen1, Mingkun Zhao, Fude Feng

  • 1Department of Pharmacology, Dan L. Duncan Cancer Center, and Cardiovascular Research Institute, Baylor College of Medicine, Houston, Texas 77030, USA.

Journal of the American Chemical Society
|July 16, 2013
PubMed
まとめ

ティオエステル化学は,還元反応性薬剤投与のためのジスルファイド結合に新しい,調整可能な代替手段を提供します. このチオール反応系は,合成が容易で,従来の方法よりも広範な運動制御を提供します.

さらに関連する動画

Targeting Cysteine Thiols for in Vitro Site-specific Glycosylation of Recombinant Proteins
11:25

Targeting Cysteine Thiols for in Vitro Site-specific Glycosylation of Recombinant Proteins

Published on: October 4, 2017

Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation
07:16

Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation

Published on: June 21, 2021

関連する実験動画

Last Updated: May 9, 2026

Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation
11:09

Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation

Published on: August 1, 2018

Targeting Cysteine Thiols for in Vitro Site-specific Glycosylation of Recombinant Proteins
11:25

Targeting Cysteine Thiols for in Vitro Site-specific Glycosylation of Recombinant Proteins

Published on: October 4, 2017

Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation
07:16

Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation

Published on: June 21, 2021

科学分野:

  • 化学生物学 化学生物学とは
  • 薬物の配送システム
  • 材料科学 材料科学とは

背景:

  • ディスルファイド結合は,現在の薬物投与技術で使用されている主要な減少反応トリガーです.
  • 既存の二硫化物ベースのシステムは,合成的アクセシビリティと運動的チューナビリティに制限があります.

研究 の 目的:

  • 先進的な薬物投与アプリケーションのための新しいチオール反応性化学としてチオエステルを導入し,特徴づけること.
  • ステリック環境を改変することによって,チオエステルの調節可能な反応性を探求する.
  • チオエステル化学を用いた,痕跡のない,可逆性タンパク質のPEGylation反応剤を開発する.

主な方法:

  • 異なるステリック環境を持つチオエステル化合物の合成と特徴付け.
  • チオエステル結合の反応性と調節性を評価するための運動学的研究.
  • チオエステル化学に基づいた新しいタンパク質のペギレーション反応剤の開発と試験.

主要な成果:

  • ティオエスターは,溶硫化物と比較して,容易な合成と数次元のより広い動的調節性を示しています.
  • チオエステルの反応性は,チオエステル結合の周りのステリック塊を調整することによって正確に調節することができます.
  • ティオエステル化学を用いて,新しい無痕および可逆のタンパク質PEGylation反応剤が成功裏に開発されました.

結論:

  • Thioester化学は,次世代の減少反応性薬剤投与システムを開発するための汎用的で高度に調整可能なプラットフォームを表しています.
  • チオエステルによって提供される簡単な合成と広範な運動制御は,現在の二硫化物ベースのアプローチの限界を克服します.
  • 開発されたチオエステルベースのPEGylation反応剤は,先進的な生物結合戦略の有望性を示しています.