DNAを不活性四極アンモニア基板に逆結合してDNAエンコードされたライブラリ合成における反応性の拡大
Dillon T Flood1, Shota Asai1, Xuejing Zhang1,2
1Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States.
Journal of the American Chemical Society
|May 29, 2019
まとめ
DNAエンコードライブラリ (DEL) は,大量の化合物のスクリーニングを可能にします. 新しいリバーシブル・アドソープション・トゥ・ソリッド・サポート (RASS) 方法は,DEL化学を拡張し,新しい反応とより多様な薬剤のようなライブラリを可能にします.
科学分野:
- 薬剤化学
- 合成化学
- バイオテクノロジー
背景:
- DNAエンコードライブラリ (DEL) は 鉛の識別に強力で 何十億もの化合物をスクリーニングします
- DNAタグの水性性質は,DELで適用可能な化学成分を制限しています.
- 固体への可逆吸附 (RASS) は,非共性吸附によるバイオ分子改変を可能にします.
研究 の 目的:
- 化学的制約を克服するためにRASSをDELに適応させる.
- DELのほぼ無水状態での有機溶剤での反応を可能にします.
- 薬のようなライブラリを 開発すること
主な方法:
- DNAエンコードライブラリ合成のためのRASS戦略の適応.
- リバーシブルアドソープションを用いた有機溶剤の合成改変を行う.
- 新しく開発された化学を統合したDELリハーサルによるデモ.
主要な成果:
- 幅広い基板範囲を持つC ((sp2) -C ((sp3) デカルボキシル化クロスカップリングを有効にします.
- 電気化学アミネーションを初めて開発した.
- 還元性アミネーション条件を改善し,DELリハーサルで有用性を証明しました.
結論:
- RASSは,以前はアクセスできない新しいDELの反応性にアクセスできます.
- このアプローチは,DELの構築のための化学空間を拡大します.
- RASSは より多様で薬物に似た 図書館の作成を容易にするのです
関連する概念動画
DNA-only Transposons
17.3K
DNA-only transposons are called autonomous transposons since they code for the enzyme transposase that is required for the transposition mechanism. Insertion of transposons can alter gene functions in multiple ways. They can mutate the gene, alter gene expression by introducing a novel promoter or insulator sequence, introduce new splice sites, and change the mRNA transcripts produced, or remodel chromatin structure.
The donor site from where the transposon is excised is either degraded or...
The donor site from where the transposon is excised is either degraded or...
17.3K
From DNA to Protein
22.2K
The flow of genetic information in cells from DNA to mRNA to protein is described by the central dogma, which states that genes specify the sequence of mRNAs, which in turn specify the sequence of amino acids making up all proteins. The decoding of one molecule to another is performed by specific proteins and RNAs. Because the information stored in DNA is so central to cellular function, it makes intuitive sense that the cell would make mRNA copies of this information for protein synthesis...
22.2K
Complementary DNA
31.4K
Overview
31.4K
The DNA Replication Fork
40.6K
An organism’s genome needs to be duplicated in an efficient and error-free manner for its growth and survival. The replication fork is a Y-shaped active region where two strands of DNA are separated and replicated continuously. The coupling of DNA unzipping and complementary strand synthesis is a characteristic feature of a replication fork. Organisms with small circular DNA, such as E. coli, often have a single origin of replication; therefore, they have only two replication...
40.6K
DNA Replication
59.0K
DNA replication involves the separation of the two strands of the double helix, with each strand serving as a template from which the new complementary strand is copied. After replication, each double-stranded DNA includes one parental or “old” strand and one “new” strand. This is known as semiconservative replication. The resulting DNA molecules have the same sequence and are divided equally into the two daughter cells.
Replication in Prokaryotes
DNA replication...
Replication in Prokaryotes
DNA replication...
59.0K
Translesion DNA Polymerases
11.1K
Translesion (TLS) polymerases rescue stalled DNA polymerases at sites of damaged bases by replacing the replicative polymerase and installing a nucleotide across the damaged site. Doing so, TLS allows additional time for the cell to repair the damage before resuming regular DNA replication.
TLS polymerases are found in all three domains of life - archaea, bacteria, and eukaryotes. Of the different classes of TLS polymerases, members of the Y family are fitted with specialized structures that...
TLS polymerases are found in all three domains of life - archaea, bacteria, and eukaryotes. Of the different classes of TLS polymerases, members of the Y family are fitted with specialized structures that...
11.1K


